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  • Title: Urapidil, a dual-acting antihypertensive agent: Current usage considerations.
    Author: Buch J.
    Journal: Adv Ther; 2010 Jul; 27(7):426-43. PubMed ID: 20652659.
    Abstract:
    Despite the availability of a wide range of effective blood pressure (BP)-lowering agents, a substantial proportion of patients with hypertension fail to achieve target BP levels. The majority of patients with hypertension need a combination of two or more drugs to achieve BP targets and choice of second-line or subsequent-line therapy is an important consideration in hypertension management. Alpha-1-adrenoreceptor antagonists (alpha-blockers) have a BP-lowering effect broadly similar to the other antihypertensive drug classes and are effective as add-on therapy in patients with inadequately controlled hypertension. Alpha-blockers may also have therapeutic benefits that go beyond BP control, including improvements in lipid profile and glucose metabolism, as well as reducing the symptoms of benign prostatic hyperplasia. Urapidil has an alpha-blocking effect but, unlike other alpha-blockers, also has a central sympatholytic effect mediated via stimulation of serotonin 5HT(1A) receptors in the central nervous system. Several studies have suggested that oral urapidil is effective and well tolerated when used as second-line therapy in patients with BP inadequately controlled with other agents. Urapidil has also been shown to improve glucose and lipid metabolism in hypertensive patients with concomitant diabetes and/or hyperlipidemia. Intravenous urapidil is effective in the treatment of hypertensive crises, perioperative hypertension, and pre-eclampsia and may have a potential role in the management of acute stroke. In this review, the use of alpha-blockers in hypertension is discussed, with particular focus on urapidil for the lowering of BP in a variety of clinical settings.
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