Gourt > Shopping > Health > Pharmacy > Online Pharmacies > Viagra
Sildenafil citrate, sold under the names Viagra, Revatio and generically under various other names, is a drug used to treat male erectile dysfunction (impotence) and pulmonary arterial hypertension (PAH), developed by the pharmaceutical company Pfizer. Viagra pills are blue and diamond-shaped with the words "Pfizer" on one side and "VGR xx" (with xx representing 25, 50 or 100, the dose of that pill in milligrams) on the other. Its primary competitors on the market are tadalafil (Cialis), and vardenafil (Levitra).
History
Sildenafil (compound UK-92,480) was synthesized by a group of pharmaceutical chemists working at Pfizer's Sandwich, Kent research facility. It was initially studied for use in hypertension (high blood pressure) and angina pectoris (a form of ischaemic cardiovascular disease). Phase I clinical trials under the direction of Ian Osterloh suggested that the drug had little effect on angina, but that it could induce marked penile erections Terrett, N. K. et al. Sildenafil (Viagra), a potent and selective inhibitor of Type 5 cGMP phosphodiesterase with utility for the treatment of male erectile dysfunction. Bioorg. Med. Chem. Lett. 1996, 6, 1819-1824. . Pfizer therefore decided to market it for erectile dysfunction, rather than for angina. The drug was patented in 1996, approved for use in erectile dysfunction by the Food and Drug Administration on March 27, 1998, becoming the first pill approved to treat erectile dysfunction in the United States, and offered for sale in the United States later that year Kling J. From hypertension to angina to Viagra. Mod Drug Discov 1998;1:31-38. Fulltext. . It soon became a great success: annual sales of Viagra in the period 1999–2001 exceeded $1 billion.
The British press portrayed Peter Dunn and Albert Wood as the inventors of the drug, a claim which Pfizer disputes.Bellis, Mary. "Viagra, the patenting of an aphrodisiac." About.com.. Their names are on the manufacturing patent application drug, but Pfizer claims this is only for convenience.
More on [ Sildenafil ]
Oral Medications :: Treatments
Sildenafil :: S
Reproduction and Sexuality :: Health
Aphrodisiacs :: Reproduction and Sexuality
http://bit.ly/4q1MTS looking for #herbal healthcare herbs natural #ingredients #pills #care#skin, #weight loss #diet #smoking #hair #viagra
mkcultra_ume (mkcultra ume) Sat, 07 Nov 2009 13:32:16 -0000
http://bit.ly/4q1MTS looking for #herbal healthcare herbs natural #ingredients #pills #care#skin, #weight loss #diet #smoking #hair #viagra
Great, simple ad for Viagra's 10th anniversary http://bit.ly/2pC1Mc
trevlcmd (Trevor) Sat, 07 Nov 2009 13:31:24 -0000
Great, simple ad for Viagra's 10th anniversary http://bit.ly/2pC1Mc
RT @isacavaletti viagra is 10. http://bit.ly/2Ctida // aniversário do Viagra! hahaha
maiconsantini (Maicon Santini) Sat, 07 Nov 2009 13:30:33 -0000
RT @isacavaletti viagra is 10. http://bit.ly/2Ctida // aniversário do Viagra! hahaha
viagra is 10. http://bit.ly/2Ctida
isacavaletti (Isabella Cavaletti) Sat, 07 Nov 2009 13:29:05 -0000
viagra is 10. http://bit.ly/2Ctida
Quem gasta todo o dinheiro com viagra, acaba ficando duro.
saandre7 (André Sá Oliveira) Sat, 07 Nov 2009 13:24:09 -0000
Quem gasta todo o dinheiro com viagra, acaba ficando duro.
gile pada berderet2 di kota. penasaran ada tweeps yg pernah coba pake viagra and/or sejenisnya?
lexdepraxis (Lex dePraxis) Sat, 07 Nov 2009 13:21:09 -0000
gile pada berderet2 di kota. penasaran ada tweeps yg pernah coba pake viagra and/or sejenisnya?
All Viagra - Pharmacy offering information and online ordering of vitamins, cosmetics, and sexual health products.
Meta Description: [ Viagra - Buy Viagra prescriptions online for impotence. All Viagra offer Viagra information and Viagra ordering online. All Viagra Online has your Viagra answers! ]
Excelsia Trading Agency - Offers a generic version, as well as dosage information.
Meta Description: [ Buy Kamagra the cheap viagra alternative from the no1 kamagra supplier on the net! ]
Viagra 4 You - Online sales of Viagra pills as well as other sexual aids.
Viagra Clinic - Specializing in prescriptions and refills, with international shipping.
Viagra Prescriptions - Online prescriptions delivered to the United States and the United Kingdom.
Meta Description: [ Buy Prescription UK Viagra. Buy UK Viagra in the UK, cheapest UK Viagra prices. Viagra prescriptions in the UK. ]
| Pharmacy Direct - New Zealand's online pharmacy and healthcare store | |
| Next Video | |
