Prostate Home > Cardura Dosing

Cardura dosing typically starts at 1 mg a day and then is increased slowly to prevent side effects. The maximum dose for people taking the medication for an enlarged prostate is 8 mg a day; it's 16 mg a day for people taking it for hypertension. When Cardura dosing is first started, your blood pressure is checked frequently and then is checked again when the dosage is increased.

An Overview of Cardura Dosing

The dose of Cardura® (doxazosin mesylate) that your healthcare provider recommends will vary, depending on a number of factors, including:
 
  • Your age
  • The medical condition you are being treated for
  • Other medical conditions you may have
  • Other medications you may be taking
  • How you respond to Cardura.
     

Specific Cardura Dosing Information

The following sections explain dosing guidelines for Cardura, both when the drug is started and for treating specific conditions.
  
Cardura Dosing to Start
When you first begin taking Cardura (for either BPH or hypertension), you will need to start at the lowest dose (1 mg daily). If you stop taking Cardura, even for just a few days, you will need to restart with the lowest dose to prevent side effects. After the first dose, your Cardura dose may be increased slowly.
 
Cardura Dosing for BPH
For benign prostatic hyperplasia (BPH), the dose may be increased to Cardura 2 mg a day if necessary. After that, the dose can be increased to 4 mg daily, and then 8 mg daily if needed. There should be at least one to two weeks in between dose increases, and your blood pressure should be checked each time. The maximum dose for BPH is Cardura 8 mg, taken once daily.
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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