Help your doctor understand your symptoms.
Use the Erection Hardness Score to assess the hardness of your erections. Then share the results with your doctor. It can help him decide which VIAGRA dose is right for you.
Keep in mind:
If you are over 65, or have serious liver or kidney problems, your doctor may start you out on VIAGRA 25 mg. And if you are on protease inhibitors, your doctor may prescribe VIAGRA 25 mg and limit how often you take it.
If you have prostate problems or high blood pressure for which you take medicines called alpha blockers, your doctor may start you on a lower dose of VIAGRA.