Viagra and dosage: Forms, strengths, how to take, and more

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. For best results, take Viagra (sildenafil) 30 to 60 minutes before sex. Once you take it, Viagra reaches peak concentrations in about an hour and lasts for about four hours. So, you can take it up to four hours before sex, but you may not see maximum effectiveness at the time of intercourse. Viagra (sildenafil) is an oral medication that treats erectile dysfunction (ED). It works by causing more blood flow to the penis. This helps you to achieve and maintain an erection. You can take Viagra 30 minutes to 4 hours before sexual activity. But it shouldn t be taken more than once daily. For most men, Viagra begins to work within an hour. Sildenafil (Viagra). Tadalafil (Cialis). Vardenafil. These medicines are called PDE5 inhibitors. They enhance the effects of a chemical the body makes that relaxes muscles in the penis, called nitric oxide. This boosts blood flow and helps you get an erection from sexual activity. when does viagra peak Sildenafil (Viagra) is used to treat erectile dysfunction (impotence; inability to get or keep an erection) in men. Sildenafil (Liqrev, Revatio) is used to improve the ability to exercise in adults (Liqrev, Revatio) and children 1 year of age and older (Revatio) with pulmonary arterial hypertension (PAH; high blood pressure in the vessels carrying blood to the lungs, causing shortness of

This finding reflects the time to peak plasma concentration of sildenafil after oral dosing (30 120 min) and is consistent with the results of other clinical trials [5 11]. Erections also were achieved when VSS was delayed for 2 or 4 h after patients received 100-mg doses of sildenafil. See full list on drugs.com Viagra can help men with erectile dysfunction (ED) get and maintain an erection, but there are side effects. Learn more about Viagra s effects on the body.

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