Last Updated: June 17, 2026

ERGAMISOL Drug Patent Profile

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

Ergamisol is a drug marketed by Janssen Pharma and is included in one NDA.

The generic ingredient in ERGAMISOL is levamisole hydrochloride. There are three drug master file entries for this compound. Additional details are available on the levamisole hydrochloride profile page.

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Summary for ERGAMISOL

US Patents:	0
Applicants:	1
NDAs:	1

US Patents and Regulatory Information for ERGAMISOL

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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
Janssen Pharma	ERGAMISOL	levamisole hydrochloride	TABLET;ORAL	020035-001	Jun 18, 1990		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 ERGAMISOL

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

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Country	Patent Number	Title	Estimated Expiration
France	2196172		⤷ Start Trial
Belgium	803718		⤷ Start Trial
Germany	2340632		⤷ Start Trial
Philippines	9277	METHOD OF AIDING THE REGRESSION OF NEOPLASTIC DISEASE WITH 2,3,5,6-TETRAHYDRO-6-PHENYLIMIDAZO(2,1-B)THIAZOLE	⤷ Start Trial
Australia	5910573		⤷ Start Trial
South Africa	7305606		⤷ Start Trial
>Country	>Patent Number	>Title	>Estimated Expiration

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