“…Risk factors for torsades de pointes include inherent risk of the drug, higher doses, rapid upward titration, rapid IV infusion, female gender, electrolyte disturbance, bradycardia, concomitant QT-prolonging drugs, ion-channel polymorphisms, and patients with congenital long QT syndrome caused by ion channel mutations ( 45 , 46 ). Moreover, the use of the antipsychotic chlorpromazine in pediatric patients causes numerous drug interactions, ineffectiveness, inappropriate doses, and side effects ( 47 ). → For procedural sedation, nitrous oxide is a practical adjunct widely used in dental procedures.…”