Prescription onlyLower-cost generic availableClass: Men's health



Prescription onlyLower-cost generic availableClass: Men's health
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Makes it easier to urinate.

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Our bottom line

Flomax (Tamsulosin) is a first-choice treatment for enlarged prostate, and it's available as a generic. However, it can cause changes in your sex drive and can take a while to kick in.

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Price and discounts
Best available price for 30 (0.4mg) capsules of tamsulosin


  • First-choice medication for relieving the symptoms of an enlarged prostate.
  • Helps make urinating easier.
  • Available as a generic medication.
  • Also available in a combination form with another medication to treat more severe symptoms of an enlarged prostate.
  • Since it works only on the muscles around the prostate, it has fewer blood pressure and heart-related side effects than other medicines in the same class.
People say this drug is:
85 reviews


  • Has to be taken the same time every day.
  • It can take up to one month to see the full effects of the medication.
  • Can reduce sex drive.
  • Flomax (Tamsulosin) can't be stopped suddenly, so you'll need to talk to your doctor about how to stop taking it safely.
  • It doesn't shrink the size of the prostate.
How it works

Flomax (Tamsulosin) is an alpha-1 blocker. It specifically targets and relaxes muscles in your prostate, which makes it easier to urinate.

What to expect when you take Flomax (tamsulosin) for Prostate (BPH)

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Side effect rates for Flomax (tamsulosin)

995 From clinical trials of Flomax / Enlarged prostate (.4 mg)
  • Headache
  • Dizziness
  • Inflammation inside the nose
  • Infection
  • Muscle weakness
  • Abnormal ejaculation
  • Back pain
  • Sore throat
  • Diarrhea
  • Chest pain

Risks and Warnings for Flomax (tamsulosin)

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    • Higher risk if:
    • Taking medications for high blood pressure

    People on Flomax (Tamsulosin) can experience lowered blood pressure which can cause dizziness and falls. This usually happens when you first start taking the medication. Your body should adjust to it after the first few days. Be very careful getting up from a sitting or lying down position.

Common concerns from people taking Flomax (tamsulosin)

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  • Can cause dizziness, muscle pain, headache and stuffy/runny nose.
  • No ejaculate. Erection problems.
  • Caused drowsiness and congestion