This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anaesthesia, Subject name: Pharmacology
Which of the following drug can inhibit steroidogenesis? 
Select and explain. 
A. Etomidate, B. Thiopentone, C. Propofol, D. Ketamine
A: Etomidate
Answer: A: Etomidate 
Explanation: Etomidate suppresses the production of coisol and other steroids by inhibiting adrenal enzymes. Long-term infusion of Etomidate can inhibit adrenal enzyme but induction doses of Etomidate can cause slight reduction in coisol level. So Etomidate is not recommended for long-term infusion due to inhibition of steroidogenesis.