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 of the following can lead to Megaloblastic anemia? 
Select and explain. 
A. Dorzolamide, B. Chlorthiazide, C. Triamterene, D. Canrenone
C: Triamterene
Answer: C: Triamterene 
Explanation: Triamterene is a ENaC blocker and also a folate antagonist, hence can lead to megaloblastic anemia.