terazosin

noun
te·​ra·​zo·​sin | \ tə-ˈrā-zə-ˌsin \

Medical Definition of terazosin 

: a drug taken orally in the form of its hydrated hydrochloride C19H25N5O4·HCl·2H2O in the treatment of benign prostatic hyperplasia and hypertension Other studies have shown that terazosin is more effective in smaller prostates, where contraction of smooth muscle is the major problem, while finasteride is more likely to be effective in larger prostates which contain many more epithelial cells.— Simeon Margolis, The Baltimore Sun, 26 Nov. 1996

Note: Terazosin is a derivative of quinazoline that acts to relax smooth muscle by combining with and blocking the activity of an alpha-receptor. It is marketed under the trademark Hytrin.

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