<prompt> What is the dose of vitamin A at 9 months -50000 IU1 Lakh IU2Lakh IU4 lakh IU  <response>: Ans. is b i.e., 1 Lakh IU Requirement and doseso The daily requirement of vitamin A for infant is 300-400 pg, children is 400-600 mg and adolescents is 750 mg.o For treatment of vitamin A deficiency, oral vitamin A is given at a dose of 50000 IU, 100000 IU and 200000 IU in children 6 months, 6-12 months and 1 year, respectively. The same dose is repeated next day and 4 weeks later.o For prevention vitamin-A prophylaxis programme a total of 9 doses of vitamin-A are given between the age of 9 months to 5 years. The first dose 1 lakh units is given at 9 months of age along with measles vaccination. The second dose 2 lakh units is given along with DPTOPV booster doses at 18 months. Subsequent doses 2 lakh units each are given at six months interval upto 5 years age. 