[Dynamic light-evoked pupillometry for the differentiation of psychotropic substances]

In a double-blind placebo-controlled study 100 mg zotepine (neuroleptic) were administered to 15 young healthy volunteers; another 15 volunteers received 200 mg moclobemide (Ro 11-1163) (MAO-inhibitor). At the certain days of investigation the light-evoked pupillary reactions were recorded prior to and 2, 4, 6, and 8 h after medication. Using the dynamic pupillometric method it was possible to differentiate between zotepine and moclobemide in view of autonomous activation.