Cialis (tadalafil) is a phosphodiesterase inhibitor that helps men with erectile dysfunction. Side effects or Cialis include dizziness, drowsiness, lightheadedness or fainting. These side effects may worsen due to a number of factors, including strenuous exercise, hot weather, fever or alcohol consumption. Cialis has been reported to cause temporary mild vision changes. You can continue taking this medicine if the symptoms are not too severe (light sensitivity, blue or green color tint to vision). If they persist or appear to be bothersome contact your doctor for professional advice.
Do not use this medicine if you have kidney problems, allergies (especially to any of the ingredients of Cialis), liver problems, heart problems, low or high blood pressure, a history of heart attack or if you are taking nitrates. Patients with heart problems should not take Cialis unless otherwise directed by their health care provider as this may increase the risk of heart-related side effects (heart attack or a stroke). Do not share Cialis with people to whom it was not prescribed. Every male intending to take this drug has to be examined by a doctor and diagnosed with erectile dysfunction. Each patient's dosage is based on their individual characteristics and other factors.