Current opinion in urology · 2012
α-Blockers for benign prostatic hyperplasia: the new era.
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Lepor Herbert, Kazzazi Amir, Djavan Bob
Аннотация
PURPOSE OF REVIEW: α1-Adrenoceptor blockers are the most frequently prescribed medical therapy in the treatment of lower urinary tract symptom suggestive of benign prostatic hyperplasia (LUTS/BPH). The purpose of this review is to highlight the evolution of adrenoceptor blockers with emphasis on newly approved drugs.
RECENT FINDINGS: Over the past years new formulations of several α1-adrenoceptor blockers were introduced to the market. Five long-acting α1-blockers are currently approved by the Food and Drug Administration for treatment of symptomatic LUTS/BPH: terazosin, doxazosin, tamsulosin, alfuzosin and silodosin. Silodosin is the only adrenoceptor blocker that exhibits true selectivity for the α1-adrenoceptor subtypes. This unique adrenoceptor selectivity profile likely accounts for the very favorable cardiovascular safety profile.
SUMMARY: Tamsulosin, alfuzosin slow release and silodosin do not require dose titration. Alfuzosin, terazosin, doxazosin and silodosin have all been shown to be effective in relieving LUTS/BPH independent of prostate size. Low incidence of orthostatic hypotension has been reported for silodosin, but abnormal ejaculation is the most commonly reported adverse effect.
RECENT FINDINGS: Over the past years new formulations of several α1-adrenoceptor blockers were introduced to the market. Five long-acting α1-blockers are currently approved by the Food and Drug Administration for treatment of symptomatic LUTS/BPH: terazosin, doxazosin, tamsulosin, alfuzosin and silodosin. Silodosin is the only adrenoceptor blocker that exhibits true selectivity for the α1-adrenoceptor subtypes. This unique adrenoceptor selectivity profile likely accounts for the very favorable cardiovascular safety profile.
SUMMARY: Tamsulosin, alfuzosin slow release and silodosin do not require dose titration. Alfuzosin, terazosin, doxazosin and silodosin have all been shown to be effective in relieving LUTS/BPH independent of prostate size. Low incidence of orthostatic hypotension has been reported for silodosin, but abnormal ejaculation is the most commonly reported adverse effect.