Take Cialis exactly as prescribed by your doctor
Swallow the tablet whole with water
Take it with or without food
Use it only once per day if prescribed for daily use
Use it at least 30 minutes before sexual activity if prescribed as needed
Do not take more than one dose in 24 hours
Avoid taking it with nitrates
Avoid taking it with riociguat
Tell your doctor about all medicines you take
Tell your doctor if you have heart, liver, kidney, or blood pressure problems
Avoid heavy alcohol use
Seek medical help for chest pain, fainting, or an erection lasting more than 4 hours