The following discussion and analysis should be read in conjunction with our
audited financial statements and the related notes that appear elsewhere in this
Annual Report on Form 10-K.



This discussion and analysis generally covers our financial condition and
results of operations for the year ended December 31, 2020, including
year-over-year comparisons versus the year ended December 31, 2019. Our Annual
Report on Form 10-K for the year ended December 31, 2019 includes a discussion
and analysis of our financial condition and results of operations for the year
ended December 31, 2018 in Item 7 of Part II, "Management's Discussion and
Analysis of Financial Condition and Results of Operations."



Overview



We are a specialty pharmaceutical company focused on the development and
commercialization of innovative therapies for use in medically supervised
settings. DSUVIA® (known as DZUVEO in Europe) and Zalviso, are both focused on
the treatment of acute pain, and each utilize sufentanil, delivered via a
non-invasive route of sublingual administration, exclusively for use in
medically supervised settings. On November 2, 2018, the U.S. Food and Drug
Administration, or FDA, approved our resubmitted NDA for DSUVIA for use in
adults in certified medically supervised healthcare settings, such as hospitals,
surgical centers, and emergency departments, for the management of acute pain
severe enough to require an opioid analgesic and for which alternative
treatments are inadequate. In June 2018, the European Commission, or EC, granted
marketing approval of DZUVEO for the treatment of patients with
moderate-to-severe acute pain in medically monitored settings. We are further
developing a distribution capability and commercial organization to continue to
market and sell DSUVIA in the United States. The commercial launch of DSUVIA in
the United States occurred in the first quarter of 2019. In geographies where we
decide not to commercialize ourselves, including for DZUVEO in Europe, we may
seek to out-license commercialization rights. We currently intend to
commercialize and promote DSUVIA/DZUVEO outside the United States with one or
more strategic partners, although we have not yet entered into any such
arrangement. The timing of the resubmission of the Zalviso NDA is dependent upon
the finalization of the FDA's new opioid approval guidelines and process. If we
are successful in obtaining approval of Zalviso in the United States, we plan to
potentially promote Zalviso either by ourselves or with strategic partners.
Zalviso was approved for sale in the European Union on September 18, 2015, and
was initially commercialized by Grünenthal GmbH, or Grünenthal. On May 18, 2020,
we received a notice from Grünenthal that it was exercising its right to
terminate the Collaboration and License Agreement, or, as amended, the License
Agreement, which granted Grünenthal the European rights to commercialize Zalviso
in the 28 EU member states at the time of the agreement, plus Switzerland,
Liechtenstein, Iceland, Norway and Australia, or the Territory, for human use in
pain treatment in medically supervised settings, and the related Manufacture and
Supply Agreement, or, as amended, the MSA, under which AcelRx exclusively
manufactured and supplied Zalviso to Grünenthal for commercial sales in the
Territory. The MSA, together with the License Agreement, are referred to as the
Grünenthal Agreements. The terms of the Grünenthal Agreements were extended to
May 2021 to enable Grünenthal to sell down its Zalviso inventory, a right it had
under the Grünenthal Agreements. The rights to market and sell Zalviso in the
Territory revert back to us in May 2021.



Product Development Programs


Our product development portfolio features two innovative therapies for the treatment of acute pain. Please refer to "Part I. Item 1. Business-Our Portfolio" for a detailed discussion of DSUVIA and Zalviso.





Promotion Agreement



On October 1, 2020, we entered into a promotion agreement, or the Promotion
Agreement, with La Jolla Pharmaceutical Company, or La Jolla, and Tetraphase
Pharmaceuticals, Inc., or Tetraphase, effective as of September 30, 2020,
pursuant to which La Jolla will detail and promote DSUVIA. Under the terms of
this agreement, La Jolla is responsible for maintaining compliance under the
agreed marketing and promotion plan and achieving a minimum number of sales
calls per calendar quarter. We will not detail and promote XERAVA™
(eravacycline) under this agreement.



The Promotion Agreement has a two-year term. We may terminate the agreement upon
30 days' notice. After one year, La Jolla may terminate the agreement upon 30
days' notice and may do so earlier in the event we undergo a change of control
and change in management. We will pay La Jolla a revenue share on net sales of
DSUVIA in the sales territories covered by the Promotion Agreement, other than
sales to certain excluded accounts. These sales territories do not overlap with
the territories covered by our sales force. If La Jolla fails to meet its
detailing requirements in a given calendar quarter, it will pay us a royalty on
net sales of XERAVA in the United States during such quarter.



The Promotion Agreement terminated the co-promotion agreement, or the Co-Promotion Agreement, we entered into with Tetraphase on March 15, 2020.


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On March 16, 2020, in connection with entering into the Co-Promotion Agreement,
we eliminated 30 positions, mainly within the commercial organization. As of
December 31, 2020, we had approximately 25 sales representatives, including
those under the Promotion Agreement with La Jolla.



Distribution Agreement



On July 17, 2020, we entered into a distribution agreement, or the Distribution
Agreement, with Zimmer Biomet Dental, or ZB Dental, pursuant to which ZB Dental
obtained the exclusive right to promote, market, sell, and arrange to distribute
DSUVIA in the United States to clinicians, dentists, surgeons and other licensed
health care practitioners that perform dental (including specialty dental),
oral-maxillofacial, cranio-maxillofacial or oral surgery procedures, or
Professionals, and their respective institutions and facilities that are
permitted to use DSUVIA.



ZB Dental's distribution rights are non-exclusive for crossover ambulatory
surgery centers and certain government customers, and do not extend to
ambulatory care centers outside the class of trade or into hospitals. ZB Dental
will conduct any distribution activities in a manner consistent with DSUVIA's
FDA-approved indication and REMS program, and within the parameters established
in the Distribution Agreement. ZB Dental has the right to sublicense its
distribution rights to its qualified marketing partners but may not otherwise
sublicense its distribution rights to any third party without our prior written
consent.


DSUVIA is expected to be available for order by Professionals exclusively through ZB Dental in the United States, pending satisfaction of applicable licensing requirements; prior to such satisfaction, ZB Dental sales representatives will promote and market DSUVIA on our behalf.





General Trends and Outlook



COVID-19-related



Government-mandated shelter-in-place orders and related safety policies on
account of the COVID-19 pandemic continue to prevent us from operating our
business in the normal course. Beginning in early 2020, state and local
officials issued orders in response to the pandemic which included, among other
things, requirements for residents to shelter in place and for non-essential
businesses to cease activities at facilities within certain cities, counties,
and states. State and local officials have taken different approaches to these
orders, and some have not issued any such orders. Once issued, the orders have
been relaxed and then tightened, depending on the rate of COVID-19 cases. As a
result of these orders, we implemented a work from home policy for our
California-based employees and we continue to adhere to the various and diverse
orders issued by government officials in the jurisdictions in which we operate.
In addition, some hospitals, ambulatory surgery centers and other healthcare
facilities have barred visitors that are not caregivers or mission-critical and
otherwise restricted access to such facilities, and we have no visibility as to
when these restrictions will be lifted. As a result, the educational and
promotional efforts of our commercial and medical affairs personnel have been
substantially reduced, and in some cases, stopped. Cancellation or delays of
formulary committee meetings and delays of elective surgeries have also affected
the pace of formulary approvals and, consequently, the rate of adoption and use
of DSUVIA. We expect our near-term sales volumes to be adversely impacted as
long as access to healthcare facilities by our commercial and medical affairs
personnel continues to be limited. We will continue to evaluate the impact on
our revenues and related metrics and operating expenses during this period and
assess the need to adjust our expenses and expectations.



As a result of international travel restrictions, the timing for testing and
acceptance of our DSUVIA high-volume packaging line has been delayed. Based on
our best estimate, we project that the line will be installed in the first half
of 2021, with FDA approval expected in 2022.



We will continue to engage with various elements of our supply chain and
distribution channel, including our customers, contract manufacturers, and
logistics and transportation providers, to meet demand for products and to
remain informed of any challenges within our supply chain. We continue to
monitor demand and intend to adapt our plans as needed to continue to drive our
business and meet our obligations during the evolving COVID-19 pandemic.
However, if the COVID-19 pandemic continues and persists for an extended period
of time, we may face disruptions to our supply chain and operations, and
associated delays in the manufacturing and supply of our products. Such supply
disruptions may adversely impact our ability to generate sales of and revenues
from our products and our business, financial condition, results of operations
and growth prospects could be adversely affected.



As the global pandemic of COVID-19 continues to rapidly evolve, it could result
in a significant long-term disruption of global financial markets, reducing our
ability to access capital, which could in the future negatively affect our
liquidity. The extent to which the COVID-19 pandemic impacts our business, our
ability to generate sales of and revenues from our approved products, and our
future clinical development and regulatory efforts will depend on future
developments that are highly uncertain and cannot be predicted with confidence,
such as the ultimate geographic spread of the disease, the duration of the
outbreak, travel restrictions, quarantines and social distancing requirements in
the United States and other countries, business closures or business disruptions
and the effectiveness of actions taken in the United States and other countries
to contain and treat the virus.



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Department of Defense



In April 2020, DSUVIA achieved Milestone C approval by the Department of
Defense, or DoD, a decision that clears the path for the DoD to begin placing
orders for DSUVIA. In September 2020, we announced that DSUVIA was added to the
DoD Joint Deployment Formulary, a core list of pharmaceutical products that are
designated for deploying military units across all service branches. Also in
September 2020, the U.S. Army awarded AcelRx with an initial contract of up to
$3.6 million over the next four years for the purchase of DSUVIA to support a
DoD-sponsored study to aid the development of clinical practice guidelines.



Financial Overview



We have incurred net losses and generated negative cash flows from operations
since inception and expect to incur losses in the future as we continue
commercialization activities to support the U.S. launch of DSUVIA, support
European sales of Zalviso by any replacement partner, and any future research
and development activities needed to support the U.S. approval of Zalviso, once,
and if, the NDA is resubmitted. As a result, we expect to continue to incur
operating losses and negative cash flows until such time as DSUVIA has gained
market acceptance and generated significant revenues.



We will incur capital expenditures related to the installation of our high-volume automated packaging line for DSUVIA, which we project will be installed in the first half of 2021 with FDA approval expected in 2022. We anticipate that the high-volume line for DSUVIA will contribute to a significant decrease in costs of goods sold in 2022 and beyond.





Our net losses were $40.4 million, $53.2 million and $47.1 million during the
years ended December 31, 2020, 2019 and 2018, respectively. As of December 31,
2020, we had an accumulated deficit of $438.5 million. As of December 31, 2020,
we had cash, cash equivalents and short-term investments totaling $42.9 million
compared to $66.1 million as of December 31, 2019.



Critical Accounting Estimates



The accompanying discussion and analysis of our financial condition and results
of operations are based upon our Consolidated Financial Statements and the
related disclosures, which have been prepared in accordance with accounting
principles generally accepted in the United States. The preparation of these
financial statements requires us to make estimates, assumptions and judgments
that affect the reported amounts in our financial statements and accompanying
notes. We base our estimates on historical experience and on various other
assumptions that we believe to be reasonable under the circumstances, the
results of which form the basis for making judgments about the carrying values
of assets and liabilities that are not readily apparent from other sources.
Actual results may differ from these estimates under different assumptions or
conditions. To the extent that there are material differences between these
estimates and actual results, our future financial statement presentation,
financial condition, results of operations and cash flows will be affected.
Note 1 "Organization and Summary of Significant Accounting Policies" in the
accompanying Notes to Consolidated Financial Statements describes the
significant accounting policies used in the preparation of the financial
statements. Certain of these significant accounting policies are considered to
be critical accounting policies, as defined below.



A critical accounting policy is defined as one that is both material to the
presentation of our financial statements and requires management to make
difficult, subjective or complex judgments that could have a material effect on
our financial condition and results of operations. Specifically, critical
accounting estimates have the following attributes: (i) we are required to make
assumptions about matters that are highly uncertain at the time of the estimate;
and (ii) different estimates we could reasonably have used, or changes in the
estimate that are reasonably likely to occur, would have a material effect on
our financial condition or results of operations.



We believe the following policies to be the most critical to an understanding of
our financial condition and results of operations because they require us to
make estimates, assumptions and judgments about matters that are inherently
uncertain. Management has discussed the development, selection and disclosure of
the following estimates with the Audit Committee.



Revenue from Contracts with Customers





We follow the provisions of ASC Topic 606, Revenue from Contracts with
Customers. The guidance provides a unified model to determine how revenue is
recognized. We recognize revenue upon transfer of control of promised products
or services to customers in an amount that reflects the consideration we expect
to receive in exchange for those products or services. We sell our products
primarily through wholesale distributors.



In determining the appropriate amount of revenue to be recognized as we fulfill
our obligations under our agreements, we perform the following steps:
(i) identification of the promised goods or services in the contract;
(ii) determination of whether the promised goods or services are performance
obligations, including whether they are distinct in the context of the contract;
(iii) measurement of the transaction price, including the constraint on variable
consideration; (iv) allocation of the transaction price to the performance
obligations based on estimated selling prices; and (v) recognition of revenue
when (or as) we satisfy each performance obligation.



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Product sales revenue



We sell our product primarily through distributors. Revenues from product sales
are recognized when distributors obtain control of our product, which occurs at
a point in time, upon delivery to such distributors. These distributors
subsequently resell the product to certified medically supervised healthcare
settings. In addition to distribution agreements with these customers, we enter
into arrangements with group purchasing organizations, or GPOs, and other
certified medically supervised healthcare settings that provide for privately
negotiated discounts with respect to the purchase of our products. For revenue
recognition under bill-and-hold arrangements, wherein the customer agrees to buy
product from us but requests delivery at a later date, we deem that control
passes to the customer when the product is ready for delivery. We recognize
revenue under these types of arrangements when a signed agreement is in place,
the transaction is billable, the customer has significant risk and rewards for
the product and the ability to direct the asset, the product has been set aside
specifically for the customer, and the product cannot be redirected to another
customer. Revenue from product sales is recorded at the transaction price, net
of estimates for variable consideration consisting of chargebacks, government
rebates, returns, distribution fees and GPO fees. Variable consideration is
recorded at the time product sales are recognized resulting in a reduction in
product revenue. The amount of variable consideration that is included in the
transaction price may be constrained and is included in the net sales price only
to the extent that it is probable that a significant reversal in the amount of
the cumulative revenue recognized will not occur in a future period. Variable
consideration is estimated using the most-likely amount method, which is the
single-most likely outcome under a contract and is typically at the stated
contractual rate. Where appropriate, these estimates take into consideration a
range of possible outcomes that are probability-weighted in accordance with the
expected value method under ASC Topic 606 for relevant factors. These factors
include current contractual and statutory requirements, specific known market
events and trends, industry data, and/or forecasted customer buying and payment
patterns. Actual amounts of consideration ultimately received may differ from
our estimates. If actual results vary materially from our estimates, we will
adjust these estimates, which will affect revenue from product sales and
earnings in the period such estimates are adjusted. These estimates include:



Chargebacks - Our customers subsequently resell our product to qualified
healthcare providers. In addition to distribution agreements with customers, we
enter into arrangements with qualified healthcare providers that provide for
chargebacks and discounts with respect to the purchase of our product.
Chargebacks represent the estimated obligations resulting from contractual
commitments to sell product to qualified healthcare providers at prices lower
than the list prices charged to customers who directly purchase the product from
us. Customers charge us for the difference between what they pay for the product
and the ultimate selling price to the qualified healthcare providers. These
reserves are established in the same period that the related revenue is
recognized, resulting in a reduction of product revenue and accounts receivable.
Chargeback amounts are determined at the time of resale to the qualified
healthcare providers by customers, and we issue credits for such amounts
generally within a few weeks of the customer's notification to us of the resale.
Reserves for chargebacks consists of credits that we expect to issue for units
that remain in the distribution channel inventories at each reporting period end
that we expect will be sold to the qualified healthcare providers, and
chargebacks for units that our customers have sold to the qualified healthcare
providers, but for which credits have not been issued.



Government Rebates - We are subject to discount obligations under state Medicaid
programs. We estimate our Medicaid rebates and record them in the same period
the related product revenue is recognized, resulting in a reduction of product
revenue and the establishment of a current liability that is included in accrued
liabilities on the Consolidated Balance Sheet.



Returns - We allow our distributors to return product for credit 6 months prior
to, and up to 12 months after, the product expiration date. As such, there may
be a significant period of time between the time the product is shipped and the
time the credit is issued on returned product.



Distribution Fees - Distribution fees include fees paid to certain customers for
sales order management, data and distribution services. Distribution fees are
recorded as a reduction of revenue in the period the related product revenue is
recognized.



GPO Fees - We pay administrative fees to GPOs for services and access to data.
These fees are based on contracted terms and are paid after the quarter in which
the product was purchased by the GPOs' members.



Trade Discounts and Allowances - We provide our customers with discounts which
include early payment incentives that are explicitly stated in our contracts and
are recorded as a reduction of revenue in the period the related product revenue
is recognized.



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We believe our estimated allowances for chargebacks, government rebates and
product returns require a high degree of judgment and are subject to change
based on our limited experience and certain quantitative and qualitative
factors. We believe our estimated allowances for distribution fees, GPO fees and
trade discounts and allowances do not require a high degree of judgment because
the amounts are settled within a relatively short period of time. We will
continue to assess our estimates of variable consideration as we accumulate
additional historical data and will adjust these estimates accordingly. Changes
in product revenue allowance estimates could materially affect our results of
operations and financial position.



Contract and other collaboration revenue





We entered into award contracts with the DoD to support the development of
DSUVIA. These contracts provided for the reimbursement of qualified expenses for
research and development activities. Revenue under these arrangements was
recognized when the related qualified research expenses were incurred. We were
entitled to reimbursement of overhead costs associated with the study costs
under the DoD arrangements. We estimated this overhead rate by utilizing
forecasted expenditures. Final reimbursable overhead expenses were dependent on
direct labor and direct reimbursable expenses throughout the life of each
contract, which increased or decreased based on actual expenses incurred.



We also generate revenue from collaboration agreements. These agreements
typically include payments for upfront signing or license fees, cost
reimbursements for development and manufacturing services, milestone payments,
product sales, and royalties on licensee's future product sales. Product sales
related revenue under these collaboration agreements is classified as product
sales revenue, while other revenue generated from collaboration agreements is
classified as contract and other collaboration revenue.



Performance Obligations





A performance obligation is a promise in a contract to transfer a distinct good
or service to the customer and is the unit of account in ASC Topic 606. Our
performance obligations include delivering product to our distributors,
commercialization license rights, development services, services associated with
the regulatory approval process, joint steering committee services,
demonstration devices, manufacturing services, material rights for discounts on
manufacturing services, and product supply.



We have optional additional items in contracts, which are considered marketing
offers and are accounted for as separate contracts when the customer elects such
options. Arrangements that include a promise for future commercial product
supply and optional research and development services at the customer's or our
discretion are generally considered as options. We assess if these options
provide a material right to the licensee and if so, such material rights are
accounted for as separate performance obligations. If we are entitled to
additional payments when the customer exercises these options, any additional
payments are recorded in revenue when the customer obtains control of the goods
or services.



Transaction Price



We have both fixed and variable consideration. Non-refundable upfront fees and
product supply selling prices are considered fixed, while milestone payments are
identified as variable consideration when determining the transaction price.
Funding of research and development activities is considered variable until such
costs are reimbursed at which point, they are considered fixed. We allocate the
total transaction price to each performance obligation based on the relative
estimated standalone selling prices of the promised goods or services for each
performance obligation.



At the inception of each arrangement that includes milestone payments, we
evaluate whether the milestones are considered probable of being achieved and
estimate the amount to be included in the transaction price using the most
likely amount method. If it is probable that a significant revenue reversal
would not occur, the value of the associated milestone (such as a regulatory
submission by us) is included in the transaction price. Milestone payments that
are not within our control, such as approvals from regulators, are not
considered probable of being achieved until those approvals are received.



For arrangements that include sales-based royalties, including milestone payments based on the level of sales, and the license is deemed to be the predominant item to which the royalties relate, we recognize revenue at the later of (a) when the related sales occur, or (b) when the performance obligation to which some or all of the royalty has been allocated has been satisfied (or partially satisfied).





Allocation of Consideration



As part of the accounting for these arrangements, we must develop assumptions
that require judgment to determine the stand-alone selling price of each
performance obligation identified in the contract. Estimated selling prices for
license rights and material rights for discounts on manufacturing services are
calculated using an income approach model and can include the following key
assumptions: the development timeline, sales forecasts, costs of product sales,
commercialization expenses, discount rate, the time which the manufacturing
services are expected to be performed, and probabilities of technical and
regulatory success. For all other performance obligations, we use a cost-plus
margin approach.



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Timing of Recognition



Significant management judgment is required to determine the level of effort
required under an arrangement and the period over which we expect to complete
our performance obligations under the arrangement. We estimate the performance
period or measure of progress at the inception of the arrangement and
re-evaluate it each reporting period. This re-evaluation may shorten or lengthen
the period over which revenue is recognized. Changes to these estimates are
recorded on a cumulative catch-up basis. If we cannot reasonably estimate when
our performance obligations either are completed or become inconsequential, then
revenue recognition is deferred until we can reasonably make such estimates.
Revenue is then recognized over the remaining estimated period of performance
using the cumulative catch-up method. Revenue is recognized for products at a
point in time when control of the product is transferred to the customer in an
amount that reflects the consideration we expect to be entitled to in exchange
for those product sales, which is typically once the product physically arrives
at the customer, and for licenses of functional intellectual property at the
point in time the customer can use and benefit from the license. For performance
obligations that are services, revenue is recognized over time proportionate to
the costs that we have incurred to perform the services using the cost-to-cost
input method.



Inventories



Inventories are valued at the lower of cost or net realizable value. Cost is
determined using the first-in, first-out method for all inventories. Inventory
includes the cost of the active pharmaceutical ingredients, or API, raw
materials and third-party contract manufacturing and packaging services.
Indirect overhead costs associated with production and distribution are
allocated to the appropriate cost pool and then absorbed into inventory based on
the units produced or distributed, assuming normal capacity, in the applicable
period. Indirect overhead costs in excess of normal capacity are recorded as
period costs in the period incurred. DSUVIA was approved by the FDA in November
2018. Prior to FDA approval, all manufacturing costs for DSUVIA were expensed to
research and development. Upon FDA approval, manufacturing costs for DSUVIA
manufactured for commercial sale have been capitalized.



Our policy is to write down inventory that has become obsolete, inventory that
has a cost basis in excess of its expected net realizable value and inventory in
excess of expected requirements. We periodically evaluate the carrying value of
inventory on hand for potential excess amount over demand using the same lower
of cost or net realizable value approach as that used to value the inventory.
Because the predetermined, contractual transfer prices we received from
Grünenthal were less than the direct costs of manufacturing, all Zalviso
inventories were carried at net realizable value.



Cost of Goods Sold



Cost of goods sold for product revenue includes third party manufacturing costs,
shipping costs, and indirect overhead costs associated with production and
distribution which are allocated to the appropriate cost pool and recognized
when revenue is recognized. Indirect overhead costs in excess of normal capacity
are recorded as period costs in the period incurred.



Under the Amended Agreements with Grünenthal, we sold Zalviso to Grünenthal at
predetermined, contractual transfer prices that were less than the direct costs
of manufacturing and recognized indirect costs as period costs where they were
in excess of normal capacity and not recoverable on a lower of cost or net
realizable value basis. Cost of goods sold for Zalviso shipped to Grünenthal
includes the inventory costs of API, third-party contract manufacturing costs,
packaging and distribution costs, shipping, handling and storage costs,
depreciation and costs of the employees involved with production.



Leases



In February 2016, the FASB issued Accounting Standards Update, or ASU, No.
2016-02, Leases (Topic 842), to enhance the transparency and comparability of
financial reporting related to leasing arrangements. We adopted the standard
effective January 1, 2019.



At the inception of an arrangement, we determine whether the arrangement is or
contains a lease based on the unique facts and circumstances present. Operating
lease liabilities and their corresponding right-of-use assets are recorded based
on the present value of lease payments over the expected lease term. The
interest rate implicit in lease contracts is typically not readily determinable.
As such, we utilize our incremental borrowing rate, which is the rate incurred
to borrow on a collateralized basis over a similar term an amount equal to the
lease payments in a similar economic environment. Certain adjustments to the
right-of-use asset may be required for items such as initial direct costs paid
or incentives received.



Lease expense is recognized over the expected term on a straight-line basis.
Operating leases are recognized on the balance sheet as right-of-use assets,
operating lease liabilities current and operating lease liabilities non-current.
As a result, we no longer recognize deferred rent on the balance sheet.



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Research and Development Expenses





We expense research and development expenses as incurred. Research and
development expenses consist primarily of direct and research-related allocated
overhead costs such as facilities costs, salaries and related personnel costs,
and material and supply costs. In addition, research and development expenses
include costs related to clinical trials to validate our testing processes and
procedures and related overhead expenses. Expenses resulting from clinical
trials are recorded when incurred based in part on factors such as estimates of
work performed, patient enrollment, progress of patient studies and other
events. We make good faith estimates that we believe to be accurate, but the
actual costs and timing of clinical trials are highly uncertain, subject to
risks and may change depending upon a number of factors, including our clinical
development plan.



Stock-Based Compensation



We measure and recognize compensation expense for all stock-based payment awards
made to our employees and directors, including employee stock options,
restricted stock units and employee stock purchases related to the Employee
Share Purchase Plan, or ESPP, on estimated fair values. The fair value of
equity-based awards is amortized over the vesting period of the award using a
straight-line method.



The Black-Scholes option pricing model requires inputs such as expected term,
expected volatility and risk-free interest rate. These inputs are subjective and
generally require significant analysis and judgment to develop. The expected
term, which represents the period of time that options granted are expected to
be outstanding, is derived by analyzing the historical experience of similar
awards, giving consideration to the contractual terms of the stock­based awards,
vesting schedules and expectations of future employee behavior. Expected
volatilities are estimated using the historical stock price performance over the
expected term of the option, which are adjusted as necessary for any other
factors which may reasonably affect the volatility of AcelRx's stock in the
future. The risk­free interest rate is based on the U.S. Treasury yield in
effect at the time of the grant for the expected term of the award. We recognize
forfeitures as they occur and do not anticipate paying any dividends in the near
future.


Non-Cash Interest Expense on Liability Related to Sale of Future Royalties





In September 2015, we sold certain royalty and milestone payment rights from the
sales of Zalviso in the European Union by our former commercial partner,
Grünenthal, pursuant to the Collaboration and License Agreement, dated as of
December 16, 2013, as amended, to PDL for an upfront cash purchase price of
$65.0 million. Under the relevant accounting guidance, because of our
significant continuing involvement, the Royalty Monetization has been accounted
for as a liability that will be amortized using the effective interest method
over the life of the arrangement. In order to determine the amortization of the
liability, we are required to estimate the total amount of future royalty and
milestone payments to be received by ARPI LLC and paid to PDL, up to a capped
amount of $195.0 million, over the life of the arrangement. The aggregate future
estimated royalty and milestone payments (subject to the capped amount), less
the $61.2 million of net proceeds we received, are recorded as interest expense
over the life of the liability. Consequently, we impute interest on the
unamortized portion of the liability and record interest expense related to the
Royalty Monetization accordingly.



During the three months ended June 30, 2020, Grünenthal notified us that it was
terminating the Amended License Agreement, effective November 13, 2020. The
terms of the Grünenthal Agreements were extended to May 2021 to enable
Grünenthal to sell down its Zalviso inventory, a right it had under the
Grünenthal Agreements. The rights to market and sell Zalviso in the Territory
revert back to us in May 2021.



There is a continuing obligation on our part, through the term of the Royalty
Monetization, to use commercially reasonable efforts to negotiate a replacement
license agreement, or New Arrangement. However, without a New Arrangement to
commercialize Zalviso in Europe, we are currently unable to reliably estimate
the future payments to PDL over the remaining life of the Royalty Monetization.
If we are unable to find a New Arrangement, a contingent gain of up to
approximately $65 million may be recognized when it is realized upon expiration
of the liability at the end of the Royalty Monetization term. Due to the
significant judgments and factors related to the estimates of future payments
under the Royalty Monetization, there are significant uncertainties surrounding
the amount and timing of future payments and the probability of realization of
the estimated contingent gain.



We will record non-cash royalty revenues and non-cash interest (income) expense
within our Consolidated Statements of Comprehensive Loss over the term of the
Royalty Monetization.



When the expected payments under the Royalty Monetization are lower than the
gross proceeds of $65.0 million received, we defer recognition of any probable
contingent gain until the Royalty Monetization liability expires.



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Results of Operations



Our results of operations have fluctuated from period to period and may continue
to fluctuate in the future, based upon the progress of our commercial launch of
DSUVIA, our research and development efforts, variations in the level of
expenditures related to commercial launch, development efforts and debt service
obligations during any given period, and the uncertainty as to the extent and
magnitude of the impact from the COVID-19 pandemic. Results of operations for
any period may be unrelated to results of operations for any other period. In
addition, historical results should not be viewed as indicative of future
operating results. In particular, to the extent our commercial and medical
affairs personnel continue to be subject to varying levels of restriction on
accessing hospitals and ambulatory surgical centers due to COVID-19, and to the
extent government authorities and healthcare providers are continuing to limit
elective surgeries, we expect our sales volume to be adversely affected.



Years Ended December 31, 2020 and 2019





Revenue



Product Sales Revenue


Product sales revenue consists of sales of DSUVIA in the U.S. and Zalviso in Europe.

Product sales revenue by product for the years ended December 31, 2020 and 2019, was as follows (in thousands, except percentages):





                                  Years Ended
                                 December 31,            $ Change            % Change
                               2020        2019        2020 vs. 2019       2020 vs. 2019
DSUVIA                        $ 1,409     $   377     $         1,032                 274 %
Zalviso                         1,112       1,453                (341 )               (23 )%
Total product sales revenue   $ 2,521     $ 1,830     $           691                  38 %



The increase in DSUVIA product sales revenue for the year ended December 31, 2020, as compared to the prior year, is primarily due to DoD purchases of DSUVIA.





The decrease in Zalviso product sales revenue for the year ended December 31,
2020, as compared to the prior year, was primarily the result of decreased
orders from Grünenthal. As of December 31, 2020, we had current deferred revenue
under the Grünenthal Agreements of $49.0 thousand.



Contract and Other Collaboration Revenue





Contract and other collaboration revenue includes revenue under the Grünenthal
Agreements related to research and development services, non-cash royalty
revenue related to the Royalty Monetization and royalty revenue for sales of
Zalviso in Europe.


Contract and other collaboration revenue for the years ended December 31, 2020 and 2019, was as follows (in thousands, except percentages):







                                               Years Ended
                                              December 31,               $ Change            % Change
                                           2020           2019         2020 vs. 2019       2020 vs. 2019
Non-cash royalty revenue related to
Royalty Monetization (See Note 8)       $      242     $      312     $           (70 )               (22 )%
Royalty revenue                                 81            104                 (23 )               (22 )%
Other revenue                                2,572             43               2,529               5,881 %
Total contract and other
collaboration revenue                   $    2,895     $      459     $         2,436                 531 %



We estimate and recognize royalty revenue and non-cash royalty revenue on a quarterly basis. Adjustments to estimated revenue are recognized in the subsequent quarter based on actual revenue earned per the royalty reports received from Grünenthal. In addition, under the Royalty Monetization, we sold a portion of the expected royalty stream and commercial milestones from the European sales of Zalviso by Grünenthal to PDL. On August 31, 2020, PDL announced it sold its royalty interest for Zalviso to SWK Funding, LLC.


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Cost of goods sold


As mentioned above, we commenced commercial sales of DSUVIA in the first quarter of 2019.

Total costs of goods sold for the years ended December 31, 2020 and 2019, were as follows (in thousands, except percentages):





                                Years Ended
                               December 31,            $ Change            % Change
                             2020        2019        2020 vs. 2019       2020 vs. 2019
Direct costs                $ 1,900     $ 2,525     $          (625 )               (25 )%
Indirect costs                4,132       4,281                (149 )                (3 )%
Total costs of goods sold   $ 6,032     $ 6,806     $          (774 )               (11 )%




Direct costs from contract manufacturers for DSUVIA and Zalviso totaled $1.9
million and $2.5 million in the years ended December 31, 2020 and 2019,
respectively. Direct cost of goods sold for DSUVIA and Zalviso includes the
inventory costs of the active pharmaceutical ingredient, or API, third-party
contract manufacturing costs, estimated warranty costs, packaging and
distribution costs, shipping, handling and storage costs.



We periodically evaluate the carrying value of inventory on hand for potential
excess amounts over demand using the same lower of cost or net realizable value
approach as that used to value the inventory. During the year ended December 31,
2020, we recorded inventory impairment charges of $0.7 million, of which $0.3
million related to the termination of the Grünenthal Agreements, and $0.4
million related to DSUVIA, primarily as a result of inventory that may expire
before being sold. During the year ended December 31, 2019, we recorded an
inventory impairment reserve of approximately $1.0 million as a result of an
analysis to estimate potential DSUVIA inventory that may expire before being
sold. This represented initial DSUVIA batches produced for development and
therefore represented shorter dated product than batches manufactured for
commercial sale.



The indirect costs to manufacture DSUVIA and Zalviso totaled $4.1 million and
$4.3 million in the years ended December 31, 2020 and 2019, respectively.
Indirect costs include internal personnel and related costs for purchasing,
supply chain, quality assurance, depreciation and related expenses. We expect
these indirect costs to represent a smaller percentage of revenue as our product
sales increase.


Research and Development Expenses

The majority of our operating expenses to date have been for research and development activities related to Zalviso and DSUVIA. Research and development expenses included the following:

• expenses incurred under agreements with contract research organizations and

clinical trial sites;

• employee-related expenses, which include salaries, benefits and stock-based


     compensation;

   • payments to third party pharmaceutical and engineering development
     contractors;

   • payments to third party manufacturers;

   • depreciation and other allocated expenses, which include direct and

allocated expenses for rent and maintenance of facilities and equipment, and


     equipment and laboratory and other supply costs; and

   • costs for equipment and laboratory and other supplies.




We expect to incur future research and development expenditures to support the
FDA regulatory review of the Zalviso NDA, once, and if, it is resubmitted. The
timing of the resubmission of the Zalviso NDA is in part dependent on the
finalization of the FDA's new opioid approval guidelines and process.



We track external development expenses on a program-by-program basis. Our
development resources are shared among all our programs. Compensation and
benefits, facilities, depreciation, stock-based compensation, and development
support services are not allocated specifically to projects and are considered
research and development overhead.



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Below is a summary of our research and development expenses for the years ended
December 31, 2020 and 2019, were as follows (in thousands, except percentages):



                                                 Years Ended
                                                December 31,               $ Change            % Change
                                             2020           2019         2020 vs. 2019       2020 vs. 2019
DSUVIA                                    $      812     $      658     $           154                  23 %
Zalviso                                           95            549                (454 )               (83 )%
Overhead                                       3,110          3,454                (344 )               (10 )%

Total research and development expenses $ 4,017 $ 4,661 $


       (644 )               (14 )%




Research and development expenses during the year ended December 31, 2020, as
compared to the year ended December 31, 2019, decreased by $0.6 million
primarily due to decreases in Zalviso-related spending and overhead expenses,
partially offset by increases in DSUVIA-related spending.



Selling, General and Administrative Expenses





Selling, general and administrative expenses consisted primarily of salaries,
benefits and stock-based compensation for personnel engaged in
commercialization, administration, finance and business development activities.
Other significant expenses included allocated facility costs and professional
fees for general legal, audit and consulting services.



Total selling, general and administrative expenses for the years ended
December 31, 2020 and 2019, were as follows (in thousands, except percentages):



                                               Years Ended
                                              December 31,               $ Change            % Change
                                           2020           2019         2020 vs. 2019       2020 vs. 2019
Selling, general and administrative
expenses                                $   36,330     $   45,027     $        (8,697 )               (19 )%




Selling, general and administrative expenses decreased by $8.7 million during
the year ended December 31, 2020, as compared to the year ended December 31,
2019. The decrease is primarily due to net decreases in selling, general and
administrative expenses including a $4.0 million reduction in personnel costs, a
$3.3 million reduction in DSUVIA commercialization-related expenses, and a $1.5
million reduction in travel-related expenses.



In March 2020, we eliminated 30 positions, mainly within the commercial organization. For additional information regarding the Restructuring Costs see Note 1 "Organization and Summary of Significant Accounting Policies" in the accompanying notes to the Consolidated Financial Statements.





Other Income (Expense)


Total other income (expense) for the years ended December 31, 2020 and 2019, was as follows (in thousands, except percentages):





                                               Years Ended
                                              December 31,               $ Change            % Change
                                           2020           2019         2020 vs. 2019       2020 vs. 2019
Interest expense                        $   (3,305 )   $   (2,535 )   $          (770 )                30 %
Interest income and other income
(expense), net                                 583          2,166              (1,583 )               (73 )%
Non-cash interest income (expense) on
liability related to sale of future
royalties                                    3,310          1,337               1,973                 148 %
Total other income (expense)            $      588     $      968     $          (380 )               (39 )%




Interest expense consisted primarily of interest accrued or paid on our debt
obligation agreements and amortization of debt discounts. Interest expense
increased for the year ended December 31, 2020, as compared to the year ended
December 31, 2019, primarily as a result of a higher average outstanding loan
balance. As of December 31, 2020, the accrued balance due under the Loan
Agreement with Oxford was $21.0 million. Refer to Note 6 "Long-Term Debt" in the
accompanying notes to the Consolidated Financial Statements for additional
information.



Interest income and other income (expense), net, for the years ended December
31, 2020 and 2019 primarily consisted of interest earned on our investments. The
decrease in interest income and other income (expense), net, in the year ended
December 31, 2020, compared to the year ended December 31, 2019, was primarily
due to a lower average investment balance, combined with lower yields on those
investments.



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The non-cash interest income (expense) on the liability related to the sale of
future royalties is attributable to the Royalty Monetization that we completed
in September 2015. As described in Note 8 "Liability Related to Sale of Future
Royalties", the Royalty Monetization has been recorded as debt under the
applicable accounting guidance. We periodically assess the expected royalty and
milestone payments using a combination of historical results, internal
projections and forecasts from external sources. To the extent such payments are
greater or less than our initial estimates or the timing of such payments is
materially different than our original estimates, we will prospectively adjust
the amortization of the liability and the interest rate. During the three months
ended June 30, 2019, we made a material revision to our estimates as the
expected payments under the Royalty Monetization are less than the $65.0 million
in gross proceeds received. The change in estimate reduced the effective
interest rate over the life of the liability to 0% by recording interest income
over the remaining term of the arrangement, prospectively, as an offset to the
interest expense that was recognized in prior periods, and resulted in a
decrease of $8.1 million to the net loss for the year ended December 31, 2019.
The effective interest income rate for the years ended December 31, 2020 and
2019, was approximately 3.6% and 1.4%, respectively. We anticipate that we will
record approximately $3 million in non-cash interest income related to the
Royalty Monetization for the year ended December 31, 2021.



Liquidity and Capital Resources





Liquidity



We have incurred losses and generated negative cash flows from operations since
inception. We expect to continue to incur significant losses in 2021 and may
incur significant losses and negative cash flows from operations in the future.
We have funded our operations primarily through issuance of equity securities,
borrowings, payments from our commercial partner, Grünenthal, monetization of
certain future royalties and commercial sales milestones from the European sales
of Zalviso by Grünenthal, funding of approximately $22.6 million from the DoD,
and more recently with revenues from sales of DSUVIA since the commercial launch
in the first quarter of 2019.



As of December 31, 2020, we had cash, cash equivalents and investments totaling
$42.9 million, compared to $66.1 million as of December 31, 2019. The decrease
was primarily due to cash required to fund our continuing operations, including
debt service, as we continued our commercialization activities for DSUVIA and
support for Grünenthal's European sales of Zalviso, as well as business
development activities. We anticipate that our existing capital resources will
permit us to meet our capital and operational requirements for at least the next
twelve months; however, our expectations may change depending on a number of
factors including the extent and magnitude of the impact from the COVID-19
pandemic, in particular the negative impact on sales volumes as our sales force
is limited in its access to potential customers, our expenditures related to the
United States commercial launch of DSUVIA and the timing of business development
activities. Our existing capital resources will not be sufficient to fund our
operations until such time as we may be able to generate sufficient revenues to
sustain our operations.



On July 23, 2020, we completed a registered direct offering in which we issued
and sold 9,433,962 shares of our common stock at a price of $1.06 per share. The
total net proceeds from this offering were approximately $10.0 million.



On December 11, 2020, we completed a registered direct offering in which we issued and sold 8,333,333 shares of our common stock at a price of $1.20 per share. The total net proceeds from this offering were approximately $9.9 million.





On January 22, 2021, we completed an underwritten public offering in which we
issued and sold 14,500,000 shares of our common stock to the underwriter at a
price of $1.7625 per share. On January 27, 2021, the underwriters exercised
their option in full and purchased an additional 2,175,000 shares at a price of
$1.7625 per share. The total net proceeds from this offering of an aggregate
16,675,000 shares were approximately $28.9 million.



We have a Controlled Equity OfferingSM Sales Agreement, or, as amended, the ATM
Agreement, with Cantor Fitzgerald & Co., or Cantor, as agent, pursuant to which
we may offer and sell, from time to time through Cantor, shares of our common
stock. During the year ended December 31, 2020, we issued and sold 876,800
shares of common stock pursuant to the ATM Agreement, for which we received net
proceeds of approximately $1.4 million. As of December 31, 2020, we had the
ability to sell approximately $43.8 million of our common stock under the ATM
Agreement. Subsequent to December 31, 2020, we issued and sold approximately 3.0
million additional shares of common stock and received additional net proceeds
of approximately $7.4 million, after deducting fees and expenses, under the ATM
Agreement. As of March 4, 2021, we had the ability to sell approximately
$36.2 million of our common stock under the ATM Agreement.



On May 30, 2019, we entered into the Loan Agreement with Oxford. Under the Loan
Agreement, we borrowed an aggregate principal amount of $25.0 million under a
term loan and used approximately $8.9 million of the proceeds from the Loan to
repay our outstanding obligations under the Prior Agreement. After deducting all
loan initiation costs and outstanding interest on the Prior Agreement, we
received $15.9 million in net proceeds. As of December 31, 2020, the accrued
balance under the Loan Agreement was $21.0 million. For more information, see
Note 6 "Long-Term Debt" in the accompanying notes to the Consolidated Financial
Statements.



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On May 18, 2020, we received a notice from Grünenthal that it was exercising its
right to terminate the Grünenthal Agreements. The terms of the Grünenthal
Agreements were extended to May 2021 to enable Grünenthal to sell down its
Zalviso inventory. There is a continuing obligation on our part, through the
term of the Royalty Monetization, to use commercially reasonable efforts to
negotiate a New Arrangement. The Royalty Monetization will be repaid to SWK
(assignee of PDL) over the life of the agreement through a portion of the
European royalties and milestones received under the Grünenthal Agreements and
any New Arrangement, if executed. For more information, see Note 8 "Liability
Related to the Sale of Future Royalties" in the accompanying notes to the
Consolidated Financial Statements.



Our cash and investment balances are held in a variety of interest-bearing
instruments, including obligations of commercial paper, corporate debt
securities, U.S. government sponsored enterprise debt securities and money
market funds. Cash in excess of immediate requirements is invested with a view
toward capital preservation and liquidity. We do not expect COVID-19 to have a
material impact on our high quality, short-dated investments.



Cash Flows



                                                        Years Ended December 31,
                                                          2020              2019
Net cash used in operating activities                 $     (38,505 )     $ (51,180 )
Net cash provided by (used in) investing activities          34,139         (36,563 )
Net cash provided by financing activities                    16,956          14,452



Cash Flows from Operating Activities





The primary use of cash for our operating activities during these periods was to
fund commercial readiness activities for our approved product, DSUVIA, and our
product candidate, Zalviso, in addition to the support of Grünenthal's European
sales of Zalviso. Our cash used in operating activities also reflected changes
in our working capital, net of adjustments for non-cash charges, such as
depreciation and amortization of our fixed assets, stock-based compensation,
non-cash interest income (expense) related to the sale of future royalties and
interest expense related to our debt financings.



Cash used in operating activities of $38.5 million during the year ended
December 31, 2020, reflected a net loss of $40.4 million, partially offset by
aggregate non-cash charges of $4.2 million and included an approximate $2.3
million net change in our operating assets and liabilities. Non-cash charges
included $4.4 million for stock-based compensation expense, $3.3 million in
non-cash interest income on the liability related to the Royalty Monetization,
$1.9 million in depreciation expense and $1.1 million in non-cash interest
expense related to debt financing. The net change in our operating assets and
liabilities included a $1.0 million increase in accounts payable and a $3.2
million decrease in deferred revenue.



Cash used in operating activities of $51.2 million during the year ended
December 31, 2019, reflected a net loss of $53.2 million, partially offset by
aggregate non-cash charges of $6.0 million. Non-cash charges included $5.1
million in stock-based compensation expense, $1.7 million in depreciation
expense, a $1.0 million inventory impairment charge and $0.7 million in non-cash
interest income on the liability related to the Royalty Monetization. The net
change in our operating assets and liabilities of $3.9 million included a $3.4
million increase in inventories.



Cash Flows from Investing Activities

Our investing activities have consisted primarily of our capital expenditures and purchases and sales and maturities of our available-for-sale investments.





During the year ended December 31, 2020, cash provided by investing activities
of $34.1 million was the net result of $80.6 million in proceeds from maturity
of investments, offset by $44.6 million for purchases of investments and
purchases of property and equipment of $1.9 million.



During the year ended December 31, 2019, cash used in investing activities of
$36.6 million was the net result of $100.1 million for purchases of investments
and $3.5 million for purchases of property and equipment, offset by $67.0
million in proceeds from maturity of investments.



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Cash Flows from Financing Activities

Cash flows from financing activities primarily reflect proceeds from the sale of our securities and payments made on debt financings.





During the year ended December 31, 2020, cash provided by financing activities
was primarily due to $21.3 million in net proceeds received in connection with
equity financings, and $0.4 million in net proceeds received through our equity
plans, partially offset by $4.7 million used for payment of long-term debt.



During the year ended December 31, 2019, cash provided by financing activities
was primarily due to $24.8 million in net proceeds received in connection with
the Loan Agreement with Oxford, offset by $8.9 million for the repayment of the
Prior Agreement, $3.5 million in payments of long-term debt under the Prior
Agreement, plus $1.2 million in net proceeds received under the Sales Agreement
and $0.8 million in proceeds as a result of stock purchases made under our 2011
Employee Stock Purchase Plan, or ESPP, and stock option exercises.



Operating Capital and Capital Expenditure Requirements





Our current operating plan includes expenditures related to the continued launch
of DSUVIA in the United States. This plan includes an assumption that COVID-19
related restrictions on access to potential customers and elective surgeries
will continue to be lifted, as well as anticipated activities required to
resubmit the Zalviso NDA. These assumptions may change as a result of many
factors. We will continue to evaluate the work necessary to successfully launch
DSUVIA and gain approval of Zalviso in the United States and intend to update
our cash forecasts accordingly. Our forecast that our existing capital resources
will permit us to meet our capital and operational requirements for at least the
next twelve months is a forward-looking statement that involves risks and
uncertainties, and actual results could vary materially.



Our future capital requirements may vary materially from our expectations based on numerous factors, including, but not limited to, the following:





   • the accuracy of our estimates regarding the sufficiency of our cash
     resources and expenses;

   • the impact and timing of COVID-19 on our operations, our sales

representatives' access to hospitals or other healthcare facilities, and our

level of sales;

• expenditures related to the launch of DSUVIA and potential commercialization

of Zalviso;

• future manufacturing, selling and marketing costs related to DSUVIA and

Zalviso, including our contractual obligations to Grünenthal or another


     third party for Zalviso;

   • costs associated with business development activities and licensing
     transactions;

• the outcome, timing and cost of the regulatory resubmission of Zalviso and


     any approval for Zalviso;

   • the initiation, progress, timing and completion of any post-approval
     clinical trials for DSUVIA, or Zalviso, if approved;

• changes in the focus and direction of our business strategy and/or research

and development programs;

• milestone and royalty revenue we receive under our collaborative development


     and commercialization arrangements;

   • delays that may be caused by changing regulatory requirements;

   • the costs involved in filing and prosecuting patent applications and
     enforcing and defending patent claims;

• the timing and terms of future in-licensing and out-licensing transactions;

• the cost and timing of establishing sales, marketing, manufacturing and


     distribution capabilities;

   • the cost of procuring clinical and commercial supplies of DSUVIA and
     Zalviso;

   • the extent to which we acquire or invest in businesses, products or
     technologies; and

   • the expenses associated with any possible litigation.




In the long-term, our existing capital resources will not be sufficient to fund
our operations until such time as we may be able to generate sufficient revenues
to sustain our operations. We will have to raise additional funds through the
sale of our equity securities, monetization of current and future assets,
issuance of debt or debt-like securities or from development and licensing
arrangements to sustain our operations and continue our development programs.



Please see "Part I., Item 1A. Risk Factors-Risks Related to Our Financial Condition and Need for Additional Capital."


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Off-Balance Sheet Arrangements

Through December 31, 2020, we have not entered into any off-balance sheet arrangements and do not have any holdings in variable interest entities.

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