This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hypolipidemic, Subject name: Pharmacology
Which of the following lipid lowering agent acts via HMG CoA reductase? 
Select and explain. 
A. Niacin, B. Statins, C. Fibric acid derivatives, D. Bile acid Sequestrant
B: Statins
Answer: B: Statins 
Explanation: Ans. B. StatinsStatins are the drugs which inhibit the HMG CoA reductase enzyme. Niacin inhibit the lipase. Fibrates stimulate the PPAR alpha and bile acid Sequestrant binds bile acid in GIT.