Last Updated: November 8, 2026

THALITONE Drug Patent Profile

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When do Thalitone patents expire, and what generic alternatives are available?

Thalitone is a drug marketed by Casper Pharma Llc and Monarch Pharms and is included in two NDAs.

The generic ingredient in THALITONE is chlorthalidone. There is one drug master file entry for this compound. Thirty-eight suppliers are listed for this compound. Additional details are available on the chlorthalidone profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Thalitone

A generic version of THALITONE was approved as chlorthalidone by SUN PHARM INDUSTRIES on July 21st, 1986.

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Summary for THALITONE
Recent Clinical Trials for THALITONE

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SponsorPhase
Anthony J Viera, MD, MPHN/A
North Carolina Translational and Clinical Sciences InstituteN/A
Virginia Commonwealth UniversityPhase 4

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Pharmacology for THALITONE
Drug ClassThiazide-like Diuretic
Physiological EffectIncreased Diuresis

US Patents and Regulatory Information for THALITONE

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Casper Pharma Llc THALITONE chlorthalidone TABLET;ORAL 019574-001 Dec 20, 1988 RX Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Casper Pharma Llc THALITONE chlorthalidone TABLET;ORAL 019574-002 Feb 12, 1992 DISCN Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Monarch Pharms THALITONE chlorthalidone TABLET;ORAL 088051-001 Nov 12, 1982 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 THALITONE

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

Country Patent Number Title Estimated Expiration
Austria 31024 ⤷  Start Trial
Australia 2569684 ⤷  Start Trial
Australia 562929 ⤷  Start Trial
Canada 1212329 DISPERSIONS DE CHLORTHALIDONE (CHLORTHALIDONE DISPERSIONS) ⤷  Start Trial
German Democratic Republic 220225 VERFAHREN ZUR HERSTELLUNG EINER FESTKOERPERDISPERSION VON CHLORTHALIDON ⤷  Start Trial
Germany 3467707 ⤷  Start Trial
>Country >Patent Number >Title >Estimated Expiration

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