This paper describes the use of hypnosis with an injecting heroin user. This client was finding it very difficult to keep to his methadone prescription and was frequently using heroin ‘on top’. He received three sessions of hypnosis in order to facilitate relaxation and visualization, and resolution of ambivalence concerning his drug use. The results suggest the client has responded well to treatment. Details both of the client and of the three hypnosis sessions are given and the outcome is discussed. Copyright © 1996 British Society of Experimental and Clinical Hypnosis