Tamsulosin (By mouth)
Tamsulosin Hydrochloride (tam-SOO-loe-sin hye-droe-KLOR-ide)
Treats problems with urination caused by an enlarged prostate (benign prostatic hyperplasia or BPH). This medicine is an alpha-blocker.
FlomaxThere may be other brand names for this medicine.
When This Medicine Should Not Be Used:You should not use this medicine if you have had an allergic reaction to tamsulosin.
How to Use This Medicine:
- Your doctor will tell you how much of this medicine to use and how often. Your dose may need to be changed several times in order to find out what works best for you. Do not use more medicine or use it more often than your doctor tells you to.
- Take this medicine 30 minutes after the same meal each day. Swallow the capsule whole. Do not crush, chew, or open it.
- This medicine comes with patient instructions. Read and follow these instructions carefully. Ask your doctor or pharmacist if you have any questions.
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.
How to Store and Dispose of This Medicine:
- 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- Ask your pharmacist, doctor, or health caregiver about the best way to dispose of any outdated medicine or medicine no longer needed.
- Keep all medicine away from children and never share your medicine with anyone.
Drugs and Foods to Avoid:
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 also using other alpha-blocker medicines such as doxazosin (Cardura), prazosin (Minipress, Minizide), or terazosin (Hytrin).
- Tell your doctor if you are also using cimetidine (Tagamet), erythromycin (Ery-Tab), fluoxetine (Prozac), ketoconazole (Nizoral), paroxetine (Paxil), terbinafine (Lamisil), medicine for erectile dysfunction (such as sildenafil, tadalafil, vardenafil, Cialis, Levitra, or Viagra), or a blood thinner (such as warfarin, Coumadin).
Warnings While Using This Medicine:
- Make sure your doctor knows if you have kidney disease, liver disease, low blood pressure, prostate cancer, or an allergy to sulfa drugs such as sulfamethoxazole, sulfasalazine, sulfasoxazole, Azulfidine, Bactrim, or Septra.
- This medicine may make you dizzy or drowsy. Avoid driving, using machines, or doing anything else that could be dangerous if you are not alert.
- Dizziness, lightheadedness, or fainting may occur after you take this medicine, especially when you get up suddenly from a lying or sitting position. Getting up slowly may help. If you feel dizzy, lie down so you do not faint. Then sit for a few moments before standing to keep the dizziness from returning.
- If you plan to have cataract surgery, tell your eye doctor (ophthalmologist) if you have used this medicine in the past 9 months. A serious eye problem called intraoperative floppy iris syndrome (IFIS) has occurred in some patients who were taking this medicine or who had recently taken this medicine when they had cataract surgery.
- Seek medical attention right away if you experience a prolonged erection while using this medicine. This is an extremely rare unwanted effect that must be treated right away to prevent permanent erectile damage (impotence).
- Your doctor will need to check your progress at regular visits while you are using this medicine. Be sure to keep all appointments.
Possible Side Effects While Using This Medicine:
Call your doctor right away if you notice any of these side effects:
- Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
- Blistering, peeling, red skin rash
- Lightheadedness, dizziness, fainting
- Painful, prolonged erection of the penis not caused by sexual arousal
If you notice these less serious side effects, talk with your doctor:
- Decrease or change in your sexual desire
- Problems with ejaculation
- Runny or stuffy nose
If you notice other side effects that you think are caused by this medicine, tell your doctor
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088
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