Allergan : Form of prospectus disclosing information, facts, events covered in both forms 424B2, 424B3

Table of Contents

Filed Pursuant to Rule 424(b)(5)

Registration Statement No. 333- 223089,

333-223089-01,

333-223089-02,

333-223089-03,

333-223089-04

The information in this preliminary prospectus supplement and the accompanying prospectus is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these securities and are not soliciting an offer to buy these securities in any jurisdiction where the offer or sale is not permitted.

Subject to completion, dated November 8, 2018. Preliminary Prospectus Supplement

(To prospectus dated February 16, 2018)

€

Allergan Funding SCS

€ €

€

% Notes due 2023 % Notes due 2028 Floating Rate Notes due 2020

Guaranteed by

Warner Chilcott Limited, Allergan Capital S.à r.l. and Allergan Finance, LLC

Allergan Funding SCS, a limited partnership (société en commandite simple) organized under the laws of the Grand Duchy of Luxembourg ("Allergan SCS" or "we") and an indirect subsidiary of Allergan plc, is offering its % Notes due 2023 (the "2023 notes") and % Notes due 2028 (the "2028 notes" and, collectively with the 2023 notes, the "fixed rate notes") and may offer its Floating Rate Notes, if any, due 2020 (the "floating rate notes"). We refer to the floating rate notes, if any, and the fixed rate notes collectively as the "notes."

Interest on the fixed rate notes will be payable annually on of each year, beginning on , 2019. The floating rate notes, if any, will bear interest at a floating rate equal to the three-month Euro Interbank Offered Rate ("EURIBOR") plus % per annum payable quarterly on , , and of each year, beginning on , 2019. The notes will be issued only in minimum denominations of €100,000 and multiples of €1,000 in excess thereof. The notes will be fully and unconditionally guaranteed by our indirect parents, Warner Chilcott Limited ("Warner Chilcott") and Allergan Capital S.à r.l. ("Allergan Capital"), and by Allergan Finance, LLC, a subsidiary of Allergan Capital ("Allergan Finance" and, together with Warner Chilcott and Allergan Capital, the "guarantors") on an unsecured and unsubordinated basis. Allergan plc will not guarantee the notes.

The notes will be our unsecured and unsubordinated obligations and will rank equally in right of payment with all of our and the guarantors' other unsecured and unsubordinated indebtedness from time to time outstanding. See "Description of the Notes-Ranking."

We intend to use the net proceeds of this offering for general corporate purposes, which may include funding the purchase and retirement of debt in open market transactions through full or partial redemptions or otherwise.

We may redeem the fixed rate notes, in whole or in part, at any time or from time to time at the applicable redemption prices described under the heading "Description of the Notes-Optional redemption" in this prospectus supplement. Upon the occurrence of a Change of Control Triggering Event (as defined herein), each holder of the notes will have the right to require us to purchase all or a portion of such holder's notes at a price equal to 101% of the aggregate principal amount of such notes, plus accrued and unpaid interest to but excluding the date of purchase.

Investing in the notes involves risks. See "Risk Factors" beginning on page S-19 of this prospectus supplement and page 6 of the accompanying prospectus.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of the notes or determined that this prospectus supplement or the accompanying prospectus is accurate or complete. Any representation to the contrary is a criminal offense.

Public Offering	Underwriting	Proceeds to Allergan
Price(1)	Discount	Funding SCS(2)

Per 2023 note Total

%%%

€

€

€

Per 2028 note Total

%%

€

€

€

Per floating rate note

%%

% %

Total

€

€

€

Total

€€€

• (1) Plus accrued interest, if any, from , 2018.

• (2) Before deducting expenses payable by us related to this offering, estimated at €

million.

The notes are new issues of securities with no established trading market. We intend to apply to list one or more series of the notes on the New York Stock Exchange (the "NYSE"). The listing application will be subject to approval by the NYSE. We currently expect trading in each series of the notes on the NYSE to begin within 30 days after the original issue date. If such a listing is obtained, we have no obligation to maintain such listing, and we may delist any series of the notes at any time.

The underwriters expect to deliver the notes to purchasers through the book-entry delivery system of Clearstream Banking, S.A. Luxembourg ("Clearstream") and Euroclear

Bank S.A./N.V., as operator of the Euroclear System ("Euroclear"), on or about November , 2018.

Joint book-running managers

Barclays	Goldman Sachs & Co. LLC	J.P. Morgan	Morgan Stanley
BNP PARIBAS	BofA Merrill Lynch	Citigroup	HSBC	Mizuho Securities	MUFG

The date of this prospectus supplement is November

, 2018.

Table of Contents
Prospectus Supplement
ABOUT THIS PROSPECTUS SUPPLEMENT	S-1
TRADEMARKS AND TRADE NAMES	S-3
WHERE YOU CAN FIND MORE INFORMATION	S-3
INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE	S-4
CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS	S-6
SUMMARY	S-10
THE OFFERING	S-11
SUMMARY OF HISTORICAL CONSOLIDATED FINANCIAL AND OPERATING DATA	S-16
RISK FACTORS	S-19
USE OF PROCEEDS	S-31
CURRENCY OF PAYMENT	S-32
CAPITALIZATION	S-33
DESCRIPTION OF THE NOTES	S-35
CERTAIN UNITED STATES FEDERAL TAX CONSIDERATIONS	S-57
CERTAIN LUXEMBOURG TAX CONSIDERATIONS	S-62
CERTAIN BERMUDA TAX CONSIDERATIONS	S-66
THE PROPOSED FINANCIAL TRANSACTION TAX	S-67
UNDERWRITING	S-68
LEGAL MATTERS	S-73
EXPERTS	S-73
Prospectus
Page
About this prospectus	3
Where you can find more information	3
Incorporation of certain documents by reference	4
Company overview	5
Risk Factors	6
Cautionary note regarding forward looking statements	6
Ratio of earnings to fixed charges and ratio of earnings to combined fixed charges and preferred dividends	9
Use of proceeds	9
Description of Allergan Funding SCS debt securities	10
Description of Allergan share capital	34

Table of contents

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Table of Contents
Page
Description of Allergan ordinary shares	35
Description of Allergan serial preferred shares	40
Description of Allergan depositary shares	41
Description of Allergan ordinary share warrants	42
Description of Allergan ordinary share purchase contracts and ordinary share purchase units	43
Plan of distribution	44
Legal matters	46
Experts	46
Enforcement of civil liability under United States federal securities laws	47
Certain insolvency considerations under Luxembourg law	48
Certain considerations under Bermuda law	53

We are responsible for the information contained and incorporated by reference in this prospectus supplement, the accompanying prospectus and in any related free writing prospectus we prepare or authorize. We have not, and the underwriters have not, authorized anyone to provide you with any other information, and we and the underwriters take no responsibility for any other information that others may give you. Neither we nor the underwriters are making an offer to sell these securities in any jurisdiction where the offer or sale is not permitted. You should not assume that the information contained or incorporated by reference in this prospectus supplement, the accompanying prospectus or in any related free writing prospectus is accurate as of any date other than the date of the document containing such information.

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About this prospectus supplement

This document is in two parts. The first part is this prospectus supplement, which describes certain matters relating to us and this offering of the notes and also adds to and updates information contained in the accompanying prospectus and the documents incorporated by reference into the accompanying prospectus. The second part, the accompanying prospectus, dated February 16, 2018, gives more general information about us and the securities we may offer from time to time under our shelf registration statement, some of which may not apply to this offering of the notes. If the description of this offering of the notes in the accompanying prospectus is different from the description in this prospectus supplement, you should rely on the information contained in this prospectus supplement.

You should read this prospectus supplement, the accompanying prospectus and the documents incorporated by reference into this prospectus supplement and the accompanying prospectus in their entirety, including the additional information described under "Where you can find more information" and "Incorporation of certain documents by reference" in this prospectus supplement before deciding whether to invest in the notes offered by this prospectus supplement.

You should not consider any information in this prospectus supplement or the accompanying prospectus to be investment, legal or tax advice. You should consult your own counsel, accountants and other advisers for legal, tax, business, financial and related advice regarding the purchase of the notes offered by this prospectus supplement.

Unless indicated otherwise, or the context otherwise requires, references in this document to "Allergan SCS," "issuer," "we," "us," and "our" are to Allergan Funding SCS, references to "the Company" are to Allergan plc and its consolidated subsidiaries and references to "Allergan plc" are only to Allergan plc and not any of its subsidiaries. References to "euros" and "€" are to the currency of the member states of the European Monetary Union that have adopted or that adopt the single currency in accordance with the treaty establishing the European Community, as amended by the Treaty on European Union. No representation is made that any euro amounts converted into United States dollars as presented in this prospectus supplement could have been or could be converted into United States dollars at any such exchange rate or at all. The financial information presented in this prospectus supplement and the accompanying prospectus has been prepared in accordance with generally accepted accounting principles in the United States ("U.S. GAAP").

We are offering the notes globally for sale in those jurisdictions in the United States, Canada, Europe, Asia and elsewhere where it is lawful to make such offers. The distribution of this prospectus supplement and the accompanying prospectus and the offering of the notes in certain jurisdictions may be restricted by law. Persons who receive this prospectus supplement and the accompanying prospectus should inform themselves about and observe any such restrictions. This prospectus supplement and the accompanying prospectus do not constitute, and may not be used in connection with, an offer or solicitation by anyone in any jurisdiction in which such offer or solicitation is not authorized or in which the person making such offer or solicitation is not qualified to do so or to any person to whom it is unlawful to make such offer or solicitation. See the "Underwriting" section beginning on page S-68 of this prospectus supplement.

Notice to Prospective Investors in the European Economic Area

Neither this prospectus supplement nor the accompanying prospectus is a prospectus for the purposes of the Prospectus Directive (as defined below).

This prospectus supplement and the accompanying prospectus have been prepared on the basis that any offer of notes in any Member State of the EEA which has implemented the Prospectus Directive (each, a "Relevant Member State") will only be made to a legal entity which is a qualified investor under the Prospectus Directive ("Qualified Investors"). Accordingly, any person making or intending to make an offer in that Relevant Member State of notes which are the subject of the offering contemplated in this prospectus supplement and the accompanying prospectus may only do so with respect to Qualified Investors. Neither we nor the guarantors nor

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the underwriters have authorized, nor do they authorize, the making of any offer of notes other than to Qualified Investors. The expression "Prospectus Directive" means Directive 2003/71/EC (as amended, including by Directive 2010/73/EU), and includes any relevant implementing measure in the Relevant Member State.

PRIIPs and Prospectus Directive

The notes are not intended to be offered, sold, exchanged or otherwise made available to and should not be offered, sold, exchanged or otherwise made available to any retail investor in the European Economic Area (the "EEA"). For these purposes, a retail investor means a person who is one (or more) of: (i) a retail client as defined in point (11) of Article 4(1) of Directive 2014/65/EU, as amended ("MiFID II"); or (ii) a customer within the meaning of Directive 2002/92/EC, as amended (the "Insurance Mediation Directive"), where that customer would not qualify as a professional client as defined in point (10) of Article 4(1) of MiFID II; or (iii) not a qualified investor as defined in the Prospectus Directive.

Consequently no key information document required by Regulation (EU) No 1286/2014, as amended (the "PRIIPs Regulation") for offering or selling the notes or otherwise making them available to retail investors in the EEA has been prepared and therefore offering or selling the notes or otherwise making them available to any retail investor in the EEA may be unlawful under the PRIIPs Regulation.

MiFID II Product Governance / Professional Investors and ECPs Only Target Market

Solely for the purposes of each manufacturer's product approval process, the target market assessment in respect of the notes has led to the conclusion that: (i) the target market for the notes is eligible counterparties and professional clients only, each as defined in MiFID II and (ii) all channels for distribution of the notes to eligible counterparties and professional clients are appropriate. Any person subsequently offering, selling or recommending the notes (a "distributor") should take into consideration the manufacturers' target market assessment; however, a distributor subject to MiFID II is responsible for undertaking its own target market assessment in respect of the notes (by either adopting or refining the manufacturers' target market assessment) and determining appropriate distribution channels.

Notice to Prospective Investors in the United Kingdom

The communication of this prospectus supplement, the accompanying prospectus and any other document or materials relating to the issue of the notes offered hereby is not being made, and the contents of such documents and/or materials have not been approved, by an authorized person for the purposes of section 21 of the United Kingdom's Financial Services and Markets Act 2000, as amended (the "FSMA"). Accordingly, such documents and/or materials are not being distributed to or otherwise communicated with, and must not be passed on to, any person in the United Kingdom except in circumstances in which section 21(1) of FSMA will not apply. The communication of such documents and/or materials as a financial promotion is only being made to those persons in the United Kingdom who have professional experience in matters relating to investments and who fall within the definition of investment professionals (as defined in Article 19(5) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005, as amended (the "Financial Promotion Order")), or who fall within Article 49(2)(a) to (d) of the Financial Promotion Order, or who are any other persons to whom it may otherwise lawfully be communicated or caused to be communicated (all such persons together being referred to as "relevant persons"). In the United Kingdom, the notes offered hereby are only available to, and any investment or investment activity to which this prospectus supplement and the accompanying prospectus relate will be engaged in only with, relevant persons. Any person in the United Kingdom that is not a relevant person should not act or rely on this prospectus supplement or the accompanying prospectus or any of their contents.

Benchmark Administrator

Amounts payable under the floating rate notes bear interest at a variable rate based on the Euro Interbank Offered Rate ("EURIBOR"). EURIBOR is a benchmark rate produced by the European Money Markets Institute (the "EMMI"). As at the date of this prospectus supplement, the EMMI does not appear on the register of

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