This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Autonomic nervous system, Subject name: Pharmacology
[{'content': 'Which of these Is not an FDA approved indication for use of modafinil as an adjunct? \nSelect and explain. \nA. Major depression and associated lethargy, B. Narcolepsy, C. Obstructive sleep apnea, D. Shift work disorder', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ref: KD Tripathi 7th edition Page no 487 Modafinil is a newer psychostimulant and it's approved indications are narcolepsy, sleep apnea syndrome and shift work syndrome. It is being evaluated as a drug to prevent relapse of cocaine dependence. It is not used for depression", 'role': 'assistant'}]