Compare Flomax vs. Cardura

Head-to-head comparisons of medication uses, side effects, ratings, and more.

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Flomax (tamsulosin)

Prescription only

Cardura (Doxazosin)

Prescription only
Makes it easier to urinate.

Flomax (tamsulosin) is a good treatment for an enlarged prostate if medical treatment is needed, but it can reduce your sex drive and takes time to kick in.

3.4/ 5 average rating with 85 reviewsforFlomax
Lowers blood pressure and makes it easier to urinate.

For men, Doxazosin will help make it easier to urinate so that you're not getting up a lot at night. It's a last-choice treatment for high blood pressure.

2.8/ 5 average rating with 101 reviewsforCardura
Upsides
  • Flomax (tamsulosin) works just as well as similar medications but with fewer and less severe side effects.
  • Helps make urinating easier.
  • Available in generic.
  • Also available in a combination form with another medication to treat severe symptoms of enlarged prostate.
  • Simple once daily dosing.
  • A first-choice treatment for enlarged prostate. Makes it easier to urinate.
Downsides
  • Flomax (tamsulosin) only treats the symptoms of enlarged prostate. It doesn't make the prostate smaller or stop it from getting bigger.
  • Has to be taken at the same time every day.
  • It can take up to one month to see the full effects of Flomax (tamsulosin).
  • 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.
  • A last-choice treatment for high blood pressure because other medicines are more effective at preventing heart disease. Your doctor might add it to a medicine you're already taking if your blood pressure is still too high.
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Used for
  • Enlarged prostate (BPH)
  • Improve urine flow due to nerve issues, radiation therapy, and bladder outlet blockage
  • Promote kidney stone passage
Dosage forms
  • Pill
  • Pill
  • Extended release
Price
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Reviews
85 reviews so far
58%
saidit'sworth it
41%
saiditworked well
19%
saidit'sa big hassle

Have you used Flomax (tamsulosin)?

Leave a review
101 reviews so far
38%
saidit'sworth it
21%
saiditworked well
18%
saidit'sa big hassle

Have you used Cardura (Doxazosin)?

Leave a review
Side effects
15possible side effects
  • Headache
    19%
  • Dizziness
    15%
  • Runny nose/ nasal congestion
    13%
  • Infection
    9%
  • Weakness
    8%
  • Abnormal ejaculation
    8%
  • Back pain
    7%
  • Sore Throat
    6%
  • Diarrhea
    6%
  • Chest pain
    4%
  • Drowsiness
    3%
  • Cough increased
    3%
  • Nausea
    3%
  • Insomnia
    2%
  • Sinus infection
    2%
See more detailed side effects
13possible side effects
  • Dizziness
    16%
  • Headache
    10%
  • Fatigue
    8%
  • Edema
    3%
  • Somnolence
    3%
  • Back Pain
    2%
  • Pain
    2%
  • Hypotension
    2%
  • Abdominal Pain
    2%
  • Diarrhea
    2%
  • Dyspepsia
    2%
  • Nausea
    2%
  • Dyspnea
    2%
See more detailed side effects
Risks and risk factors
  • Low blood pressure
    • Taking medications for high blood pressure
  • Rash
    • History of "sulfa" allergies
  • Floppy iris syndrome
    • Cataract or glaucoma surgery
  • Heat stroke
    • Alcohol use
    • Heavy exercise
    • Hot weather
  • Sexual problems and prolonged erections
  • Drug interactions
See more detailed risks and warnings
  • Low blood pressure
    • Age 65 years or older
  • Painful erection
  • Intraoperative floppy iris syndrome
    • Cataract surgery
See more detailed risks and warnings