 <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] , take it at the same time each day. If you are taking this medication on a schedule other than every day (such as 3 times a week), it may help to mark your calendar with a reminder. It is very important to follow the diet recommended by your doctor to get the most benefit from this medication and to prevent serious side effects. Do not take other supplements/vitamins (such as calcium, vitamin D) unless ordered by your doctor.The side effects of Zemplar Oral: Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects. Tell your doctor right away if you have any serious side effects, including: fast/slow/irregular heartbeat, seizures, weakness, loss of appetite, back/bone/joint/muscle pain, constipation, dry mouth, eye pain/redness/sensitivity to light, headache, nausea/vomiting, drowsiness, stomach/abdominal pain, increased thirst, signs of kidney problems (such as change in the amount of urine), mental/mood changes (such as psychosis). A very serious allergic reaction to this drug is rare. </s>