Effexor - antidepressant. Active ingredient - venlafaxine and its main metabolite O-desmetilvenlafaxine which are strong inhibitors of the return serotonin reuptake and noradrenaline and weak inhibitors of the return capture of a dopamine. It is considered that the mechanism of antidepressive action is connected with ability of drug to strengthen transfer of nervous impulses in CNS.

Olanzapine is an antipsychotic drug (neuroleptic). It is shown in schizophrenia in adults, psychotic disorders, bipolar affective disorder in adults, depressive states.