坦索罗辛 (Flomax, Jalyn)

概览

Tamsulosin is an alpha-1A and alpha-1B adrenergic receptor antagonist used to treat benign prostatic hyperplasia, ureteral stones, prostatitis, and female voiding dysfunction.

作用机制

Tamsulosin is a blocker of alpha-1A and alpha-1D adrenoceptors. About 70% of the alpha-1 adrenoceptors in the prostate are of the alpha-1A subtype. By blocking these adrenoceptors, smooth muscle in the prostate is relaxed and urinary flow is improved. The blocking of alpha-1D adrenoceptors relaxes the detrusor muscles of the bladder which prevents storage symptoms. The specificity of tamsulosin focuses the effects to the target area while minimizing effects in other areas.

适应症

Tamsulosin is indicated for the treatment of signs and symptoms of benign prostatic hyperplasia. Tamsulosin is also used off label for the treatment of ureteral stones, prostatitis, and female voiding dysfunction.

• Benign Prostatic Hyperplasia (BPH)
• Benign Prostatic Hypertrophy
• Bladder Outlet Obstruction
• Ureteral Calculus