Calcitriol (By mouth)

There may be other brand names for this medicine.

This medicine is not right for everyone. Do not use it if you had an allergic reaction to calcitriol or to vitamin D.

Take your medicine as directed. Your dose may need to be changed several times to find what works best for you.
Measure the oral liquid medicine with a marked measuring spoon, oral syringe, or medicine cup.
Missed dose: Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose.
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.

Do not take vitamins, calcium supplements, or other forms of vitamin D while you are taking calcitriol. If you are on dialysis, do not take antacids that contain magnesium while you are taking calcitriol.
Some medicines can affect how calcitriol works. Tell your doctor if you are taking any of the following:
- Cholestyramine
- Digitalis
- Diuretics (water pills), such as hydrochlorothiazide (HCTZ)
- Ketoconazole
- Phenytoin or phenobarbital
- Steroids, such as hydrocortisone, methylprednisolone, prednisone

Tell your doctor if you are pregnant, breastfeeding, or have any medical problems.
Do not use more calcitriol than your doctor ordered. Too much of this medicine may cause a dangerous amount of calcium to build up in your body.
If you are not on dialysis, drink extra liquids to prevent dehydration. Ask your doctor how much liquid to drink each day.
Keep all medicine out of the reach of children. Never share your medicine with anyone.

Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
Bone or muscle pain
Cloudy or foaming urine
Irregular heartbeat
Nausea and vomiting, long-lasting headache, constipation, sleepiness, weakness
Severe stomach pain, metallic taste in your mouth
Seizures

Last Updated: 1/27/2017