Cialis (tadalafil) is the second most popular erectile dysfunction treatment preferred by patients who do not enjoy planning their sex life too carefully – in comparison with other medicines of the kind Cialis provides for a much longer period of efficiency – up to 36 hours, which is why it has been dubbed «the weekend pill». If you think Cialis is not working properly for you, you can talk to your doctor and discuss your options. Do not switch to another medicine without talking to a qualified health professional that will be able to assess your health condition and prescribe the dosage that will be efficient and safe for you. If you ever had a painful and prolonged erection, eye problems or disease that affected the shape of your penis, this fact needs to be mentioned when you are examined by your health care provider. Some of the conditions mentioned may increase the probability of developing serious and unpleasant side effects of taking Cialis, so you may be offered an alternative method of treatment. Your health care provider also needs to know if you have or ever had a stroke, diabetes, cavernosal fibrosis, chest pain, liver, kidney, or heart disease, a heart attack, bleeding disorder, ulcers in the stomach, irregular heartbeat, leukemia, high or low blood pressure, Peyronie's disease, high cholesterol, sickle cell anemia or any other ones that you think are important to mention. If you or someone else took too much of Cialis and any of the following symptoms are displayed seek emergency medical help: back pain, muscle pain, flushing, headache, runny or stuffy nose, prolonged erection that is painful and can result in a permanent damage of the penis tissues.