You should not use this medicine if you have had an allergic reaction to silodosin, or if you are also using clarithromycin (Biaxin®), itraconazole (Sporanox®), ketoconazole (Nizoral®), or ritonavir (Norvir®). Do not take this medicine if you have severe kidney disease or severe liver disease. Women and children should not use this medicine.
Your doctor will tell you how much of this medicine to use and how often. Do not use more medicine or use it more often than your doctor tells you to.
It is best to take this medicine with food or milk.
If a dose is missed:
If you miss a dose or forget to use your medicine, use it as soon as you can. If it is almost time for your next dose, wait until then to use the medicine and skip the missed dose. Do not use extra medicine to make up for a missed dose.
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.
Ask your pharmacist, doctor, or health caregiver about the best way to dispose of any leftover medicine after you have finished your treatment. You will also need to throw away old medicine after the expiration date has passed.
Keep all medicine away from children and never share your medicine with anyone.
Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.
Make sure your doctor knows if you are using medicines for high blood pressure (such as atenolol, diltiazem, doxazosin, terazosin, verapamil, Cardura®, Hytrin®, Isoptin®, or Cardizem®). Tell your doctor if you are also using cyclosporine (such as Gengraf®, Neoral®, or Sandimmune®), erythromycin (Ery-Tab®), sildenafil (Viagra®), or tadalafil (Cialis®).
Make sure your doctor knows if you have kidney disease or liver disease, or a history of prostate cancer or low blood pressure.
Low blood pressure (hypotension) may occur while taking this medicine. Check with your doctor right away if you have the following symptoms: blurred vision; confusion; severe dizziness, faintness, or lightheadedness when getting up from a lying or sitting position suddenly; sweating; or unusual tiredness or weakness.
This medicine may make you dizzy or lightheaded. Avoid driving, using machines, or doing anything else that could be dangerous if you are not alert.
Before you have eye surgery for a cataract (clouding of the eye), tell the ophthalmologist (eye doctor) that you are taking this medicine.
Your doctor will need to check your progress at regular visits while you are using this medicine. Be sure to keep all appointments.