This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Other topics and Adverse effects, Subject name: Anatomy
Which of the following drugs are useful for long term treatment of congestive hea failure 
Select and explain. 
A. Digoxin, B. Ramipril, C. Dobutamine, D. Spironolactone
C: Dobutamine
Answer: C: Dobutamine 
Explanation: Dobutamine (Ref: KDT 6/e p507) Dobutamine is indicated only for the acute treatment of decompensated CHF. Cardiac glycosides (digoxin) can be used for acute treatment as well as maintenance therapy of CHF. ACE inhibitors and spironolactone are indicated only for chronic CHF.