Directions
Viagra comes as a tablet
containing sildenafil citrate, to take by mouth.
For most men, the recommended dose is 50 mg. taken, as needed, approximately 1
hour before sexual activity. However, sildenafil citrate may be taken anywhere
from 4 hours to 0.5 hour before sexual activity. Based on effectiveness and
toleration, the dose may be increased to a maximum recommended dose of 100 mg
or decreased to 25 mg. The maximum recommended dosing frequency is once per
day.