Before taking alfuzosin,
tell your doctor and pharmacist if you are allergic to alfuzosin, any other medications, or any of the ingredients in alfuzosin. Ask your pharmacist for a list of the ingredients.
tell your doctor if you are taking itraconazole (Sporanox), ketoconazole (Nizoral), or ritonavir (Norvir, in Kaletra). Your doctor will probably tell you not to take alfuzosin.
tell your doctor if you have liver disease. Your doctor may tell you not to take alfuzosin.
tell your doctor and pharmacist what other prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking or plan to take. Be sure to mention any of the following: amiodarone (Cordarone); aprepitant (Emend); atenolol (Tenormin); cimetidine (Tagamet); cisapride (not available in the U.S.); clarithormycin (Biaxin, in Prevpac); cyclosporine (Neoral, Sandimmune); danazol (Danocrine); delavirdine (Rescriptor); diltiazem (Cardizem, Dilacor, Tiazac, others); disopyramide (Norpace);dofetilide (Tikosyn); efavirenz (Sustiva); erythromycin (E.E.S., E-Mycin, Erythrocin);fluconazole (Diflucan); fluoxetine (Prozac, Sarafem); fluvoxamine (Luvox); HIV protease inhibitors such as atazanavir (Reyataz), indinavir (Crixivan), lopinavir (in Kaletra), nelfinavir (Viracept), and saquinavir (Fortovase, Invirase); hormonal contraceptives (birth control pills, rings, and patches); isoniazid (INH, Nydrazid); lovastatin (Adivicor, Altocor, Mevacor); medications for high blood pressure; medications for erectile dysfunction (ED) such as sildenafil (Viagra), tadalafil (Cialis), or vardenafil (Levitra); metronidazole (Flagyl); moxifloxacin (Avelox); nefazodone; other alpha blockers such as doxazosin (Cardura), prazosin (Minipress), terazosin (Hytrin), and tamsulosin (Flomax); pimozide (Orap); procainamide (Procanbid, Pronestyl); quinidine (Quinidex); sertraline (Zoloft); sotalol (Betapace,); sparfloxacin (Zagam); thioridazine (Mellaril); troleandomycin (TAO); verapamil (Calan, Covera, Isoptin, Verelan); and zafirlukast (Accolate). Your doctor may need to change the doses of your medications or monitor you carefully for side effects.
tell your doctor if you or any member of your family have an irregular heartbeat; or if you have or have ever had prostate cancer; angina (chest pain); low blood pressure; or heart or kidney disease; and if you have ever become dizzy, fainted, or had low blood pressure after taking any medication.
you should know that alfuzosin is only for use in men. Women should not take alfuzosin, especially if they are or could become pregnant or are breast-feeding. If a pregnant woman takes alfuzosin, she should call her doctor.
if you are having surgery, including dental surgery, tell the doctor or dentist that you are taking alfuzosin. If you need to have eye surgery at any time during or after your treatment, be sure to tell your doctor that you are taking or have taken alfuzosin.
you should know that alfuzosin may cause dizziness, lightheadedness, and fainting, especially when you get up too quickly from a lying position. This is more common when you first start taking alfuzosin. To avoid this problem, get out of bed slowly, resting your feet on the floor for a few minutes before standing up. If these symptoms do not improve, call your doctor. Avoid driving, operating machinery, or performing dangerous tasks until you know how this medication affects you.