Take Meditrol capsules by mouth with or without food, usually once daily or as directed by your doctor.
Dosage is on your medical condition and response to therapy. Your doctor may start you on a low dose and adjust the dose slowly to find the best amount for you. Follow your doctor’s directions carefully. Use this medication regularly to get the most benefit from it. To help you remember, take it at the same time each day.
It is essential to follow the diet recommended by your doctor to benefit from this medication and prevent serious side effects. Do not take other supplements/vitamins unless ordered by your doctor.
Certain medications can decrease the absorption of vitamin D. Therefore, separate your doses of these medications as far as possible from your doses of meditrol. It may be easiest to take calcitriol at bedtime if you are also taking these other medications. Ask your doctor or pharmacist about finding a good dosing schedule that will work with all your medications.
Meditrol does not usually have side effects. Your doctor may check your calcium and phosphate blood levels and adjust your dose if you have side effects.
Remember that your doctor has prescribed this medication because they have judged that your benefit 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 any of these unlikely but severe side effects occur: loss of appetite, back/bone/joint/muscle pain, constipation, dry mouth, eye pain/redness/sensitivity to light, headache, fast/slow/irregular heartbeat, nausea/vimiting/diarrhea, sleepiness, stomach/abdominal pain, increased thirst, signs of kidneyproblems (such as a change in the amount of urine), weakness.
A severe allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a severe allergic reaction may include rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, breathing.
Before taking calcitriol, tell your doctor or pharmacist if you are allergic to it; or to other vitamin D products; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: high calcium levels.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: heart disease (e.g., irregular heartbeat, coronary artery disease), kidney disease, kidney stones.
Notify your doctor beforehand if you will be having surgery or will be confined to a chair/bed (immobile) for a long time. Being immobile for long periods of time increases your risk of side effects.
Be sure to drink plenty of fluids unless otherwise directed by your doctor.
During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.
It is unknown if this drug passes into breast milk. Consult your doctor before breast-feeding.
Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor’s approval.
Some products that may interact with this drug include: burosumab, cardiac glycosides (e.g., dixogin, digitalis), magnesium-containing medications (e.g., antacids, milk of magnesia), phosphate binders, vitamins/nutritional supplements(especially calcium and vitamin D), drugs that can speed up the removal of calcitriol from your body (e.g., ketoconazole, phenobarbital, phenytoin).
Check the labels on all your prescription and nonprescription/herbal products (e.g., antacids, laxatives, vitamins) because they may contain calcium, magnesium, phosphate, and vitamin D. Ask your pharmacist about using those products safely.
Calcitriol is very similar to other forms of vitamin D. Do not use medications containing other forms of vitamin D while using calcitriol.
This medication may interfere with certain laboratory tests (e.g., cholesterol test), possibly causing false test results. Make sure laboratory personnel and all your doctors know you use this drug.