Oppositional defiant disorder (ODD), one of the psychiatric disorders frequently encountered in childhood, is Accessories a disruptive behaviour disorder involving emotional and behavioural problems.Children with ODD may experience difficulty in controlling anger and are generally disobedient and defiant of other people.Risperidone, an atypical antipsychotic agent is a dopamine and serotonin 2A receptor antagonist, is used in the treatment of disruptive behavioural disorders in which aggressive or other disruptive behaviours predominate (aggressive symptoms, self-harm, anger episodes, GIRLS SNOW sudden mood changes, etc.).We discuss a case of tic disorder developing following risperidone use during treatment of a child diagnosed with ODD.