Last Updated: May 3, 2026

LANTRISUL Drug Patent Profile

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

Lantrisul is a drug marketed by Lannett and is included in one NDA.

The generic ingredient in LANTRISUL is trisulfapyrimidines (sulfadiazine;sulfamerazine;sulfamethazine). Additional details are available on the trisulfapyrimidines (sulfadiazine;sulfamerazine;sulfamethazine) profile page.

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Summary for LANTRISUL

US Patents:	0
Applicants:	1
NDAs:	1

US Patents and Regulatory Information for LANTRISUL

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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
Lannett	LANTRISUL	trisulfapyrimidines (sulfadiazine;sulfamerazine;sulfamethazine)	SUSPENSION;ORAL	080123-002	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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