rn On the off chance that its not indeed inconvenience direct your specialist before taking any medication. Cardura 4mg 20 Tabs Generic Name: doxazosin (dox AY zo sin) Brand Names: Cardura, Cardura XL What is doxazosin? Doxazosin is in a social affair of pharmaceuticals called alpha-adrenergic blockers. Doxazosin causes the (veins and supply courses) to loosen up and stretch, upgrading circulatory system. Doxazosin moreover loosens up muscles in the prostate and bladder neck, making it less requesting to urinate. Doxazosin is used to treat (hypertension) and ideal prostatic hyperplasia (created prostate). Doxazosin may in like manner be used for purposes other than those recorded in this medicine associate.