Last Updated: September 24, 2026

HYDRAMINE Drug Patent Profile

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

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Which patents cover Hydramine, and when can generic versions of Hydramine launch?

Hydramine is a drug marketed by Alpharma Us Pharms and is included in two NDAs.

The generic ingredient in HYDRAMINE is diphenhydramine hydrochloride. There is one drug master file entry for this compound. Twenty suppliers are listed for this compound. Additional details are available on the diphenhydramine hydrochloride profile page.

DrugPatentWatch^® Litigation and Generic Entry Outlook for Hydramine

A generic version of HYDRAMINE was approved as diphenhydramine hydrochloride by WEST-WARD PHARMS INT on December 31^st, 1969.

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Summary for HYDRAMINE

US Patents:	0
Applicants:	1
NDAs:	2
Raw Ingredient (Bulk) Api Vendors:	136
Clinical Trials:	1
DailyMed Link:	HYDRAMINE at DailyMed

Drug patent expirations by year for HYDRAMINE

Recent Clinical Trials for HYDRAMINE

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Sponsor	Phase
Hamad Medical Corporation	Phase 4

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US Patents and Regulatory Information for HYDRAMINE

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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
Alpharma Us Pharms	HYDRAMINE	diphenhydramine hydrochloride	ELIXIR;ORAL	080763-002	Approved Prior to Jan 1, 1982		DISCN	No	No	⤷ Start Trial	⤷ Start Trial				⤷ Start Trial
Alpharma Us Pharms	HYDRAMINE	diphenhydramine hydrochloride	SYRUP;ORAL	070205-001	Jan 28, 1986		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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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.