Take Cialis exactly as prescribed by your doctor
Swallow the tablet whole with water
Take it with or without food
For as-needed use, take it at least 30 minutes before sexual activity
Do not take more than one dose in 24 hours
For daily use, take it at the same time every day
Do not split, crush, or chew the tablet unless your doctor says to
Avoid using Cialis with nitrates
Avoid taking more than the prescribed dose
Do not combine it with other erectile dysfunction medicines unless instructed by your doctor
Seek medical help if you have chest pain, fainting, or an erection lasting more than 4 hours