Last Updated: September 28, 2026

LOESTRIN 21 1 Drug Patent Profile

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When do Loestrin 21 1 patents expire, and what generic alternatives are available?

Loestrin 21 1 is a drug marketed by Teva Branded Pharm and is included in two NDAs.

The generic ingredient in LOESTRIN 21 1 is ethinyl estradiol; norethindrone acetate. Twenty-five suppliers are listed for this compound. Additional details are available on the ethinyl estradiol; norethindrone acetate profile page.

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Summary for LOESTRIN 21 1

US Patents:	0
Applicants:	1
NDAs:	2

US Patents and Regulatory Information for LOESTRIN 21 1

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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
Teva Branded Pharm	LOESTRIN 21 1.5/30	ethinyl estradiol; norethindrone acetate	TABLET;ORAL-21	017875-001	Approved Prior to Jan 1, 1982		DISCN	Yes	No	⤷ Start Trial	⤷ Start Trial				⤷ Start Trial
Teva Branded Pharm	LOESTRIN 21 1/20	ethinyl estradiol; norethindrone acetate	TABLET;ORAL-21	017876-001	Approved Prior to Jan 1, 1982		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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