A small number of patients taking Cialis also reported abnormal vision. Tadalafil may not be safe for people with certain medical conditions, including people who have had a stroke , have coronary heart disease or retinitis pigmentosa an eye disease. How can I buy tadalafil? What should I talk to my doctor about when considering if Cialis is right for me? Can Cialis be used with other treatments for impotence? Cialis will be available by prescription only. Read more on male sexual health on the Sexual Health Australia site.The normal dosage of Cialis for occasional use in treating ED is 10 mg taken before sexual activity. If you have side effects with the mg dose, your doctor may prescribe a 5-mg dose. If the AdRx Medication. Encuentra increibles ofertas y consigue cupones para ahorrar aun mas.1M+ visitors in the past month. mg, 5 mg, 10mg, 20 mg tablets. Full Prescribing Information. Can’t find what you’re looking for? Contact us for answers to your medical questions. CIALIS is approved to treat erectile dysfunction (ED), the signs and symptoms of benign prostatic hyperplasia (BPH), and both ED and the signs and symptoms of BPH (ED/BPH).