Compare Cardura vs. Flomax

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

Cardura (Doxazosin)

Prescription only

Flomax (tamsulosin)

Prescription only
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
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
Upsides
  • A first-choice treatment for enlarged prostate. Makes it easier to urinate.
  • 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.
Downsides
  • 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.
  • 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.
Used for
Dosage forms
  • Pill
  • Extended release
  • Pill
Price
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Reviews
101 reviews so far
38%
saidit'sworth it
21%
saiditworked well
18%
saidit'sa big hassle

Have you used Cardura (Doxazosin)?

Leave a review
85 reviews so far
58%
saidit'sworth it
41%
saiditworked well
19%
saidit'sa big hassle

Have you used Flomax (tamsulosin)?

Leave a review
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
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
Risks and risk factors
  • Low blood pressure
    • Age 65 years or older
  • Painful erection
  • Intraoperative floppy iris syndrome
    • Cataract surgery
See more detailed risks and warnings
  • 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