The functional deterioration is observed in the majority of the patients with schizophrenia and much importance is given in this diagnosis when a retrospective analysis is carried out on the history of this disease. The value scales have been an important key at the time of detecting deteriorating elements, being these very useful as a screening tool and hence a development control.

The objective is to demonstrate the good management of the use of the scales of which we have available and in this way can value the functionality of the psychotic patients as well as it's evolution.

When choosing the medication, the degree of functionality measured by means of the use of the scales- confirmed a 65% an initial better response to the antipsychotics paliperidona, that in that not used drug, that initially showed an improvement of 40%.

A retrospective study was carried out in the last year with the 82 patients of our CSM with schizophrenia diagnosis, all treated with antipsychotics.The Sample was divided into two groups of 41 patients, those of which besides the medication had been evaluated and followed by means of scales and the other in which they only took medication, with standard pursuit.

The ease of use of scales as well as its great utility should help to promote its routine use to be able to obtain an improvement of the function of the patient and, to optimize the long-term prognosis for patients.