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Written By
P. Thirumal Reddy
B. Pharm

Reviewed By
Dr. Tejashwin Adiga
MBBS
Last updated : 31 Mar 2026 | 09:30 AM (IST)

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CALCIUM,ALFACALCIDOL
Last updated on 31 Mar 2026 | 09:30 AM (IST)
CALCIUM,ALFACALCIDOL
Background and Date of approval CALCIUM,ALFACALCIDOL
Calcium and Alfacalcidol was approved by US Food and drug administration for the indication to treat vitamin D deficiency, renal osteodystrophy, hyperparathyroidism, hypoparathyroidism, hypocalcemia, rickets, or osteomalacia which belongs to the group of medicines called dietary supplements.
Uses of CALCIUM,ALFACALCIDOL
Calcium and alfacalcidol is used to treat Calcium and vitamin D deficiency, Renal osteodystrophy, Hyper and hypoparathyroidism and Rickets and Osteomalacia.
How is CALCIUM,ALFACALCIDOL administered?
Calcium and alfacalcidol is available in oral tablet dosage form at a dose of 500mg. Your physician will decide the correct dosage and duration based on age, body weight, and disease condition.
Side Effects of CALCIUM,ALFACALCIDOL
Side effects are unwanted symptoms caused by medicines. Even though all drugs cause side effects, not everyone gets them. Common side effects may include stomach pain, skin rash diarrhea , constipation and itching. Keep an eye out for these signs and contact your doctor immediately if you experience any of them while receiving therapy.
Warnings
It is not recommended to take this medication if you are allergic to the active substance Calcium and alfacalcidol and its components. Do not take more than prescribed since overdose may cause hypercalcemia.Before taking supplements, people who are pregnant or nursing should speak with their doctor because it is not fully proven if high-dose calcium and alfacalcidol are safe to take during these times.Recognize the signs of vitamin D intoxication, which can include dizziness, nausea, and vomiting. Immediately get medical help if you encounter these symptoms. Tell your physician about all the medications you have been taking recently before starting treatment.
Precautions
Before taking Calcium and alfacalcidol, you must notify your doctor about any medical conditions and other conditions including pregnancy and breastfeeding. It is not recommended to consume alcohol as it may reduce the absorption of this supplement. Avoid handling machines or driving, if this tablet causes dizziness and unusual tiredness. It is really important to be safe, so make sure you discuss any concerns you may have with your healthcare professional.
Word of Advice
Avoid intake of caffeine and soft drinks because this may decrease calcium absorption. If you forgot to take the tablet, simply take your next dose at the scheduled time. Do not take a double dose to make up for a forgotten dose. The best sources of calcium are dairy products like milk, yoghurt, cheese and green leafy vegetables like cabbage, broccoli, and spinach. Your doctor may advise you to take certain blood tests during the treatment to monitor any unwanted side effects. Ensure adequate sun exposure as sunlight is the natural source of vitamin D. Maintain adequate hydration as it reduces the risk of constipation.
Frequently Asked Questions
Q1.
How does calcium + alfacalcidol improve health?
Calcium + alfacalcidol includes vitamin D and calcium, which assist in strengthening bones and increase bone quality. Calcium is also essential for proper muscle, neurological system, and cardiac function. As a result, taking this medication is beneficial to overall general health.
Q2.
Can a patient with kidney problems take calcium + alfacalcidol?
Calcium + alfacalcidol should be cautiously taken if you have any kidney stones or other kidney diseases. Inform your doctor if you have any kidney disorders.
Q3.
Should calcium + alfacalcidol be taken with or without food?
Calcium + alfacalcidol comes as a tablet to take by mouth. It is usually taken at the same time every day, with or without food. Take the tablets as prescribed by your doctor.
Q4.
Does calcium + alfacalcidol cause kidney stones?
Calcium + alfacalcidol can cause kidney stones due to the accumulation of high levels of calcium when used for a longer time. Therefore, inform your physician if you have kidney stones or any other kidney problems before initiating the treatment.
Q5.
What are the potential side effects of calcium + alfacalcidol?
The most common side effects of calcium + alfacalcidol are stomach pain, diarrhea, constipation, skin rash, and itching.
References
1. KD Tripathi. Drugs affecting calcium balance. Essentials of medical pharmacology. 8th edition. 2019. Page – 361, 362, 368.
2. Thawee Songpatanasilp, La-Or Chailurkit, Akekachai Nichachotsalid, Manoj Chantarasorn. Combination of alfacalcidol with calcium can improve quadriceps muscle strength in elderly ambulatory Thai women who have hypovitaminosis D: a randomised controlled trial. Journal of the Medical Association of Thailand. [Revised in September 2009] [Accessed on June 2023] https://pubmed.ncbi.nlm.nih.gov/19894330/
3. LEO Pharma. Electronic Medicines Compendium (EMC). [Revised in February 2022] [Accessed on June 2023] https://www.medicines.org.uk/emc/files/pil.12653.pdf
4. Biokirch GmbH. Electronic Medicines Compendium (EMC). [Revised in August 2016] [Accessed on June 2023] https://www.medicines.org.uk/emc/files/pil.1295.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.






