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Updated September 05, 2006

Flomax Basics:

Flomax is the brand name for the medication tamsulosin a drug used in the treatment of benign prostatic hypertrophy (BPH) that affects many men over the age of 50. Is is a product of Boehringer Ingelheim Pharmaceuticals, Inc.
BPH is an enlargement of the prostate gland that causes urinary symptoms including weak flow, urgency and frequently waking at night to urinate.

What is Flomax Used For:

Flomax is an alpha blocker drug that helps to relax the muscles of the prostate that surround the urethra in males. By relaxing these muscles urine can flow more freely, and the bladder is able to empty more completely, reducing urgency and frequency of urination.

Forms of Flomax:

Flomax is available as a 0.4mg capsule. The usual dosage is one capsule once a day preferable with a meal (the same meal each day). Capsules should be swallowed whole and should not be chewed or crushed.

BPH Facts:

The prostate is a walnut sized gland that surrounds the urethra and is a part of the male reproductive system. The cause of BPH is not known but it affects many men over the age of 50. It is important for men having urinary symptoms to see a physician so a more serious problem such as prostate cancer can be ruled out. BPH symptoms include
  • Weak urine stream
  • Urgency and leaking or dribbling
  • More frequent urination

Side Effects of Flomax:

Common side effect can include:
  • Dizziness
  • Unusual weakness
  • Drowsiness
  • Trouble sleeping
  • Runny nose
More serious side effects that need urgent medical care include
    Allergic reaction including rash
  • Sexual problems such as inability to ejaculate or persistent erection
  • fast heartbeat

Who Should Not Use Flomax:

  • Anyone who is allergic to Flomax

What You Need To Know About Flomax:

The most common side effect of this medication is dizziness. Patients taking this medication should be cautioned not to drive or operate machinery after the first dose or if the dose is increased, until the effect of the drug is known.


Nursing Drug Reference,Mosby, 2004Healthsquare , 11/2003.
More Information About BPH

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