Transdermal Electroacupuncture for Opioid Detoxification

Participants are randomly assigned to receive either active or sham electroacupuncture using the Han's Acupoint Nerve Stimulator (HANS) device. The HANS method uses a non-invasive device that emits a constant electric current transcutaneously via skin electrodes to stimulate relevant acupoints: Heku (LI4) / Laogong (P8) on one hand and Neiguan (P6) / Waiguan (TE 5) on the opposite arm. Stimulation is delivered in the dense-and-disperse mode, alternating between 2 and 100 Hz at 3-second intervals. Participants receive thrice daily treatments for 4 days during inpatient opioid detoxification.