VIAGRA comes in different doses (25 mg, 50 mg and 100 mg). If you do not get the results you expect, talk with your doctor. You and your doctor can determine the dose that works best for you.

Do not take more VIAGRA than your doctor prescribes. If you think you need a larger dose of VIAGRA, check with your doctor. VIAGRA should not be taken more than once a day. If you are older than age 65, or have serious liver or kidney problems, your doctor may start you at the lowest dose (25 mg) of VIAGRA. If you are taking protease inhibitors, such as for the treatment of HIV, your doctor may recommend a 25 mg dose and may limit you to a maximum single dose of 25mg of VIAGRA in a 48 hour period.

Accidental Overdose
In case of accidental overdose, call your doctor right away.