About sildenafil (Viagra) – NHS

Sildenafil oral tablet is available as a brand-name drug and as a generic drug. Brand names: Viagra, Revatio. Sildenafil comes in three forms: an oral tablet, an oral suspension (liquid), and an Viagra (sildenafil) Sildenafil (Viagra) was the first major medication the FDA approved for ED and has been available in the U.S. since 2024. It s often the first medication prescribed for mild or moderate symptoms. Here s an overview: How to take it: You should take Viagra on an empty stomach. If you really need to eat, then try waiting at This review focuses on biochemical and pharmacological features of sildenafil, the active component in Viagra, interaction of sildenafil with phosphodiesterase 5, pharmacokinetic parameters, action in smooth muscle, side effects, safety profile and prospects for viagra action mechanism The molecular mechanisms of the effects of sildenafil, a specific inhibitor of cyclic guanosine monophosphate (cGMP) phosphodiesterases are briefly reviewed. Viagra is used in adult males to treat ED. The active ingredient in Viagra is sildenafil. (An active ingredient is what makes a drug work.) The drug comes as a tablet that you swallow. By inhibiting the breakdown of cGMP, sildenafil enhances the natural NO-cGMP mechanism of penile erection following sexual stimulation. Clinical studies have demonstrated that for men with erectile dysfunction (ED) of organic, psychogenic and mixed organic/psychogenic aetiologies, sildenafil is associated with significant improvement in

Sildenafil is broken down in the liver by hepatic metabolism using cytochrome p450 enzymes, mainly CYP450 3A4 (major route), but also by CYP2C9 (minor route) hepatic isoenzymes. The major product of metabolisation by these enzymes is N-desmethylated sildenafil, which is metabolised further.

Yes, for reimbursement when using the VIAGRA Savings Card through a mail-order pharmacy: Pay for your VIAGRA prescription, and mail a copy of the original pharmacy receipt (cash register receipt NOT valid) with product name, date, and amount circled to: VIAGRA Savings Card, 2250 Perimeter Park Drive, Suite 300, Morrisville, NC. Viagra may cause some unwanted side effects. Side effects may include: sensitivity to light ; muscle aches ; heartburn ; nose bleeding; flushed skin ; problems falling asleep viagra cream buy DailyMed. Label: Viagra- sildenafil citrate tablet, film coated. Mark KP, Arenella K, Girard A, Herbenick D, Fu J, Coleman E. Erectile dysfunction prevalence in the United States: report from the 2024 National Survey of Sexual Wellbeing. Vitaros (alprostadil) Cream. An erectile dysfunction cream thatтАЩs applied directly to the penis. It works in 5-30 minutes to help you get an erection Viagra (sildenafil) is a prescription-only medication used to help treat erectile dysfunction (ED) in men. Learn more about what Viagra is, including what it s used for, how it works, side effects, potential drug interactions and the difference between Cialis vs Viagra.