If you’re prescribed Viagra, you can purchase it in doses of 25, 50, or 100 milligrams (mg). Hims recommends taking Viagra 30 minutes to 4 hours before sexual activity. You can make a one-time ...

Whether you’re a senior in high school or a senior-living resident, you’ve likely heard of Viagra (sildenafil) — the original ...

Vardenafil is more potent than sildenafil and typically requires a lower dosage. This may reduce the risk of side effects in ...

The onset of Viagra's effects can vary among individuals and is influenced by factors like dosage and overall health. Viagra typically takes effect for erectile dysfunction within about 30 minutes.

Several observations from preclinical and short-term clinical studies support a role for sildenafil in the treatment of heart failure patients. The following discussion briefly considers each of ...