Kalcipos-D

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Medically reviewed

Laura Arias

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Kalcipos-D

Quick Facts

Property Description
Active ingredient Calcium Carbonate, Colecalciferol (Vitamin D3)
Form Film-coated tablet or Chewable tablet
Pharmacological class Antihypocalcemic Agent; Calcium combinations with Vitamin D (ATC: A12AX)
Common purpose Prevention and treatment of calcium and Vitamin D deficiencies
Origin Combination of mineral salt and synthesized vitamin precursor

What Type of Medicine is Kalcipos-D?

Kalcipos-D is classified as a fixed-dose combination product intended for oral administration, falling under the pharmacological category of a Mineral Supplement and an Antihypocalcemic Agent. The product is assigned the ATC code A12AX, which covers calcium combinations with vitamin D. In certain jurisdictions, Kalcipos-D is a product subject to medical prescription, reflecting its role in clinical deficiency management. This medicine is often supplied as a chewable tablet, a feature designed to accommodate patients, particularly the elderly, who may experience difficulty swallowing conventional pills.

Composition and Active Ingredients: Calcium Carbonate and Colecalciferol (D3)

The medicine’s composition centers on the active ingredients Calcium Carbonate and Colecalciferol (Vitamin D3). Calcium Carbonate acts as a source of elemental calcium, an essential micronutrient vital for bone structure and physiological functions. Colecalciferol is included as a Vitamin D precursor that the body converts into its active metabolite. This dual formulation is utilized because the effective intestinal absorption of calcium is dependent on the presence of adequate Vitamin D activity. This combination is designed to support the body's uptake and utilization of the mineral.

General Purpose: Supporting Essential Bone Mineralization

The primary function of Kalcipos-D is to counteract or prevent simultaneous calcium and Vitamin D deficiencies, serving as an adjunct in the management of osteoporosis where a risk of such deficiency is established. By supporting the body's ability to maintain serum calcium homeostasis, the medicine aids the process of bone mineralization promotion and overall skeletal integrity. The provision of this combination is intended for patient groups who face documented risks of these nutritional deficits.

Regulatory References

  1. FASS/MPA Product Information for Kalcipos-D

What side effects are possible with Kalcipos-D?

Possible Side Effects and Safety Information

The safety profile of Kalcipos-D (Calcium Carbonate and Colecalciferol) is based on the risks associated with supplementing calcium and Vitamin D, primarily affecting the body's mineral balance and the gastrointestinal system, as documented in official regulatory sources.


Officially Documented Adverse Reactions

Adverse reactions are classified according to frequency in regulatory documents:

Classification Representative Reactions
Common (up to 1 in 10) Hypercalciuria (excess calcium in urine), Constipation, Flatulence, Nausea, Abdominal pain, Diarrhoea
Uncommon (up to 1 in 100) Hypercalcaemia (elevated calcium in blood)
Rare (up to 1 in 1,000) Hypersensitivity reactions (Pruritus, Rash, Urticaria)

These effects are formally categorized under Metabolism and Nutrition Disorders, Gastrointestinal Disorders, and Skin and Subcutaneous Tissue Disorders.


Safety Restrictions and Considerations

The medicine is strictly contraindicated in patients with pre-existing conditions that affect calcium balance or kidney health, including Hypercalcaemia, Hypercalciuria, Nephrolithiasis (kidney stones), and Severe Renal Impairment. The core risks of Hypercalcaemia and Hypercalciuria are generally noted in the context of prolonged high-dose exposure. Caution is also specifically advised for patients with Renal Impairment and Older Adults, where careful consideration of mineral levels is necessary due to the potential for adverse outcomes.

Overdose and Emergency Response

An overdose of Kalcipos-D, an agent combining Calcium Carbonate and Colecalciferol (Vitamin D3), results in a toxic state known as Hypercalcaemia or Hypervitaminosis D. This condition is the basis for all documented manifestations and required emergency actions, as described in official regulatory documents.

Documented Overdose Presentations

Symptoms of overdose listed in official prescribing information include non-specific signs such as nausea, vomiting, excessive thirst (polydipsia), frequent urination (polyuria), loss of appetite, fatigue, muscle weakness, and mental disturbances. The regulatory profile classifies the primary risk as the escalation to severe outcomes, including irreversible renal damage, cardiac arrhythmias, and generalized vascular and organ calcification. Extreme hypercalcaemia may potentially lead to coma and can be fatal.

Immediate Actions and When to Seek Urgent Help

Urgent medical attention is required upon the recognition of any of these symptoms. The mandated emergency response involves the immediate discontinuation of all calcium and Vitamin D intake. Treatment is symptomatic and supportive, with initial intervention requiring rehydration.

Monitoring and Population Notes

Monitoring is essential, requiring frequent checks of serum calcium levels, renal function (serum creatinine), and an ECG to assess cardiovascular impact. A specific consideration exists for pregnant patients and those with renal impairment, as these populations may face increased severity or developmental risks according to official labeling.

Therapeutic Uses of Kalcipos-D

What Kalcipos-D Treats: Main Uses and Benefits

Kalcipos-D is commonly used across therapeutic domains where additional symptomatic support is relevant for addressing the simultaneous presence of a confirmed calcium and Vitamin D deficit. This combination is commonly used for the prevention and treatment of these deficiencies. This therapy is relevant for managing symptoms related to systemic imbalance by providing the necessary mineral and vitamin support relevant to supporting physiological balance.


This medicine is commonly used across conditions presenting with bone loss, and is generally applied as an adjunct in the management of osteoporosis in high-risk groups. The therapeutic context involves managing Vitamin D deficiency, addressing calcium deficiency, and providing supportive supplementation alongside specific osteoporosis treatments. This supportive relief generally helps maintain a sense of stability for patients by contributing to improved bone mineralization and may assist with supporting bone mass, which contributes to easing the risk of symptoms related to bone fragility.

“The therapeutic intent of this combination is to support the body’s mineral balance and contribute to better bone structural health.”

The support provided in correcting severe Vitamin D deficiency contributes to the improvement in musculoskeletal symptoms, which include muscle weakness (myopathy) and associated functional instability. This helps ease symptom clusters that may become disruptive, and may assist patients with maintaining functional stability.


Quick Fact: Relief for Musculoskeletal Weakness

Domain Benefit Focus Patient Group Focus
Skeletal Health Is relevant for easing the risk of symptoms related to bone fragility Postmenopausal women
Functional Support May assist patients with maintaining functional stability Older adults / Elderly

Eligibility and Restrictions for Use

Kalcipos-D is officially approved for use in adults and the elderly for the prevention and treatment of a confirmed calcium and vitamin D deficiency. Its use is strictly defined by regulatory eligibility criteria focusing on pre-existing metabolic and organ health.


Absolute Contraindications (Must Not Use)

The medicine is contraindicated and must not be used in individuals with elevated levels of calcium in the blood (Hypercalcaemia) or urine (Hypercalciuria), or those with Hypervitaminosis D. Contraindications also extend to patients with Nephrolithiasis (kidney stones), Nephrocalcinosis (calcium deposits in the kidneys), and certain severe conditions like Renal failure. Use is also prohibited for patients with a known hypersensitivity to the active ingredients or excipients.


Eligibility Limitations and Restricted Use

The product is not intended for use in the pediatric population (children and adolescents). Use requires caution and monitoring in patients with renal impairment or sarcoidosis. Pregnant and breastfeeding women are permitted to use the medicine only when correcting a documented deficiency, not for general supplementation.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Kalcipos-D (Calcium Carbonate and Colecalciferol) interacts with several product classes, primarily through documented mechanisms of absorption interference and pharmacodynamic outcomes.


Administration Timing Restrictions (Chelation)

The calcium carbonate component reduces the absorption and efficacy of certain co-administered medicinal products by forming insoluble complexes. Regulatory labels mandate specific timing separation to maintain efficacy. This restriction applies to Tetracycline and Quinolone antibiotics, Bisphosphonates, Levothyroxine (thyroid hormones), and preparations containing Iron, Zinc, or Strontium Ranelate. These agents must be taken hours apart from Kalcipos-D, as specified in official regulatory documentation.


Pharmacodynamic and Metabolic Interactions

Co-administration with Thiazide diuretics increases the risk of hypercalcaemia due to reduced renal calcium clearance. Hypercalcaemia potentiates the toxicity of cardiac glycosides (e.g., Digitalis drugs), which carries a high risk of cardiac arrhythmias. Furthermore, Phenytoin and Barbiturates can enhance the metabolic breakdown of the Vitamin D3 component, potentially reducing its overall effect. Taking other Vitamin D analogs or pharmacologic doses of Vitamin D is restricted due to the high risk of additive toxicity.


Dietary and Population Constraints

Calcium absorption is reduced by foods containing oxalic acid (e.g., spinach) or phytic acid (e.g., bran). Administration must be separated by at least two hours from consuming these foods. Special monitoring is documented for patients with compromised renal function and elderly patients who take co-medications like cardiac glycosides or diuretics.

Mechanism of Action

How Kalcipos-D Works

Kalcipos-D, containing calcium carbonate and cholecalciferol (Vitamin D3), influences calcium and phosphorus homeostasis, which are essential components of the bone matrix.

Modulation of Intestinal Calcium Absorption

This mechanism involves the active Vitamin D metabolite (calcitriol) functioning as a nuclear hormone. Calcitriol binds to the Vitamin D receptor (VDR) and modulates gene transcription within intestinal epithelial cells. This process promotes the synthesis of specific calcium transport proteins, thereby increasing the influx of dietary calcium into the systemic circulation.

Regulation of Calcium Homeostasis and Parathyroid Signaling

Exogenous calcium directly provides the mineral substrate required for hydroxyapatite formation. Concurrently, the resulting elevated serum calcium concentration acts as a negative feedback signal by modulating the calcium-sensing receptor (CaSR) in the parathyroid glands. This modulation results in the suppression of Parathyroid Hormone (PTH) secretion. Reduced circulating PTH levels consequentially decrease the differentiation and activity of osteoclasts, which are the cells responsible for bone resorption.

Dosage and Administration Information

The use of Kalcipos-D is defined by a standard oral administration protocol focused on consistent, long-term intake. The official dosing regimen is dependent on the specific product strength. For the 500 mg/400 IU strength, the common dose is typically one tablet administered twice daily, whereas the 500 mg/800 IU strength is generally taken once daily.

The method of consumption is strictly determined by the tablet form. Chewable tablets must be consumed by chewing or slowly melting them in the mouth and should never be swallowed whole. In contrast, film-coated tablets can be swallowed intact, divided, or crushed prior to intake. The medicine is preferably administered during a meal to enhance systemic absorption.

Proper administration requires adherence to several timing constraints. The intake must be separated by at least two hours from foods containing high levels of phytic or oxalic acid, such as certain whole cereals or spinach. Specific co-administered oral medications, including tetracycline-class antibiotics and levothyroxine, also require multi-hour separation from Kalcipos-D to prevent potential absorption interference. If a dose is forgotten, the instruction is not to take a double dose to compensate. The use is typically established as a long-term therapy, with duration tied to maintaining appropriate mineral balance.

Recent Clinical Evidence

Research evidence / Overview of studies for Kalcipos-D

Evidence for Correction of Vitamin D and Calcium Deficiency

Research has primarily evaluated this combination in studies of individuals with existing deficiencies in Vitamin D and calcium. Studies focus on outcomes related to systemic or functional imbalance caused by low levels of the essential mineral and vitamin. These trials are typically short-term, controlled studies where the main focus was studied for how specific physiological markers change in the observed populations.

Studies monitored blood samples to track Vitamin D status and calcium balance. Research examined measurements of key substances like serum 25-hydroxyvitamin D (25[OH]D) levels and Parathyroid Hormone (PTH) concentration. Findings describe patterns observed in the studies consistent with changes in these markers toward non-deficient ranges. It is important to note that long-term effects are not fully established solely by studies focusing on deficiency correction.

Evidence for use as an Adjunct in Osteoporosis Management

Research exploring this combination is used in research exploring how symptoms change over time related to conditions marked by functional limitations and skeletal fragility. The evidence base includes many large-scale Randomized Controlled Trials (RCTs) and systematic reviews that was evaluated in this combination therapy as a supportive measure alongside other prescription osteoporosis treatments.

Research Focus on Fracture and Bone Mineral Density Outcomes

Studies monitored the incidence of major bone breaks, such as hip fracture and other non-vertebral fractures, as key outcomes reflecting daily functioning or activity level. Research also examined patterns of change in Bone Mineral Density (BMD) measurements. Findings described patterns related to fracture incidence monitored in some trials, particularly in groups with very low baseline Vitamin D levels or those in institutionalized settings.

Research Focus on Muscle Function and Fall Risk

Studies also explored outcomes related to physical function, as outcomes related to physical discomfort can be linked to muscle weakness often seen in deficiency. Research examined its impact on measurements of muscle function and the associated risk of falls in older adults. However, evidence quality varies across studies, meaning certainty remains low regarding measured changes in fall risk across all populations.

Research Gaps and Areas of Scientific Uncertainty

A significant point of discussion is the difference in findings between trials focusing on institutionalized versus community-dwelling adults. The data show patterns related to inconsistent findings regarding fracture incidence in the general community population, leading to scientific debate on appropriate targeting. Furthermore, evidence is limited for long-term effects, and there is limited information available from studies that focused exclusively on individuals who were not deficient at the beginning of the research.

Frequently Asked Questions (FAQ)

Common questions about Kalcipos-D (FAQ)


Q: Is Kalcipos-D a common treatment for osteoporosis?

A: Official documentation describes Kalcipos-D as a calcium and Vitamin D supplement for individuals who are already receiving specific osteoporosis treatment. Its use is officially indicated as an adjunct, meaning it is used in addition to other main therapies, rather than as a standalone primary treatment for the condition.


Q: Does Kalcipos-D interact with Thiazide diuretics?

A: Official documents describe a documented interaction. Co-administration of this medicine with thiazide diuretics (a type of water pill) may increase the risk of elevated calcium levels in the blood, a condition known as hypercalcaemia.


Q: Can Kalcipos-D cause constipation or stomach issues?

A: Gastrointestinal issues are officially documented. Adverse reactions such as constipation, nausea, diarrhoea, and abdominal pain are classified as common effects in official safety documents.


Q: Is it possible to be allergic to the ingredients in Kalcipos-D?

A: The medicine is contraindicated in cases of known hypersensitivity to the active substances or any of the inactive ingredients. Furthermore, rare hypersensitivity reactions, such as rash or itching, have been reported in safety documents.


Q: Is there a risk of high levels of Vitamin D when taking Kalcipos-D?

A: Regulatory documents note this as a potential concern. The product is contraindicated if a person already has Hypervitaminosis D (excess Vitamin D). Caution is advised in its use, as prolonged therapy, especially at high doses, may lead to elevated blood levels of calcium and Vitamin D.


Q: Does Kalcipos-D contain lactose or sugar?

A: Official product information indicates that certain formulations, such as the chewable tablets, contain excipients that are types of sugar, specifically glucose and sucrose.


Q: Are there different strengths of Kalcipos-D available?

A: Regulatory documents refer to product formulations with differing Vitamin D content. These typically refer to strengths containing 500 mg of calcium combined with either 400 IU or 800 IU of Vitamin D3.


Q: What if I forget to take Kalcipos-D sometimes?

A: Official patient information states that a double dose should not be taken to make up for a single dose that was missed.


Q: Do I need to take Kalcipos-D with food?

A: Official product information indicates that administration is associated with taking the medicine during a meal. This is described as a way to enhance the systemic absorption of the active ingredients.


Q: Is it normal to feel a bit nauseous when first starting Kalcipos-D?

A: Nausea is listed as a common adverse reaction in official safety documents. This means it is an effect frequently reported during use, which may occur when initiating therapy.


Q: Are there any long-term side effects associated with Kalcipos-D?

A: Official safety information indicates that the core risks of hypercalcaemia (high blood calcium) and hypercalciuria (excess calcium in urine) are generally associated with prolonged high-dose exposure.


Q: Are there foods or beverages that might interfere with Kalcipos-D absorption?

A: Certain foods can interfere. Calcium absorption may be reduced by foods containing oxalic acid (such as spinach and rhubarb) or phytic acid (such as whole cereals). Separation of at least two hours from consuming these foods is indicated to reduce interference with absorption.


Q: What kind of research has been done on Kalcipos-D?

A: Research has focused on the medicine's effectiveness in two main areas. Studies have evaluated the combination for correcting existing deficiencies in calcium and Vitamin D, and for its use as an adjunct in the management of osteoporosis.


Q: Are there research findings about bone fracture risk reduction with Kalcipos-D?

A: Official documents note that studies have monitored the incidence of major bone breaks, such as hip and other non-vertebral fractures. Findings have described patterns related to fracture incidence monitored in some trials.


Q: Is there any evidence concerning Kalcipos-D and cardiovascular health?

A: Official documents describe a documented interaction concerning heart function. The development of hypercalcaemia (elevated blood calcium) can potentiate the toxicity of cardiac glycosides (a class of heart medicines), which carries an increased risk of cardiac arrhythmias (irregular heartbeat).

How should Kalcipos-D be stored and disposed of?

How to Store and Dispose of Kalcipos-D?

Storage and disposal of Kalcipos-D must follow official regulatory labeling to ensure product stability and safety. The medicine must be stored below 25 C and should be kept out of the sight and reach of children.


Required Storage Conditions

The product must be stored in the original package and the container must be kept tightly closed to protect from light and moisture. The medicine must not be used after the expiration date stated on the label.


Official Disposal Instructions

Do not throw away any medicines via wastewater or household waste. Unused or expired Kalcipos-D must be discarded according to local environmental and pharmaceutical waste rules. You should ask your pharmacist how to properly throw away medicines no longer needed.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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