What are the side effects of Cialis? Since caffeine, alcohol, the Nicotine from cigarettes, or street drugs can affect the action of many medications, you should let your prescriber know if you use them. Hearing problems: Rarely, people taking Cialis Tadalafil have experienced a sudden decrease or loss of hearing. Tell your doctor if you have any of the following conditions, as they may increase your risk of a prolonged erection: sickle cell Anemia, Multiple Myeloma, or Leukemia. Liver function: Liver disease or reduced liver function may cause Cialis Tadalafil to build up in the body, causing side effects. Cialis is also available in a smaller daily dose 2.Brand Name Cialis Common Name tadalafil In this drug factsheet: How does this medication work? What will it do for me? How should I use this medication? What form Missing: toronto. CIALIS VIAGRA Toll Free Phone: Toll Free Fax: 24 hours / 7 days a week See what customers have to say about our products and services. .