This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Concept of health and disease, Subject name: Social & Preventive Medicine
[{'content': 'The drug recommended for chemoprophylaxis 1 day before induction into high altitude areas is \nSelect and explain. \nA. Acetazolamide, B. Furosamide, C. Doxycycline, D. Paracetamol', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Acetazolamide is the drug of choice for Acute Mountain Sickness prevention. It inhibits renal carbonic anhydrase, causing a prompt bicarbonate diuresis that leads to metabolic acidosis and hyperventilation.Acetazolamide (125-250 mg twice a day), administered for 1 day before ascent and continued for 2 or 3 days, is effective. Higher doses are not required.Ref: Harrison&;s principles of Internal Medicine; 19th edition; Chapter 476e Altitude Illness', 'role': 'assistant'}]