In course of the anaesthesia of orthopaedic and general surgery operations, the author administered Norcuron injection in 80 cases for the purpose of intubation and/or surgical myorelaxation. On account of the observation of the usual parameters, he found Norcuron to be a product meeting the expectations, furnishing myorelaxation of medium length that did not cause adverse alterations, in circulation neither did it have other unpleasant side- or after-effect. The author applied a so-called priming dose system by which the time required for intubation could be appreciably shortened. He recommends this procedure to others, too.