Take Viagra exactly as prescribed by your doctor
Swallow the tablet whole with water
Take it about 30 to 60 minutes before sexual activity
Do not take more than one dose in 24 hours
Avoid taking it with a heavy or high-fat meal if you want faster effect
Do not use it with nitrate medicines
Do not use it with recreational drugs called poppers
Avoid drinking too much alcohol
Do not take it if you have been told not to have sexual activity
Tell your doctor about all medicines and health conditions before using it
Seek urgent medical help if you have chest pain, severe dizziness, vision loss, or an erection lasting more than 4 hours