Cialis relaxes muscles and increases blood flow to particular areas of the body. It is a phosphodiesterase inhibitor.
Cialis is used to treat erectile dysfunction (impotence). It works by helping to increase blood flow into the penis during sexual stimulation. This helps you to achieve and maintain an erection.
Cialis may also be used for purposes other than those listed in this medication guide..
Important information about Cialis
Do not take Cialis if you are also using a nitrate drug for chest pain or heart problems. This includes nitroglycerin (Nitrostat, Nitrolingual, Nitro-Dur, Nitro-Bid, and others), isosorbide dinitrate (Dilatrate-SR, Isordil, Sorbitrate), and isosorbide mononitrate (Imdur, ISMO, Monoket).