DrugPatentWatch Database Preview
VIAGRA Drug Profile
» See Plans and Pricing
Which patents cover Viagra, and when can generic versions of Viagra launch?
Viagra is a drug marketed by Upjohn and is included in one NDA. There is one patent protecting this drug and two Paragraph IV challenges.
This drug has forty-five patent family members in twenty-six countries.
The generic ingredient in VIAGRA is sildenafil citrate. There are twenty drug master file entries for this compound. Forty-two suppliers are listed for this compound. Additional details are available on the sildenafil citrate profile page.
DrugPatentWatch® Litigation and Generic Entry Outlook for Viagra
A generic version of VIAGRA was approved as sildenafil citrate by TORRENT PHARMS LTD on November 6th, 2012.
Summary for VIAGRA
International Patents: | 45 |
US Patents: | 1 |
Applicants: | 1 |
NDAs: | 1 |
Suppliers / Packagers: | 8 |
Bulk Api Vendors: | 88 |
Clinical Trials: | 141 |
Patent Applications: | 3,887 |
Formulation / Manufacturing: | see details |
Drug Prices: | Drug price information for VIAGRA |
Drug Sales Revenues: | Drug sales revenues for VIAGRA |
Patent Litigation and PTAB cases: | See patent lawsuits and PTAB cases for VIAGRA |
What excipients (inactive ingredients) are in VIAGRA? | VIAGRA excipients list |
DailyMed Link: | VIAGRA at DailyMed |



Recent Clinical Trials for VIAGRA
Identify potential brand extensions & 505(b)(2) entrants
Sponsor | Phase |
---|---|
The University of Texas Medical Branch, Galveston | Phase 2 |
Cairo University | Phase 1 |
University of British Columbia | N/A |
Pharmacology for VIAGRA
Drug Class | Phosphodiesterase 5 Inhibitor |
Mechanism of Action | Phosphodiesterase 5 Inhibitors |
Paragraph IV (Patent) Challenges for VIAGRA
Tradename | Dosage | Ingredient | NDA | Submissiondate |
---|---|---|---|---|
VIAGRA | TABLET;ORAL | sildenafil citrate | 020895 | 2004-11-19 |
VIAGRA | TABLET;ORAL | sildenafil citrate | 020895 | 2004-10-25 |
US Patents and Regulatory Information for VIAGRA
Applicant | Tradename | Generic Name | Dosage | NDA | Approval Date | TE | Type | RLD | RS | Patent No. | Patent Expiration | Product | Substance | Delist Req. | Exclusivity Expiration |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Upjohn | VIAGRA | sildenafil citrate | TABLET;ORAL | 020895-001 | Mar 27, 1998 | AB | RX | Yes | No | Start Trial | Start Trial | Start Trial | |||
Upjohn | VIAGRA | sildenafil citrate | TABLET;ORAL | 020895-002 | Mar 27, 1998 | AB | RX | Yes | No | Start Trial | Start Trial | Start Trial | |||
Upjohn | VIAGRA | sildenafil citrate | TABLET;ORAL | 020895-003 | Mar 27, 1998 | AB | RX | Yes | Yes | 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 |
Expired US Patents for VIAGRA
Applicant | Tradename | Generic Name | Dosage | NDA | Approval Date | Patent No. | Patent Expiration |
---|---|---|---|---|---|---|---|
Upjohn | VIAGRA | sildenafil citrate | TABLET;ORAL | 020895-002 | Mar 27, 1998 | Start Trial | Start Trial |
Upjohn | VIAGRA | sildenafil citrate | TABLET;ORAL | 020895-001 | Mar 27, 1998 | Start Trial | Start Trial |
Upjohn | VIAGRA | sildenafil citrate | TABLET;ORAL | 020895-003 | Mar 27, 1998 | Start Trial | Start Trial |
Upjohn | VIAGRA | sildenafil citrate | TABLET;ORAL | 020895-003 | Mar 27, 1998 | Start Trial | Start Trial |
>Applicant | >Tradename | >Generic Name | >Dosage | >NDA | >Approval Date | >Patent No. | >Patent Expiration |
International Patents for VIAGRA
Country | Patent Number | Estimated Expiration |
---|---|---|
Canada | 2163446 | Start Trial |
China | 1124926 | Start Trial |
New Zealand | 238586 | Start Trial |
Australia | 6797394 | Start Trial |
>Country | >Patent Number | >Estimated Expiration |
Supplementary Protection Certificates for VIAGRA
Patent Number | Supplementary Protection Certificate | SPC Country | SPC Expiration | SPC Description |
---|---|---|---|---|
0463756 | SPC/GB99/004 | United Kingdom | Start Trial | PRODUCT NAME: SILDENAFIL AND PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF, IN PARTICULAR THE CITRATE SALT; REGISTERED: CH 54642 19980622; UK EU/1/98/077/001 19980914; UK EU/1/98/077/002 19980914; UK EU/1/98/077/003 19980914; UK EU/1/98/077/004 19980914; UK EU/1/98/077/005 19980914; UK EU/1/98/077/006 19980914; UK EU/1/98/077/007 19980914; UK EU/1/98/077/008 19980914; UK EU/1/98/077/009 19980914; UK EU/1/98/077/010 19980914; UK EU/1/98/077/011 19980914; UK EU/1/98/077/012 19980914 |
0463756 | C990005 | Netherlands | Start Trial | PRODUCT NAME: SILDENAFIL, DESGEWENST IN DE VORM VAN EEN FARMACEUTISCH AAN- VAARDBAAR ZOUT, IN HET BIJZONDER SILDENAFIL CITRAAT; NATL REGISTRATION NO/DATE: EU/1/98/077/001-012 19980914; FIRST REGISTRATION: CH 54642 19980622 |
0463756 | 5/1999 | Austria | Start Trial | PRODUCT NAME: ''SILDENAFIL'' UND DESSEN PHARMAZEUTISCH ANNEHMBAREN SALZE, EINSCHLIESSLICH DES CITRATS; NAT. REGISTRATION NO/DATE: EU/1/98/077/001 - EU/1/98/077/012 19980914; FIRST REGISTRATION: LI 54642 01-54642 03 19980622 |
0463756 | 300048 | Netherlands | Start Trial | PRODUCT NAME: ZOLMITRIPTANUM, DESGEWENST IN DE VORM VAN EEN FYSIOLOGISCH AANVAARDBAAR ZOUT OF VAN EEN SOLVAAT; NATL. REGISTRATION: RVG 21079 RVG 21080 19970925; FIRST REGISTRATION: PL 12619/0116 19970307 |
>Patent Number | >Supplementary Protection Certificate | >SPC Country | >SPC Expiration | >SPC Description |