Risperidon skal på grund af øget risiko for sedation anvendes med forsigtighed i kombination med andre centralt virkende stoffer, særligt alkohol, opioider, antihistaminer og benzodiazepiner.
Risperidone should be used with caution in combination with other centrally-acting substances notably including alcohol, opiates, antihistamines and benzodiazepines due to the increased risk of sedation.