“…Cinnarizine can be used in scuba divers without an increased risk of central nervous system oxygen toxicity. The crystal structures of some related compounds viz., cinnarizine (Mouillé et al, 1975), cyclizine hydrochloride (Bertolasi et al, 1980), cinnarizinium dipicrate (Jasinski et al, 2011), cinnarizinium 3,5-dinitrosalicylate (Dayananda et al, 2012), cinnarizinium picrate (Song et al, 2012), have been reported. In view of the importance of cinnarizine, this paper reports the crystal structure of the title compound, C 26 H 30 N 2+ .…”