{"id":"daily-dose-of-cholecalciferol-per-os","safety":{"commonSideEffects":[{"rate":null,"effect":"Hypercalcemia"},{"rate":null,"effect":"Hypercalciuria"},{"rate":null,"effect":"Nausea"},{"rate":null,"effect":"Constipation"},{"rate":null,"effect":"Headache"}]},"_chembl":{"chemblId":"CHEMBL1042","moleculeType":"Small molecule","molecularWeight":"384.65"},"_dailymed":null,"mechanism":{"_ai_source":"claude-haiku-4.5","explanation":"Cholecalciferol is a fat-soluble vitamin that undergoes hydroxylation in the liver and kidneys to form the active hormone calcitriol (1,25-dihydroxyvitamin D3). This active metabolite binds to the vitamin D receptor (VDR) in target tissues, promoting intestinal calcium and phosphate absorption, bone mineralization, and immune cell differentiation and function. 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