Although Viagra is effective for most guys with EDit’s important to make sure you’re taking the right dose. Too low of a Viagra dosage and your arousals may not be as firm or reliable as they could be ...

To help control misuse, Viagra and other FDA-approved ED medications are only available in the United States with a prescription from a licensed healthcare provider. The process of getting a ...

Medically reviewed by Matthew Wosnitzer, MD Key Takeaways Viagra lasts for about four hours, but it can last longer in some ...