Transcutaneous electrical stimulation with Limoge current potentiates morphine analgesia and attenuates opiate abstinence syndrome.

Transcutaneous electrostimulation is a somewhat controversial technique used in the management of the opiate withdrawal syndrome. We report an animal study of a particular transcutaneous electrostimulation called transcutaneous cranial electrostimulation, based on a technique used for many years on heroin addicts for the rapid severance of their addiction, which has been validated in a clinical setting by a double-blind trial. This technique involves the application of an intermittent high-frequency current (Limoge's current). Our experimental data show that this transcutaneous cranial electrostimulation increases morphine analgesia by threefold on the tail flick latency measure and produces a 48% attenuation of the abstinence syndrome observed after abrupt cessation of morphine administration. These results were obtained using a double-blind paradigm.