Viagra (sildenafil) is approved to treat sexual dysfunction in men by the U.S. Food and Drug Administration (FDA), but it is sometimes prescribed to women off-label, which means without approval by the FDA. Viagra is an effective drug for treating male erectile dysfunction, but it targets sexual performance, not sexual arousal.Its effects might last longer if you have mild to moderate ED. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Patients should always ask their doctors for medical advice about adverse events. Ask your pharmacist for a list of the ingredients. Kidney disease that needs to be treated with dialysis. · Sildenafil under the name Viagra is used to treat erectile dysfunction (impotence) in men. Another brand of sildenafil is Revatio, which is used to treat pulmonary arterial hypertension and improve exercise capacity in men and women. What is Viagra? If you have erectile dysfunction (ED), your doctor may recommend that you take Viagra. It’s a prescription drug that’s used in adult males* with ED. With ED, you have trouble. Typical dosing for Sildenafil (Viagra) The typical dose is to take 50 mg of sildenafil (Viagra) by mouth, about 1 hour before sex, as needed. The maximum recommended dose is mg. Don’t take sildenafil (Viagra) more than once daily (at any dose). Written by Brian Leonard, PharmD, BCACP, BCGP.Often, these are prescribed for chest pain called angina. The four main medicines taken by mouth for erectile dysfunction are: Avanafil Stendra. This can happen if you are sick with fever, diarrhea, or vomiting; sweat a lot; or do not drink enough liquids. Its effects might last longer if you have mild to moderate ED. Use the oral syringe provided with your medication to measure and take your dose. Continue to take sildenafil even if you feel well. Tell your doctor if any of these symptoms are severe or do not go away: headache.

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