This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Pharmacology
Long acting corticosteroid is - 
Select and explain. 
A. Triamcinolone, B. Betamethasone, C. Hydrocortisone, D. Prednisolone
B: Betamethasone
Answer: B: Betamethasone 
Explanation: Ans. is 'b' i.e., Betamethasone o Short acting glucocorticoids (t 1/2 .6 : 8-12 hrs.) : Cortisol, hydrocortisone.o Intermediate acting glucocorticoids (t 1/2 : 12-36 hrs.) : Prednisolone, methylprednisolone, triamcinolone.o Long acting glucocorticoids (t 1/2 : 36-54 hrs.) : Dexametkasone, betamethasone.