Doxazosin mesylate - Cardura
Pregnancy Category B
Alpha adrenergic-blocking agent
Mechanism of action
Selectively blocks postsynaptic alpha1-adrenergic receptors, leading to vasodilatation without reflex tachycardia, it does not block alpha2 presynaptic receptors. Increases HDL and the HDL to cholesterol ratio, while lowering total cholesterol and LDL, making it desirable for patients with atherosclerosis or hyperlipidemia.
Treatment of mild to moderate hypertension
Use caution in the presence of allergy to doxazosin, CHF, renal failure, hepatic impairment.
Initial syncopal attack (First Dose Phenomenon)
Alpha blocking effects: nasal congestion, failure of ejaculation, postural hypotension
Sodium and water retention leading to edema (add a diuretic).
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