This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anaesthesia, Subject name: Anaesthesia
IV administration of which drug is most painful among the following 
Select and explain. 
A. Methohexitol, B. Propofol, C. Etomidate, D. Ketamine
B: Propofol
Answer: B: Propofol 
Explanation: * Pain on injection is the most commonly repoed adverse event during propofol administration. Not seen with etomidate due to use of etomidate in lipid emulsion vehicle. Ref:- Stoelting's Pharmacology and Physiology in Anesthetic Practice 5th edition Pg num:- 168,170