Drug Patent Number | Company | Drug Patent Title | Drug Patent Expiry | Activity Alert |
---|---|---|---|---|
These drug patents focus on the other aspects of the active substance like dosage, mode of administration (oral, tablet, capsules, liquids etc). | ||||
US5250534 (Pediatric) | VIATRIS | Pyrazolopyrimidinone antianginal agents |
Sep, 2012
(11 years ago) | |
US6469012 | VIATRIS | Pyrazolopyrimidinones for the treatment of impotence |
Oct, 2019
(4 years ago) | |
US6469012 (Pediatric) | VIATRIS | Pyrazolopyrimidinones for the treatment of impotence |
Apr, 2020
(4 years ago) |
Viagra is owned by Viatris.
Viagra contains Sildenafil Citrate.
Viagra has a total of 3 drug patents out of which 3 drug patents have expired.
Expired drug patents of Viagra are:
Viagra was authorised for market use on 27 March, 1998.
Viagra is available in tablet;oral dosage forms.
Viagra can be used as treatment of erectile dysfunction.
The generics of Viagra are possible to be released after 22 April, 2020.
Drugs and Companies using SILDENAFIL CITRATE ingredient
Market Authorisation Date: 27 March, 1998
Treatment: Treatment of erectile dysfunction
Dosage: TABLET;ORAL