Which of the following is long acting local anesthetic > 2hrs – a) Bupivacaineb) Prilocainec) Etidocained) Dibucainee) Tetracaine: (A) bce, (B) acde, (C) abcd, (D) abde
Answer is B. Short duration (< 30 min) :- Chlorprocaine, procaine.
Moderate duration (30-90 min) :- Lignocaine, mepivacaine, Prilocaine, cocaine.
Long duration (> 120 min) :- Bupivacaine, levobupivacaine, Tetracaine, Etodicaine, Ropivacaine, Dibucaine.