CA Patent

CA2561839C — Multi-phase contraceptive preparation based on a natural estrogen

Assigned to Bayer Intellectual Property GmbH · Expires 2009-09-29 · 17y expired

What this patent protects

The invention relates to a multi-phase contraceptive preparation that is based on a natural estrogen combined with a synthetic gestagen. Conventional anovulant preparations known in the prior art have proven to be reliable and safe in large-scale application. The aim of the inven…

USPTO Abstract

The invention relates to a multi-phase contraceptive preparation that is based on a natural estrogen combined with a synthetic gestagen. Conventional anovulant preparations known in the prior art have proven to be reliable and safe in large-scale application. The aim of the invention is to provide a preparation that offers a higher contraceptive safety over the entire duration of the cycle, improves the cyclic bleeding behavior, and reduces or excludes side-effects, such as tender breasts, headaches, depressive moods, and libido disorders and the like.

Drugs covered by this patent

Patent Metadata

Patent number
CA2561839C
Jurisdiction
CA
Classification
—
Expires
2009-09-29
Drug substance claim
No
Drug product claim
No
Assignee
Bayer Intellectual Property GmbH
Source
FDA Orange Book + USPTO grounding via Google Patents

Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.

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