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Cardura (Doxazosin Mesylate)

General Information

Cardura (Doxazosin Mesylate) is indicated for the treatment of the signs and symptoms of Benign Prostatic Hyperplasia (BPH). It is also called prostate enlargement. It is a noncancerous increase in the size of the prostate gland. Symptoms may include frequent urination, inability to urinate, or loss of bladder control.

This may also be used to treat high blood pressure or hypertension. This is used alone or in combination with hypertension medications. Lowering high blood pressure helps prevent strokes, kidney problems, or heart attacks.


How does Cardura (Doxazosin Mesylate) work?

Cardura (Doxazosin Mesylate) prevents norepinephrine that is released by nerves. It is from binding to alpha-1 receptors on the smooth muscle surrounding blood vessels and in the prostate and bladder. By blocking the effect of norepinephrine, this drug relaxes the smooth muscle. Relaxation of the smooth muscle surrounding blood vessels causes them to enlarge. Thereby it reduces blood pressure. Relaxation of smooth muscle in the prostate and bladder improves the flow of urine. It also reduces the pain and discomfort characteristic of BPH.

Why use Cardura (Doxazosin Mesylate)?

Cardura (Doxazosin Mesylate) is a quinazoline compound. It is a selective inhibitor of the alpha-1 subtype of alpha-adrenergic receptors. This is available as colored tablets for oral use. It contains 1mg (white), 2mg (yellow), 4mg (orange), and 8mg (green) of Doxazosin as a free base. The Food and Drug Administration (FDA) has approved this medication.

How to use Cardura (Doxazosin Mesylate)?

The dosage of this medication is based on your condition and response.

This is to be taken by mouth with a full glass of water. It is usually taken once a day. You may take it with or without food. This may cause a sudden drop in your blood pressure, which could lead to dizziness or fainting. It usually takes 2-6 hours after you take the drug.

Take it at the same time each day. It is important that you take it exactly as it is directed by your doctor.

What are the side effects of Cardura (Doxazosin Mesylate)?

  • Light-headedness
  • Dizziness
  • Fatigue
  • Drowsiness
  • Tired feeling
  • Headache
  • Nausea
  • Shortness of breath
  • Diarrhea
  • Runny nose
  • Swelling (edema)
  • Weight gain
  • Low blood pressure


Warnings and Precautions

  • Before taking this, let your doctor know if you are allergic to it or if you have any allergies. Tell also your doctor if you have any medical history or current medications.
  • You should not share this with others even if they have the same symptoms as yours.
  • Keep this and all your medications away from the reach of children.