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Last Updated: December 7, 2019

DrugPatentWatch Database Preview

Details for Patent: 8,617,597

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Which drugs does patent 8,617,597 protect, and when does it expire?

Patent 8,617,597 protects BEYAZ and SAFYRAL and is included in two NDAs.

Summary for Patent: 8,617,597
Title:Pharmaceutical composition containing a tetrahydrofolic acid
Abstract: The present invention relates to solid pharmaceutical compositions, in particular to oral contraceptives, comprising a progestogen, such as drospirenone; an estrogen, such as ethinylestradiol; a tetrahydrofolic acid or a pharmaceutically acceptable salt thereof, such as calcium 5-methyl-(6S)-tetrahydrofolate; and at least one pharmaceutical acceptable excipient or carrier. The compositions of the invention provide good stability of the tetrahydrofolic acid upon storage while still ensuring a fast and reliable release of the estrogen and the progestogen present in the composition.
Inventor(s): King; Kristina (Berlin, DE)
Assignee: Bayer Intellectual Property GmbH (Monheim, DE)
Application Number:11/773,689
Patent Claim Types:
see list of patent claims
Composition; Formulation; Compound; Dosage form;

Drugs Protected by US Patent 8,617,597

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Bayer Hlthcare BEYAZ drospirenone; ethinyl estradiol; levomefolate calcium TABLET;ORAL 022532-001 Sep 24, 2010 AB RX No No   Start Trial   Start Trial Y   Start Trial
Bayer Hlthcare SAFYRAL drospirenone; ethinyl estradiol; levomefolate calcium TABLET;ORAL 022574-001 Dec 16, 2010 AB RX Yes Yes   Start Trial   Start Trial Y   Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

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