Last Updated: September 24, 2026

ALAMAST Drug Patent Profile

Name: ALAMAST Drug Patent, Exclusivity, and Generic Launch Dataset
Creator: DrugPatentWatch
License: https://www.drugpatentwatch.com/terms.php

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Which patents cover Alamast, and what generic alternatives are available?

Alamast is a drug marketed by Santen and is included in one NDA.

The generic ingredient in ALAMAST is pemirolast potassium. There is one drug master file entry for this compound. Additional details are available on the pemirolast potassium profile page.

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Summary for ALAMAST

US Patents:	0
Applicants:	1
NDAs:	1
Raw Ingredient (Bulk) Api Vendors:	54
Patent Applications:	1,210
DailyMed Link:	ALAMAST at DailyMed

Drug patent expirations by year for ALAMAST

US Patents and Regulatory Information for ALAMAST

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Glossary

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Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Santen	ALAMAST	pemirolast potassium	SOLUTION/DROPS;OPHTHALMIC	021079-001	Sep 24, 1999		DISCN	No	No	⤷ Start Trial	⤷ Start Trial				⤷ Start Trial
>Applicant	>Tradename	>Generic Name	>Dosage	>NDA	>Approval Date	>TE	>Type	>RLD	>RS	>Patent No.	>Patent Expiration	>Product	>Substance	>Delist Req.	>Exclusivity Expiration

International Patents for ALAMAST

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

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Country	Patent Number	Title	Estimated Expiration
Australia	2905689		⤷ Start Trial
Australia	610979		⤷ Start Trial
Germany	3882042		⤷ Start Trial
Denmark	418889		⤷ Start Trial
European Patent Office	0348527	ANTIALLERGIC EYE DROP	⤷ Start Trial
>Country	>Patent Number	>Title	>Estimated Expiration

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Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.