This is a combination of calcium, vitamin D3, and vitamin B12, used together to support bone health and address related nutritional deficiencies. It is generally available as a prescription or pharmacist-recommended supplement.

• Therapeutic Class: Bone health and vitamin supplement combination.

• Pharmacological Class: Calcium salt plus vitamin D3 plus vitamin B12.

• Drug Family: Combination calcium/vitamin D/B12 therapies.

• ATC Classification: Not applicable as a single combined code.

Approved/established use: Calcium, vitamin D, and vitamin B12 deficiency, and general bone-health support.

Commonly used for: Older adults, postmenopausal women, and individuals with limited dietary intake needing broad nutritional support for both bone and nerve/blood health.

Off-label use (only under medical guidance): Sometimes used more broadly for general wellness support.

• Oral tablets/capsules: calcium commonly 500-600 mg (elemental), vitamin D3 400-1000 IU, and vitamin B12 (as methylcobalamin or cyanocobalamin) 5-1500 mcg per serving — exact amounts vary by brand.

Calcium provides the mineral needed for bone formation and other calcium-dependent body functions. Vitamin D3 supports calcium absorption from the gut. Vitamin B12 supports red blood cell production and nerve health, addressing a separate but commonly co-occurring nutritional need, particularly in older adults.

• Typical dose: One or two tablets/capsules daily, following the specific product's label.

• Route: Oral, generally taken with a meal to improve calcium absorption and reduce stomach upset.

• Missed dose: Take as soon as remembered unless close to the next dose; don't double up.

• Overdose: Excessive calcium and vitamin D intake can cause hypercalcemia; seek medical advice if excessive amounts are taken.

• Common: Constipation, mild stomach upset.

• Serious: Hypercalcemia with excessive or prolonged use.

• Emergency symptoms: Persistent vomiting, confusion, or significantly reduced urine output.

• Recovery advice: Mild digestive symptoms often settle by taking the supplement with food.

• Pregnancy: Commonly used at standard doses in pregnancy under medical guidance.

• Breastfeeding: Generally considered compatible at standard doses.

• Liver disease: Used with routine monitoring.

• Kidney disease: Used with caution, particularly regarding calcium handling in significant kidney impairment.

• Elderly: Commonly used in this age group, given higher prevalence of these deficiencies.

• Children: Used under medical guidance with appropriate dosing.

• Certain antibiotics (e.g., tetracyclines, fluoroquinolones): calcium can reduce their absorption; doses should be separated by several hours.

• Thyroid hormone replacement: calcium can reduce absorption; doses should be separated.

• Thiazide diuretics: can increase hypercalcemia risk when combined with calcium/vitamin D.

• Serum calcium and vitamin D levels periodically.

• Vitamin B12 levels if being used to correct a specific deficiency.

• Kidney function tests periodically.

Standalone calcium, vitamin D3, or vitamin B12 supplements, allowing individual dose adjustment.

This is itself a fixed combination; sometimes used alongside prescribed osteoporosis medicines as background nutritional support.

• Bone Health / Osteoporosis Supportive Care

• Vitamin B12 Deficiency Treatments

• Calcium & Vitamin D Supplements

1. How Calcium and Vitamin D Work Together for Lifelong Strength

2. Signs of Vitamin D Deficiency

3. Foods that are High in Vitamin D

4. Osteoporosis management guidelines

5. Epidemiology Of Osteoporosis Treatment In Women

6. Osteoporosis signs and symptoms

7. Osteoporosis treatment medication

1. https://ods.od.nih.gov/factsheets/Calcium-HealthProfessional/

2. https://ods.od.nih.gov/factsheets/VitaminB12-HealthProfessional/

The information on this page is for educational purposes only and is not a substitute for medical advice. Please consult your doctor to know if this treatment is appropriate for your condition.