Desoxypeganine and its pharmaceutically acceptable acid addition salts can be used in the treatment of drug addiction or drug dependence. In one embodiment, the apparatus includes a guide removably attachable to a bone, and a rotatable mill coupled to the guide. Thus according to the apparatus and methods according to the present invention, the traditional principals of the Second Law is further refined and higher operating efficiencies achieved. The audio identification message can be recorded by a user of the second communication device. For biopolymers, where the loss of fragments can be identified due to their mass, the names or abbreviations of lost molecule fragments can be entered. The thin film magnetic head has, in order in a stacked direction, a first magnetic shield layer, a magnetoresistive element, a second magnetic shield layer, a third magnetic shield layer, a main magnetic pole layer and a return yoke layer.