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Last Updated: March 19, 2026

PROMETH W Drug Patent Profile

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

Prometh W is a drug marketed by G And W Labs Inc and is included in one NDA.

The generic ingredient in PROMETH W is dextromethorphan hydrobromide; promethazine hydrochloride. There are twenty-three drug master file entries for this compound. Thirteen suppliers are listed for this compound. Additional details are available on the dextromethorphan hydrobromide; promethazine hydrochloride profile page.

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Summary for PROMETH W

US Patents:	0
Applicants:	1
NDAs:	1

US Patents and Regulatory Information for PROMETH W

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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
G And W Labs Inc	PROMETH W/ DEXTROMETHORPHAN	dextromethorphan hydrobromide; promethazine hydrochloride	SYRUP;ORAL	088762-001	Oct 31, 1984		DISCN	No	No	⤷ Get Started Free	⤷ Get Started Free				⤷ Get Started Free
>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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