Oral administration for adults, 0.0 1 ~ 0.02 mg (400 ~ 800 units) per day.

For children, if the daily intake is less than 0.0025 mg (100 unit), it should be 0.0 125 ~ 0.025 mg (500- 1000 unit) from the third week after birth. If you can't take it orally, you can inject 5 mg of vitamin D every month or every other month (200,000 units); Breast-fed infants, oral, 0.0 1 mg (400 units) per day.

(2) treatment of vitamin D deficiency

Adults take 0.025 ~ 0.05 mg (1000 ~ 2000 units) orally every day, and then reduce it to 0.0 1 mg (400 units) every day.

Children's daily dose is 0.025 ~ 0. 1 mg (1000 ~ 4000 units), and then it is reduced to 0.0 1 mg (400 units) per day.