Drug
Calcitriol
Pronounced
"kal-SIT-ree-ole"
Side Effects
Nausea, headache, constipation, or pain/discomfort at the injection site may occur. If any of these effects last or get worse, tell your doctor promptly.
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: back/bone/joint/muscle pain, dry mouth, metallic taste, vomiting, sleepiness, weakness, loss of appetite, dizziness, eye pain/redness/sensitivity to light, fever, fast/slow/irregular heartbeat, decreased interest in sex, mental/mood changes (such as confusion), stomach/abdominal pain, swelling of the ankles/feet/hands (edema), increased thirst, signs of kidney problems (such as change in the amount of urine), weight loss.
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Precautions
Before using 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.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: high calcium levels (hypercalcemia), heart problems (such as irregular heartbeat, coronary artery disease), kidney disease (such as 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 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 breastfeeding.