Which of the following is not an anesthetic that acts for more than 2hrs?: (A) Bupivacaine, (B) Prilocaine, (C) Etidocaine, (D) Tetracaine
Answer is B. Prilocaine have only intermediate duration and potency (30-90 min). Tetracaine, Bupivacaine, Etidocaine have long duration and potency (>120 min). Ref: Miller Anaesthesia, 5th Edition, Page 586.