Last Updated: August 2, 2026

MICROSUL Drug Patent Profile

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When do Microsul patents expire, and what generic alternatives are available?

Microsul is a drug marketed by Forest Pharms and is included in one NDA.

The generic ingredient in MICROSUL is sulfamethizole. There are four drug master file entries for this compound. Additional details are available on the sulfamethizole profile page.

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Summary for MICROSUL

US Patents:	0
Applicants:	1
NDAs:	1

US Patents and Regulatory Information for MICROSUL

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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
Forest Pharms	MICROSUL	sulfamethizole	TABLET;ORAL	086012-001	Approved Prior to Jan 1, 1982		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

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