Methapyrilene

**Definition:** Histamine H1 antagonist with sedative action used as a hypnotic and in allergies.

**Tree numbers:** - D02.092.782.258.368.500 - D03.383.725.050.440

**Synonyms:** - Thenylpyramine - N,N-Dimethyl-N'-2-pyridinyl-N'-(2-thienylmethyl)-1,2-ethanediamine