Viagra Oral: Uses, Side Effects, Interactions – WebMD

The sildenafil daily dosage for adults typically starts at 50mg, usually taken roughly one hour before sexual activityand no more than one dose per day. This can The usual adult dose is 20mg taken 3 times a day. Doses for children can range from 10mg to 20mg taken 3 times a day, depending on their weight. Do not take it more than 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 what is the viagra dosage Usual Adult Dose for Erectile Dysfunction. 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. Drug Summary. What Is Viagra? Viagra (sildenafil) is a phosphodiesterase-5 (PDE5) inhibitor used for the treatment of erectile dysfunction. What Are Side Effects of Viagra? Side effects of Viagra include: warmth or redness in the face, neck, or chest, stuffy nose, headaches, stomach pain, upset stomach, nausea, diarrhea, memory problems, back pain 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.

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