Alfacalcitol tablets are taken half an hour after meals. Alfa Osteocortisol Tablets are taken orally and do not require metabolic activation to be quickly absorbed by the small intestine, so taking this medication half an hour after a meal, when the food is almost digested, will help the gastrointestinal tract absorb the medication. In addition, it can also help reduce the irritation of the drug on the gastrointestinal tract. Alfacalcitol tablets are mainly used for the treatment of osteoporosis, rickets and other calcium deficiency diseases, can promote the absorption of calcium and vitamins, help calcium can be maximized absorption and utilization. It should be noted that if patients take this drug orally for a long period of time, they must be timely rechecked and have regular blood tests to prevent hypercalcemia and hyperphosphatemia. This drug should be used under the guidance of a doctor, if there are uncomfortable symptoms, should consult a doctor in a timely manner, so as not to delay the condition.