Viagra: Package Insert / Prescribing Information – Drugs.com
Viagra: Package Insert / Prescribing Information – Drugs.com Viagra (sildenafil) is a prescription medication used to treat erectile dysfunction. Headache, flushing, and upset stomach are common Viagra side effects. These effects are usually mild and often resolve on their own. While rare, Viagra can cause an erection that lasts longer than 4 hours (priapism). The …
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