Description
A selective histamine H3 receptor antagonist (Ki = 0.17 nM in rat cortical membranes); reduces inhibition of electrically induced contractions in isolated guinea pig ileum longitudinal muscle by (R)-α-methylhistamine at 0.3, 0.1, and 3 nM; decreases the duration of the tonic, clonic, and convulsive coma phases of electrically induced convulsions in mice at 1 and 3 mg/kg, an effect that can be blocked by (R)-α-methylhistamine or imetit; increases GABA release and inhibits NMDA-induced neurotoxicity in primary rat cortical neurons at 0.1 µM