A more coherent development of clinical psychopharmacology and a generalisation of its results, limited by the variability and approximation of judgments, become possible through a standardisation of evaluation methods for mental troubles. The AMDP system is a sensible enough instrument to apply statistical methods in clinical psychopharmacology. The french version, elaborated and revised by psychiatrists of different nationality, language and background, should favor communication of informations in this area and should validate it.