CALCITRIOL

Written By:P. Thirumal ReddyB. Pharm Reviewed By:Dr. Tejashwin AdigaMBBS

Last updated on 31 Mar 2026 | 09:31 AM (IST)

CALCITRIOL

Background and Date of approval CALCITRIOL

Calcitriol was initially approved by the United States Food and Drug Administration (FDA) on October 21, 1998.

Uses of CALCITRIOL

Calcitriol is used to manage conditions related to calcium and bone metabolism. It is prescribed for treating low blood calcium levels, addressing disorders like hypoparathyroidism, supporting bone health in chronic kidney disease, managing osteoporosis, addressing conditions like rickets and osteomalacia, and sometimes it helps in psoriasis treatment.

How is CALCITRIOL administered?

Calcitriol can be administered through oral ingestion as capsules or liquid, and intravenous injection. The exact dosage and treatment duration will depend on instructions provided by a healthcare professional.

Side Effects of CALCITRIOL

Calcitriol can cause various side effects. Common side effects include increased thirst, loss of appetite, nausea, vomiting, constipation, muscle weakness, headache, and dry mouth. Serious side effects can include hypercalcemia (elevated blood calcium levels), allergic reactions with rash and difficulty breathing, kidney stone formation, irregular heartbeat, and bone pain.

Warnings

Calcitriol use include the risk of hypercalcemia (high blood calcium levels), which can lead to serious health issues like kidney stones and cardiac abnormalities. Long-term use might affect bone health, and liver function could impact its metabolism. Allergic reactions like rash, swelling, or breathing difficulties are also possible. Excessive amounts of diet can impact the effects of this medication.

Precautions

Monitoring calcium levels is essential. Calcitriol should be used cautiously in patients with impaired kidney function and always vonsult the health care provuder for dosage adjustments. Individuals with lung conditions like sarcoidosis also require monitoring by the health care provider due to potential effects on calcium levels. Allergic reactions are possible, so seek medical attention if you experience rash, swelling, or breathing difficulties. Pregnant and breastfeeding individuals should consult their doctors before using this medication.

Word of Advice

Consult a healthcare professional before starting Calcitriol, especially if you are pregnant or breastfeeding mother. Take the amount your doctor recommends and follow the directions. Be careful if you are taking blood thinners, blood pressure medications, or cholesterol drugs. Serious reactions like allergies, tummy troubles, or low blood pressure are rare but possible. If allergic reactions they happen, stop using it and see a doctor. Keep checking in with your doctor, especially if you might get a little upset stomach, headache, diarrhea, or trouble sleeping. They will help you decide if you still need to take it. Before starting this medication, tell your doctor about your health history and other supplements.

Frequently Asked Questions

Q1.

Can Calcitriol have side effects?

Excessive calcitriol supplementation can lead to hypercalcemia (high blood calcium levels), resulting in symptoms like kidney stones, gastrointestinal issues, and calcium deposits in soft tissues. Proper dosing and medical supervision are crucial.

Q2.

How does Calcitriol interact with parathyroid hormone (PTH)?

Calcitriol and PTH work together to regulate calcium homeostasis. When blood calcium is low, PTH stimulates the production of calcitriol, which then helps increase calcium absorption from the intestines and prevents excessive calcium loss in the urine.

Q3.

Is calcitriol used in kidney disease?

Yes, calcitriol is used in managing kidney disease, particularly renal osteodystrophy, which can occur due to kidney dysfunction. It helps maintain bone health and mineral balance in patients with impaired kidney function.

Q4.

Can I take Calcitriol supplements without a prescription?

It's important to consult a healthcare professional before taking any supplements, including calcitriol. Self-supplementation without medical guidance can lead to imbalances and adverse effects.

Q5.

Are there natural sources of Calcitriol?

While calcitriol is synthesized in the body, its precursor, vitamin D3, is obtained from dietary sources like fatty fish, egg yolks, and fortified dairy products. Sunlight exposure also triggers the production of vitamin D in the skin.

References

Hospira, Inc., US Food & Drug Administration, [Revised on 03/2012] [Accessed on 21st August 2023], https://www.accessdata.fda.gov/drugsatfda_docs/label/2012/018874s022lbl.pdf

Disclaimer

The drug information on this page is not a substitute for medical advice, it is meant for educational purposes only. For further details, consult your doctor about your medical condition to know if you can receive this treatment.

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