Take sildenafil exactly as prescribed by your doctor
Take it about 30 to 60 minutes before sexual activity
Swallow the tablet with water
Take it on an empty stomach or after a light meal for faster effect
Do not take more than one dose in 24 hours unless your doctor tells you otherwise
Do not use it with nitrate medicines
Avoid heavy alcohol use when taking it
Do not take it with other erectile dysfunction medicines unless prescribed
Follow your doctor’s instructions for dose and timing
Seek medical help if you have chest pain, severe dizziness, or an erection lasting more than 4 hours