My Son is 2 year 6 months old and 3 months back he was found vitamin d3 deficient so I consulted a doctor and he gave vitamin d3 injection and 3 months course for vitamin d3 oral solution which I used to give him once a week. Now after 3 months his d3 oral solution was over so i just want to know is ot safe to give vitamin d3 tablet to him. If yes which tablet is best for him and how often I need give. So that he won't face such type of deficiency again. Thanks in advance