Terfenadine

**Definition:** A selective histamine H1-receptor antagonist devoid of central nervous system depressant activity. The drug was used for ALLERGY but withdrawn due to causing LONG QT SYNDROME.

**Tree numbers:** - D02.455.426.559.389.115.800 - D03.383.621.855

**Synonyms:** - alpha-(4-(1,1-Dimethylethyl)phenyl)-4-(hydroxydiphenylmethyl)-1-piperdinebutanol - Terfenidine