 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST]  to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.The uses of Zemplar Oral: Paricalcitol is used to treat and prevent high levels of a certain natural substance made by the body (parathyroid hormone) in patients with long-term kidney disease. In these patients, the high level of parathyroid hormone is caused by a low level of calcium and a certain kind of vitamin D. Too much parathyroid hormone can cause serious problems such as bone disorders. Paricalcitol is a man-made form of vitamin D. It helps to reduce parathyroid hormone levels and may help your body absorb calcium and phosphorus. How to use Zemplar Take this medication by mouth with or without food as directed by your doctor, usually once daily or 3 times a week. If you are taking this medication 3 times a week, do not take it more often than every other day. The dosage is based on your medical condition, lab tests, and response to treatment. Use this medication regularly in order to get the most benefit from it. To help you remember, take it at the same time each day. If you are taking this medication on a schedule other </s>