Ask your pharmacist or doctor for a copy of the manufacturer’s information for the patient. Be sure to mention any of the following: alpha blockers such as alfuzosin Uroxatral , doxazosin Cardura , dutasteride Avodart, in Jalyn , prazosin Minipress , silodosin Rapaflo , tamsulosin Flomax, in Jalyn , and terazosin; amiodarone Cordarone, Pacerone ; certain antifungals such as fluconazole Diflucan , griseofulvin Grifulvin, Gris-PEG , itraconazole Onmel, Sporanox , ketoconazole Extina, Ketozole, Nizoral, Xolegel , and voriconazole Vfend ; aprepitant Emend ; bosentan Tracleer ; carbamazepine Carbatrol, Epitol, Tegretol, Teril, others ; clarithromycin Biaxin, in Prevpac ; diltiazem Cardizem, Cartia,Tiazac, others ; efavirenz Sustiva, in Atripla ; erythromycin E. Priapism-predisposing conditions eg, sickle cell anemia, multiple myeloma or leukemia or anatomical deformation of the penis eg, angulation, cavernosal fibrosis or Peyronie’s disease. If you are thinking about using tadalafil please discuss it with your doctor. Read more on male sexual health on the Sexual Health Australia site.Tadalafil – Brand names: Cialis, Adcirca. Find out how tadalafil treats erectile dysfunction, pulmonary hypertension and benign prostate enlargement, and how to take it. Indications/Uses Erectile dysfunction. Signs & symptoms of benign prostatic hyperplasia. Click to view Cialis 5 mg detailed prescribing information Dosage/Direction for Use Erectile dysfunction (ED) 5 mg once daily at approx the same time every day. The most commonly reported side effects in patients treated with Cialis during the testing of the product were: headache. indigestion. back pain. muscle pain. flushing. stuffy nose. Patients who.