or 100 milligrams (mg). Hims recommends taking Viagra 30 minutes to 4 hours before sexual activity. You can make a one-time order or sign up for a subscription plan that sends you a monthly supply ...

Viagra typically takes effect for erectile dysfunction within about 30 minutes. It's important to ... a single dose of 50 milligrams (mg) is advised, to be taken no more than once a day.

approximately 30 to 60 minutes before sexual activity. It should not be taken more than once within 24 hours. Roman offers sildenafil as 25-, 50-, and 100-mg oral tablets. Brand-name Cialis is ...