Last Updated: September 24, 2026

PENBUTOLOL SULFATE - Generic Drug Details

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

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What are the generic sources for penbutolol sulfate and what is the scope of freedom to operate?

Penbutolol sulfate is the generic ingredient in one branded drug marketed by Endo Operations and is included in one NDA. Additional information is available in the individual branded drug profile pages.

Summary for PENBUTOLOL SULFATE

US Patents:	0
Tradenames:	1
Applicants:	1
NDAs:	1
Raw Ingredient (Bulk) Api Vendors:	53
DailyMed Link:	PENBUTOLOL SULFATE at DailyMed

Medical Subject Heading (MeSH) Categories for PENBUTOLOL SULFATE

Adrenergic beta-Antagonists
Antihypertensive Agents

Anatomical Therapeutic Chemical (ATC) Classes for PENBUTOLOL SULFATE

C07AA	Beta blocking agents, non-selective
C07A	BETA BLOCKING AGENTS
C07	BETA BLOCKING AGENTS
C	Cardiovascular system

US Patents and Regulatory Information for PENBUTOLOL SULFATE

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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
Endo Operations	LEVATOL	penbutolol sulfate	TABLET;ORAL	018976-004	Jan 5, 1989		DISCN	Yes	No	⤷ Start Trial	⤷ Start Trial				⤷ Start Trial
Endo Operations	LEVATOL	penbutolol sulfate	TABLET;ORAL	018976-001	Dec 30, 1987		DISCN	Yes	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.