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Last Updated: April 18, 2024

ZYFLO CR Drug Patent Profile


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When do Zyflo Cr patents expire, and when can generic versions of Zyflo Cr launch?

Zyflo Cr is a drug marketed by Chiesi and is included in one NDA.

The generic ingredient in ZYFLO CR is zileuton. There are eight drug master file entries for this compound. Five suppliers are listed for this compound. Additional details are available on the zileuton profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Zyflo Cr

A generic version of ZYFLO CR was approved as zileuton by RISING on March 17th, 2017.

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US Patents and Regulatory Information for ZYFLO CR

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Chiesi ZYFLO CR zileuton TABLET, EXTENDED RELEASE;ORAL 022052-001 May 30, 2007 DISCN Yes No ⤷  Try a Trial ⤷  Try a Trial ⤷  Try a Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

Expired US Patents for ZYFLO CR

Applicant Tradename Generic Name Dosage NDA Approval Date Patent No. Patent Expiration
Chiesi ZYFLO CR zileuton TABLET, EXTENDED RELEASE;ORAL 022052-001 May 30, 2007 ⤷  Try a Trial ⤷  Try a Trial
Chiesi ZYFLO CR zileuton TABLET, EXTENDED RELEASE;ORAL 022052-001 May 30, 2007 ⤷  Try a Trial ⤷  Try a Trial
Chiesi ZYFLO CR zileuton TABLET, EXTENDED RELEASE;ORAL 022052-001 May 30, 2007 ⤷  Try a Trial ⤷  Try a Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >Patent No. >Patent Expiration

International Patents for ZYFLO CR

See the table below for patents covering ZYFLO CR around the world.

Country Patent Number Title Estimated Expiration
Canada 2024672 COMPOSES INHIBITEURS DE LA LIPOXYGENASE CONTENANT DE L'INDOLE, DU BENZOFURANE ET DU BENZOTHIOPHENE (INDOLE, BENZOFURAN,AND BENZOTHIOPHENE CONTAINING LIPOXYGENASE INHIBITING COMPOUNDS) ⤷  Try a Trial
Canada 2031393 COMPRIMES A LIBERATION PROGRESSIVE DE SUBSTANCES ACTIVES (TABLETS WITH CONTROLLED-RATE RELEASE OF ACTIVE SUBSTANCES) ⤷  Try a Trial
Japan 2006160762 PHARMACEUTICAL TABLET CAPABLE OF LIBERATING ONE OR MORE DRUGS AT DIFFERENT RELEASE RATE ⤷  Try a Trial
Germany 69026215 ⤷  Try a Trial
Greece 3020404 ⤷  Try a Trial
>Country >Patent Number >Title >Estimated Expiration

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