All are vasodilators except.: (A) Procaine, (B) Lidocaine, (C) Cocaine, (D) Chlorprocaine
Answer is C. Ans. (C) Cocaine(Ref: Katzung 11th/e p448)All local anaesthetics cause vasodilation except cocaine. It blocks reuptake of nor-adrenaline and result in sympathetic overactivity. Therefore, cocaine can cause hypertension and cardiac arrhythmias.