This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: AIIMS 2019, Subject name: Anaesthesia
Duration of action of proparacaine: 
Select and explain. 
A. 2min, B. 5min, C. 10min, D. 20min
D: 20min
Answer: D: 20min 
Explanation: Proparacaine (It is an ester containing LA) has fast onset (within 30 sec) and sho duration of action (10-20 minutes) Used in ophthalmic surgeries. Metabolized by pseudocholinesterase