Cialis can be used for the treatment of erectile dysfunction. Tell your doctor about any medicines you are currently taking, including nitrate-based drugs for chest pain, recreational drugs ("poppers"), or alpha blockers prescribed for prostate problems and high blood pressure. Do not start taking any of these drugs when you are already taking Cialis as the combination can lead to serious health consequences. Tell your doctor if you have kidney or liver problems, stomach ulcer, an inherited retinal disorder, unstable angina (chest pain occurring at any time) or irregular heartbeat. These conditions may require your doctor to adjust the dosage.
Such conditions as a history of a stroke or a heart attack may be a contraindication. Tell your doctor about having these medical conditions before starting to take this drug as the effects of Cialis on people with cardiovascular disease have not been completely studied.
In some rare cases the patients taking this medicine have reported priapism - an unusually long and painful erection that can damage the tissues of your penis. If you think you may have priapism seek emergency medical help.