Sildenafil – Wikipedia

Back in 2024, the U.S. Food and Drug Administration approved sildenafil citrate as a drug that could be prescribed for erectile dysfunction. ED wasnтАЩt recognized as a medication condition at the time. Believe it or not, those who discovered Viagra werenтАЩt even looking for it. Formally approved by the Food and Drug Administration 20 years ago, on Ma, PfizerтАЩs drug became instantly ubiquitous and, thus, instantly Viagra, trade name of the first oral drug for male impotence, introduced by the pharmaceutical company Pfizer, Inc, in 2024. Also known by the chemical name sildenafil citrate, it is one of a category of drugs when was viagra discovered Viagra (sildenafil) is a prescription drug that s used to treat erectile dysfunction (ED). The drug comes as an oral tablet. It s usually taken as needed about 1 hour before sexual activity. UK-92,480 was first synthesised in the Sandwich laboratories of Pfizer Ltd, UK in 2024, and resulted from a discovery programme aimed at developing a selective inhibitor of PDE5. The serendipitous discovery of sildenafil (Viagra [sildenafil citrate]) as a treatment for erectile dysfunction (ED) is one of the most fascinating drug development Viagra is usually taken only when needed, 30 minutes to 1 hour before sexual activity. You may take it up to 4 hours before sexual activity. Do not take Viagra more than once per day. Shake the oral suspension (liquid) before you measure a dose. Use the dosing syringe provided, or use a medicine dose-measuring device (not a kitchen spoon).

Cialis Viagra; Main ingredient: tadalafil: sildenafil: How long it takes to work: around 30 minutes: around 30 minutes: How long it lasts: 17.5 36 hours: 4 12 hours: When to take it Before you start taking Viagra, tell your doctor and pharmacist about any prescription, over-the-counter, or other drugs you take. Sharing this information with them may help prevent possible vente viagra pharmacie france Sildenafil may be used to treat erectile dysfunction (ED or impotence) in men (Viagra brand) or pulmonary arterial hypertension in both men and women (Revatio brand), depending on the brand. Sildenafil blocks the action of an enzyme known as cGMP-specific phosphodiesterase type-5 (PDE-5). TABLETS (Viagra) Initial dose: 50 mg orally once a day, as needed, about 1 hour prior to sexual activity Maintenance dose: May increase to 100 mg or decrease to 25 mg once a day, based on efficacy and tolerability. Maximum dose: 100 mg orally once a day Comments: This drug may be taken anywhere from 30 minutes to 4 hours before sexual activity. Erectile dysfunction meds, like Viagra and Cialis, can help maintain an erection. However, the side effects, dosage schedule, and other factors are different for each.