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: Social & Preventive Medicine
Chemoprohylaxis of chloroquine includes - 
Select and explain. 
A. 300 mg BD/week, B. 600 mg OD/week, C. 600 mg/week, D. 300 mg OD/week
D: 300 mg OD/week
Answer: D: 300 mg OD/week 
Explanation: Ans. is `d' i.e., 300 mg OD/week Drug Dose for chemoprophylaxis Chloroquine 300 mg (3 tablets of 100 mg or 2 tablets of 150 mg) once a week or 100 mg/day for 6 day every week Proguanil 400 mg per day (2 tablets of 200 mg) Mefloquine 250 mg once a week Doxycycline 100 mg per day.