There was described the application of Biozym SE used as an enzymatic washing supplement in makin up macerative and corrosive preparations. It was found that the application of 10 per cent of Biozym SE mixed with water allowed to obtain very good results in a short time if during the process the temperature was maintained between 55—60°C. Fresh and frozen materials and also conserved in alcohol but not in formalin could be subjected to maceration. Biozym could be used with success for tissue corrosion while making some drugs ready for injections, e.g. a hardened resin Technovit 7001 (Kulzer).