This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
Which one of the following anaesthetic agents does not trigger malignant hypehermia ? 
Select and explain. 
A. Halothane, B. Isotlurane, C. Suxamethonium, D. Thiopentone
D: Thiopentone
Answer: D: Thiopentone 
Explanation: Ans. is 'd' i.e., Thiopentone Drugs causing Malignant hypehermia Succinylcholine Enflurane Methoxyflurane Phenothiazines Halothane Sevoflurane MAO inhibitors Lignocaine Isoflurane Destlurane TCA o Succinylcholine is the most common cause of MH. o Amongst anaesthetics, halothane is most common cause. o Combination of Sch and Halothane has a much higher incidence.