Last Updated: June 9, 2026

AMITIZA Drug Patent Profile


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When do Amitiza patents expire, and when can generic versions of Amitiza launch?

Amitiza is a drug marketed by Sucampo Pharma Llc and is included in one NDA. There are three patents protecting this drug and one Paragraph IV challenge.

This drug has twenty patent family members in fifteen countries.

The generic ingredient in AMITIZA is lubiprostone. There are ten drug master file entries for this compound. Nineteen suppliers are listed for this compound. Additional details are available on the lubiprostone profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Amitiza

A generic version of AMITIZA was approved as lubiprostone by AMNEAL on November 30th, 2021.

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Recent Clinical Trials for AMITIZA

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SponsorPhase
TakedaPhase 2
Sucampo Pharma Americas, LLCPhase 2
Sucampo AGPhase 2

See all AMITIZA clinical trials

Pharmacology for AMITIZA
Paragraph IV (Patent) Challenges for AMITIZA
Tradename Dosage Ingredient Strength NDA ANDAs Submitted Submissiondate
AMITIZA Capsules lubiprostone 8 mcg and 24 mcg 021908 1 2012-08-20

US Patents and Regulatory Information for AMITIZA

AMITIZA is protected by three US patents.

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Sucampo Pharma Llc AMITIZA lubiprostone CAPSULE;ORAL 021908-002 Apr 29, 2008 AB RX Yes No ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
Sucampo Pharma Llc AMITIZA lubiprostone CAPSULE;ORAL 021908-001 Jan 31, 2006 AB RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
Sucampo Pharma Llc AMITIZA lubiprostone CAPSULE;ORAL 021908-002 Apr 29, 2008 AB RX Yes No ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
Sucampo Pharma Llc AMITIZA lubiprostone CAPSULE;ORAL 021908-002 Apr 29, 2008 AB RX Yes No ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
Sucampo Pharma Llc AMITIZA lubiprostone CAPSULE;ORAL 021908-001 Jan 31, 2006 AB RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

Expired US Patents for AMITIZA

Applicant Tradename Generic Name Dosage NDA Approval Date Patent No. Patent Expiration
Sucampo Pharma Llc AMITIZA lubiprostone CAPSULE;ORAL 021908-001 Jan 31, 2006 ⤷  Start Trial ⤷  Start Trial
Sucampo Pharma Llc AMITIZA lubiprostone CAPSULE;ORAL 021908-001 Jan 31, 2006 ⤷  Start Trial ⤷  Start Trial
Sucampo Pharma Llc AMITIZA lubiprostone CAPSULE;ORAL 021908-001 Jan 31, 2006 ⤷  Start Trial ⤷  Start Trial
Sucampo Pharma Llc AMITIZA lubiprostone CAPSULE;ORAL 021908-001 Jan 31, 2006 ⤷  Start Trial ⤷  Start Trial
Sucampo Pharma Llc AMITIZA lubiprostone CAPSULE;ORAL 021908-002 Apr 29, 2008 ⤷  Start Trial ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >Patent No. >Patent Expiration

International Patents for AMITIZA

See the table below for patents covering AMITIZA around the world.

Country Patent Number Title Estimated Expiration
Mexico 2008009650 FORMULACION DE CAPSULA DE GELATINA SUAVE. (SOFT-GELATIN CAPSULE FORMULATION.) ⤷  Start Trial
Portugal 1220849 ⤷  Start Trial
Taiwan I302100 ⤷  Start Trial
Japan S6452753 PROSTAGLANDIN E AND ANTIULCER AGENT CONTAINING SAME ⤷  Start Trial
Japan 2009114217 CATHARTIC COMPOSITION ⤷  Start Trial
>Country >Patent Number >Title >Estimated Expiration

Supplementary Protection Certificates for AMITIZA

Patent Number Supplementary Protection Certificate SPC Country SPC Expiration SPC Description
1315485 122015000080 Germany ⤷  Start Trial PRODUCT NAME: LUBIPROSTON, ODER EIN PHARMAZEUTISCH ANNEHMBARES SALZ DAVON; NAT. REGISTRATION NO/DATE: 92699.00.00 20150519; FIRST REGISTRATION: VEREINIGTES KOENIGREICH PL 21341/0003 20120910
1315485 300757 Netherlands ⤷  Start Trial PRODUCT NAME: LUBIPROSTON; NATIONAL REGISTRATION NO/DATE: RVG 115891; FIRST REGISTRATION NO/DATE: PL21341/0003 20120910
1315485 2015C/048 Belgium ⤷  Start Trial PRODUCT NAME: LUBIPROSTONE; AUTHORISATION NUMBER AND DATE: PL21341/0003 20150317
1315485 C300757 Netherlands ⤷  Start Trial PRODUCT NAME: LUBIPROSTON; NAT. REGISTRATION NO/DATE: RVG 115891 20150317; FIRST REGISTRATION:
1315485 2015/028 Ireland ⤷  Start Trial PRODUCT NAME: LUBIPROSTONE AND PHARMACEUTICALLY ACCEPTABLE SALTS FOR LUBIPROSTONE.; NAT REGISTRATION NO/DATE: PA148/002/001 20150213; FIRST REGISTRATION NO/DATE: PL21341/0003-0001 20120910
>Patent Number >Supplementary Protection Certificate >SPC Country >SPC Expiration >SPC Description

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