Procedure for the preparation of the amorphy form of a pharmaco.

Method for preparing an amorphous form of a pharmaceutical active ingredient comprising: a) providing a chamber having a pressure of less than about 760 mmHg and a temperature of less than about 100 ° C, wherein the chamber has a stirrer and an inlet; b) feed a solution of the pharmaceutical active ingredient having a concentration of more than about 20% m / m, at a flow rate between about 10 and about 50 cm3 / hour / inlet to obtain an amorphous form such as a sponge or a solid; and c) stir the sponge or solid with the stirrer to obtain an amorphous powder.