You can take Cialis with or without food, because food does not affect how Cialis is absorbed in the intestine. Cialis is a once-per-day oral medication. Swallow the tablet whole and follow with a glass of water. You should take Cialis approximately 60 minutes before sexual activity.
Avoid drinking grapefruit juice when taking Cialis, because it can increase the risk of side effects. Limit alcohol consumption, because it could cause an unsafe drop in blood pressure. In general, alcohol can impair sexual function and performance.
Talk to your doctor to see if Cialis is the right medication for you. A licensed physician can help you choose the correct dosage and maximum frequency of use. Never take more than one dose of Cialis in a 24-hour period. If you experience an erection that lasts more than 4 hours, seek immediate medical attention.