Abstract: The invention refers to a solution of the problem that during a longer time prevail upon alcoholics or other drug abusers to refrain from alcohol or other drug. Methods and devices to prevent that a person utilises a drug comprises that a punishing unit is fixed to the person in such a way that the punishing unit not without difficulty can be removed, that a sensing or test unit which according to predetermined criteria detects the existence of drug use by the person is provided outside the body of a person, and that the sensing or test unit is arranged to communicate with the punishing unit and control it. The punishing unit can comprise means for brining out negative reactions in the person, for example in the form of an electric stimulator.

Abstract: The invention refers to a solution of the problem to induce alcoholics or other drug abusers to refrain from alcohol or other drug during a longer period of time. Thus it consists of an implantable device for preventing a person from using a drug, which includes means to detect the drug in question in the body of the person or a substance that is dependent of the existence of the drug and means thereby to emit a preparation stored in the device or electric pulses with such effect and dosage that negative reactions are brought about in the person.