Utilizing emetine as an unconditioned stimulus and beverage alcohol as a conditioned stimulus a satisfactory aversion to alcohol was effected in 20 chronic alcoholics who underwent conditioning in groups of 4. External inhibitory factors related to a group situation appear to be mitigated by the strong element of suggestion of seeing another retch and regurgitate. Of 10 patients adequately followed for 8 months, 5 remained abstinent, 3 had brief relapses, and 2 shortly after treatment resumed their former drinking pattern. In addition to the advantage of extending this therapy to greater numbers of suitable individuals, group conditioning promotes positive group identity which could function as a motivation for these patients to continue post-conditioning group psychotherapy.