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 ...

Viagra alternatives range from medical options ... The starting daily dose range is 2.5 to 5 milligrams (mg) but can go as high as 20 mg in some cases. You take it as prescribed and as needed ...