Editorial. Intellectual disability affects about 1 million people in England. People with intellectual disability are more likely to develop a mental disorder and often have multimorbity.1 Appropriate drug treatment of mental illness is important, but recent evidence confirms an over-reliance on psychotropic drugs, particularly antipsychotics, for challenging behaviour when no mental illness has been recorded. Such use is off-licence and unsupported by empirical evidence.2 Overuse of medication is concerning as people with intellectual disability are more sensitive to unwanted side effects3 and often lack capacity to consent to treatment. To read the full article, log in using your NHS OpenAthens details.