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Last Updated: December 31, 2025

Competitive Generic Therapies: Off-Patent Drugs With 1-4 Sources

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This table lists drugs which, despite having no patents or regulatory protections, have a limited number of active sources.

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Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Strength
Lupin Ltd	ABACAVIR SULFATE, LAMIVUDINE AND ZIDOVUDINE	abacavir sulfate; lamivudine; zidovudine	TABLET;ORAL	202912-001	Dec 5, 2013		RX	No	Yes	EQ 300MG BASE;150MG;300MG
Bionpharma	ACAMPROSATE CALCIUM	acamprosate calcium	TABLET, DELAYED RELEASE;ORAL	219904-001	Sep 18, 2025	AB	RX	No	No	333MG
Glenmark Pharms Ltd	ACAMPROSATE CALCIUM	acamprosate calcium	TABLET, DELAYED RELEASE;ORAL	202229-001	Jul 16, 2013	AB	RX	No	No	333MG
Mylan	ACAMPROSATE CALCIUM	acamprosate calcium	TABLET, DELAYED RELEASE;ORAL	200142-001	Mar 11, 2014	AB	RX	No	No	333MG
>Applicant	>Tradename	>Generic Name	>Dosage	>NDA	>Approval Date	>TE	>Type	>RLD	>RS	>Strength

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