Timing: Take 1 tablet about 30 to 60 minutes before sexual activity. The medication remains active in your body for up to 4–5 hours. [1, 2, 3]
Dosage: The standard recommended starting dose is 50 mg, which can be adjusted by a doctor up to a maximum of 100 mg per day. Do not take more than one dose in a 24-hour period. [1, 2, 3]
Food interactions: While it can be taken with or without food, taking it after a heavy or high-fat meal may delay how quickly the drug starts working. [1, 2]
Sexual arousal required: The pill does not cause an automatic erection; natural sexual stimulation is still required for it to work