[New studies on the use of antidepressants].

The new data on the use of antidepressant drugs concern:--a precise characterization of the therapeutic spectrum of the antidepressant, --the knowledge of the mechanism of action of the drug,--the biochemical profile of the depression,--the pharmacokinetic data about the efficient plasmatic level of the anti-depressant: it is important to take into account the metabolism of the drug and its route of administration,--the discovery of new antidepressants different from tricyclis and I.M.A.O. inhibitors.