Hi my son is 25 months old ,weighs 10 kg. Because of his underweight my pead. Gave him pediasure advance 400 ml daily+4grains+2servings of fruit+1egg+vegetable stock. But my son has problem of frequent vomiting. So she tol to give domstal 3 ml thrice. For 5 days. Then stop five days. Then continue again 5 days. Like this for a month. So,i am little worried that should I give him domstal after every five days. Even if he doesn't vomit. Will it be safe. M very confused. Please help. What should I do.