Before you begin using a medication, be sure to inform your doctor of any medical conditions or allergies you may have, any medications you are taking, whether you are pregnant or breast-feeding, and any other significant facts about your health. These factors may affect how you should use this medication.
Cataracts: If you will be undergoing cataract surgery, you should tell your doctor you are taking a medication that contains silodosin. Your surgeon may advise you to temporarily stop taking the medication before the surgery.
Drowsiness/dizziness: This medication may cause dizziness. Do not drive, operate machinery, or perform other hazardous tasks until you have determined how this medication affects you.
Eye surgery: If you are having eye surgery (such as cataract surgery), inform your eye surgeon that you are taking this medication. This type of medication can cause an eye problem during surgery called Intraoperative Floppy Iris Syndrome (IFIS).
Grapefruit and grapefruit juice: Regularly eating grapefruit or drinking grapefruit juice while taking silodosin may cause an increase in the amount of medication in the body, thereby causing an increase in side effects. You should avoid regularly eating or drinking grapefruit products while taking this medication.
Kidney function: Kidney disease or reduced kidney function may cause this medication to build up in the body, causing side effects. If you have reduced kidney function, discuss with your doctor how this medication may affect your medical condition, how your medical condition may affect the dosing and effectiveness of this medication, and whether any special monitoring is needed. If you have severely reduced kidney function you should not take this medication.
Liver function: The effect of this medication on people with reduced liver function has not been studied. If you have liver disease or reduced liver function, discuss with your doctor how this medication may affect your medical condition, how your medical condition may affect the dosing and effectiveness of this medication, and whether any special monitoring is needed. If you have severely reduced liver function you should not take this medication.
Orthostatic hypotension: People taking silodosin may experience orthostatic hypotension, which is low blood pressure on rising from a lying or sitting position. If you experience dizziness or weakness, sit or lie down until the symptoms have disappeared. Fainting is the most severe symptom of orthostatic hypotension.
If you experience fainting, contact your doctor as soon as possible. Do not drive or perform hazardous tasks until you are certain that this medication does not impair your ability to perform these tasks safely.
Prostate cancer: Prostate cancer and BPH cause many of the same symptoms. These two diseases frequently coexist. An evaluation should be done to rule out prostate cancer before silodosin therapy is started. Silodosin is not intended to treat symptoms of prostate cancer.
Pregnancy: This medication is not intended for use by women, including those who are or may be pregnant.
Breast-feeding: Silodosin is not intended for use by women, including those who are breast-feeding.
Children: This medication is not intended for use by children. The safety and effectiveness of silodosin have not been established for use by people in this age group.
Seniors: It is likely that people over the age of 65 will experience more side effects such as dizziness, and should report any unusual effects to their doctor as soon as possible.