Last Updated: September 28, 2026

TIAMATE Drug Patent Profile

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

Tiamate is a drug marketed by Merck and is included in one NDA.

The generic ingredient in TIAMATE is diltiazem malate. Additional details are available on the diltiazem malate profile page.

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Summary for TIAMATE

US Patents:	0
Applicants:	1
NDAs:	1

US Patents and Regulatory Information for TIAMATE

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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
Merck	TIAMATE	diltiazem malate	TABLET, EXTENDED RELEASE;ORAL	020506-001	Oct 4, 1996		DISCN	No	No	⤷ Start Trial	⤷ Start Trial				⤷ Start Trial
Merck	TIAMATE	diltiazem malate	TABLET, EXTENDED RELEASE;ORAL	020506-002	Oct 4, 1996		DISCN	No	No	⤷ Start Trial	⤷ Start Trial				⤷ Start Trial
Merck	TIAMATE	diltiazem malate	TABLET, EXTENDED RELEASE;ORAL	020506-003	Oct 4, 1996		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

International Patents for TIAMATE

See the table below for patents covering TIAMATE around the world.

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Country	Patent Number	Title	Estimated Expiration
Austria	73322		⤷ Start Trial
Australia	2277388		⤷ Start Trial
Australia	604564		⤷ Start Trial
Canada	1320885	POMPE OSMOTIQUE A POROSITE CONTROLEE (CONTROLLED POROSITY OSMOTIC PUMP)	⤷ Start Trial
Germany	3869032		⤷ Start Trial
>Country	>Patent Number	>Title	>Estimated Expiration

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