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
Concentration of diethylcarbomazine in DEC medicated salt in endemic filariasis is 
Select and explain. 
A. 2-4 gm/kg, B. 3-6 gm/kg, C. 5- 1 0 gm/kg, D. 10- 15 gm/kg
A: 2-4 gm/kg
Answer: A: 2-4 gm/kg 
Explanation: Ans. is 'a' i.e., 2-4 gm/kg o The use of DEC-medicated salt is a special form of mass treatment using very low doses of drug over a long period of time. o Common salt medicated with 1-4g of DEC per kg has been used for filariasis control in endemic areas of W. bancrofti and B malayi, paicularly in Lakshadweep islands. o Treatment should be continued for at least 6-9 months.