The appropriate dosage of Viagra may vary between people. Your doctor will be able to determine the right dosage for you.
The number of doses taken daily depends on why Viagra is being used. Viagra is taken orally.
For use in erectile dysfunction:
Adults ages up to 64 years old typically take 50 milligrams (mg) 1 hour before sexual intercourse, no more than once a day.
For adults ages 65 and older using Viagra for erectile dysfunction, or for those with cirrhosis or severe renal impairment, the average dose is 25 mg as a single dose, taken 1 hour before sexual intercourse, but no more than once a day.
Viagra may also be taken between 30 minutes to 4 hours prior to sexual intercourse.
Your doctor may adjust your dosage to meet your needs.
Viagra may also be used for pulmonary arterial hypertension. When used for this purpose, the average dose is 5 to 20 mg of Viagra taken 3 times a day. The doses of Viagra should be taken between 4 to 6 hours apart when used for pulmonary arterial hypertension.
Viagra may also be used for pulmonary arterial hypertension. When used for this purpose, the average dose is 5 to 20 mg of Viagra taken 3 times a day. The doses of Viagra should be taken between 4 to 6 hours apart when used for pulmonary arterial hypertension.
Age
Dosage
When to take
Adults ages up to 64 years old
50 mg, no more than once a day
1 hour prior to sexual intercourse (alternatively, may also be taken between 30 minutes and 4 hours prior to sexual intercourse)
Adults ages 65 and older, or with cirrhosis or severe renal impairment
25 mg, no more than once a day
1 hour prior to sexual intercourse (alternatively, may also be taken between 30 minutes and 4 hours prior to sexual intercourse)