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Calcigran Sine

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Calcigran Sine

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Medically reviewed

Marina Burgos

Last updated on 10/01/2026

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.

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Overview of Calcigran Sine

Quick Facts

Property Description
Active ingredient Calcium Carbonate
Form Chewable tablets (often flavored)
Pharmacological class Mineral Supplement / Antacid
Common use Nutritional supplementation of calcium
Origin Inorganic salt

Defining Calcigran Sine: A Mineral Supplement and Calcium Preparation

Calcigran Sine is classified as a mineral supplement that provides a highly available source of elemental calcium, primarily for nutritional supplementation. The product is recognized for being available over-the-counter (OTC) to address needs related to a deficiency of this essential mineral. Pharmacologically, Calcium Carbonate is classified within the category of calcium salts and is additionally used as an antacid. This dual classification indicates the substance's capacity to support systemic mineral needs while also offering general relief from mild stomach acidity.


Composition and Physical Form: Calcium Carbonate and Chewable Tablets

The primary active entity is Calcium Carbonate, an inorganic salt formulated as chewable tablets for oral administration. The Calcium Carbonate compound is distinctively utilized for its high concentration of elemental calcium compared to other common calcium salts, which means fewer tablets may be required to deliver the desired amount. The preparation's dosage form as a chewable tablet is a differentiating factor, offering a convenient alternative for patients who may have difficulty swallowing traditional capsules or film-coated tablets.


Primary Function: Supporting Essential Calcium Homeostasis

The fundamental purpose of this preparation is to replenish and maintain the body’s essential mineral stores to support both structural and systemic integrity. Once absorbed, the elemental calcium is utilized to sustain skeletal integrity, a process critically important throughout life. Supplying sufficient calcium is also vital for numerous biological actions beyond bone health, as it is a key component required for the proper functioning of excitable tissues, including nerve signaling and muscle contraction.

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What side effects are possible with Calcigran Sine?

Possible Side Effects and Safety Information

The safety profile of Calcium Carbonate (the active ingredient in Calcigran Sine) is primarily structured around its effects on mineral balance and the gastrointestinal system, as documented in official regulatory labeling. Adverse reactions are formally classified by frequency and system-organ class.


Adverse Reaction Classification

System-Organ Class Frequency Classification Officially Listed Reactions
Metabolism and Nutrition Disorders Uncommon Hypercalcaemia (excess blood calcium), Hypercalciuria (excess urine calcium)
Very Rare Milk-Alkali Syndrome
Gastrointestinal Disorders Rare / Not Known Constipation, flatulence, nausea, vomiting, abdominal pain
Immune System Disorders Very Rare Hypersensitivity reactions (e.g., pruritus, rash, urticaria)

Serious and Contextual Safety Notes

The most serious, though very rare, adverse reaction documented in regulatory sources is the Milk-Alkali Syndrome, a condition involving hypercalcaemia, alkalosis, and potential renal impairment. Other serious potential effects include Nephrolithiasis (kidney stones) and vascular calcification, often associated with high doses and long-term use.

Safety labeling includes specific restrictions for certain populations. The product is generally contraindicated in patients with severe renal impairment and those with pre-existing conditions causing high calcium levels in the blood or urine. Caution is required, and regular monitoring of calcium and kidney function is mandated in patients with mild-to-moderate renal impairment.

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Overdose and Emergency Response

Overdose and When to Seek Help

Overdose with calcium carbonate (Calcigran Sine) is formally documented in regulatory labeling as resulting in hypercalcemia (excess calcium in the blood) and hypercalciuria (excess calcium in the urine). The primary cause of clinical manifestations is this elevated serum calcium level.

Documented Manifestations and Severe Outcomes

Manifestations described in official sources include gastrointestinal disturbances such as nausea, vomiting, constipation, and abdominal pain. Systemic signs listed are fatigue, muscle weakness, polydipsia (thirst), and polyuria (frequent urination). In more severe cases, hypercalcemia may lead to central nervous system effects such as confusion or stupor.

Regulators document that severe outcomes can include cardiac arrhythmias (irregular heartbeat) and irreversible renal damage, such as nephrocalcinosis (calcium deposition in the kidney). The condition Milk-Alkali Syndrome is also listed as a potential complication of prolonged, high-dose exposure.

Official Emergency Actions Required

Immediate medical attention is required if an overdose is suspected or if the product is taken in excess of the recommended amount. The mandated action is to seek medical help right away or contact a Poison Control Center.

Treatment is officially characterized as symptomatic and supportive. This includes the immediate discontinuation of the calcium preparation and the use of supportive measures such as rehydration (fluid intake). Monitoring of serum electrolytes, renal function, and ECG (heart rhythm) is required for severe hypercalcemia cases. Patients with impaired renal function are specifically noted in regulatory documents as having an increased risk for severe overdose complications.

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Therapeutic Uses of Calcigran Sine

What Calcigran Sine Treats: Main Uses and Benefits

This preparation is used across several therapeutic domains, primarily addressing conditions characterized by chronic mineral deficiency (hypocalcemia) and the resulting risks to bone health. It is applied in contexts where additional calcium support is needed to maintain skeletal integrity. The preparation is commonly used to help with symptoms related to systemic imbalance (mineral deficiency), may assist in easing symptoms related to inflammatory or irritative states (acid indigestion), and is relevant for easing symptoms related to systemic imbalance associated with chronic kidney disease.

This long-term support may assist in mitigating risks associated with low bone density and supports general well-being during symptomatic phases during periods such as growth, pregnancy, and aging. Its secondary role is used for managing symptom clusters that may appear suddenly, like heartburn and upset stomach, providing supportive relief that contributes to improved comfort during periods of heightened symptoms.


Quick Facts

Quick Fact: Symptom Domains Targeted
The product is commonly used to help with symptoms related to systemic imbalance (deficiency and phosphate control) and symptoms related to irritative states (gastric hyperacidity).

Regulatory References

  1. NIH MedlinePlus Drug Information
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Eligibility and Restrictions for Use

Who Can and Cannot Use Calcigran Sine?

Eligibility for Calcigran Sine (Calcium Carbonate) is strictly defined by regulatory documents, focusing on existing physiological conditions and age restrictions.


Contraindications

This medicine is contraindicated (must not be used) for patients with:

  • Pre-existing Hypercalcemia (abnormally high blood calcium levels).
  • Severe Renal Insufficiency (significantly impaired kidney function).
  • Nephrolithiasis (kidney stones) or conditions causing excessive calcium excretion in urine.
  • Known Hypersensitivity to Calcium Carbonate or any excipients.

Restricted and Conditional Use

Population Official Regulatory Status
Renal Impairment Use with caution in mild to moderate impairment; mandatory monitoring of calcium and renal function required.
Pregnancy/Lactation Conditional use at recommended doses; requires professional consultation and strict adherence to maximum intake limits.
Age (Antacid Use) Restricted for general antacid use to those 12 years of age and older.

The medicine is generally approved for adults, adolescents, and children for the prevention and treatment of calcium deficiency.

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What should I know about interactions with other medicines?

Calcigran Sine (calcium carbonate and cholecalciferol) is known to interact with numerous medications, primarily by forming non-absorbable complexes (chelation) in the gut, which reduces the absorption and effectiveness of the co-administered drug. These interactions necessitate strict timing separation between doses.

Absorption-Related Interactions (Timing Separation Required)

Calcium significantly reduces the absorption of tetracycline and quinolone antibiotics (e.g., doxycycline, ciprofloxacin), bisphosphonates, sodium fluoride, and levothyroxine. To minimize this effect, these medicines must be administered at specified intervals away from Calcigran Sine. For example, tetracyclines should be taken at least two hours before or four to six hours after, and quinolones typically two hours before or six hours after the calcium supplement. Oral preparations containing iron, zinc, or strontium should also be taken separately by an appropriate interval determined by a physician.

Pharmacodynamic and Metabolism Interactions

Concomitant use with thiazide diuretics increases the risk of hypercalcaemia by reducing the excretion of calcium, requiring regular monitoring of serum calcium levels. Cardiac glycosides (e.g., digoxin) require the same close monitoring, as hypercalcaemia sensitizes the heart muscle, increasing the risk of arrhythmias. The effects of the Vitamin D component may be reduced by drugs that increase its metabolism, such as phenytoin or barbiturates. Conversely, systemic corticosteroids decrease calcium absorption, potentially requiring an adjustment to the Calcigran Sine dose.

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Mechanism of Action

Modulation of Specific Cellular Calcium Channels

This domain involves the action of Calcigran Sine at the molecular level by engaging mechanisms that modulate dysregulated processes. It acts within domains involving receptor- or enzyme-mediated signaling by affecting systems where specific transmitters or mediators dominate. Specifically, Calcigran Sine modulates the activity of voltage-gated or ligand-gated calcium channels on the cell surface. Modifying these early molecular steps shapes systemic physiological outcomes, leading to predictable physiological adjustments that result in reduced activation frequency of target cells.

Influence on Intracellular Calcium Homeostasis

This mechanistic domain focuses on the downstream biological systems and processes influenced by the drug. Following the initial channel modulation, Calcigran Sine modifies processes governed by distinct signaling patterns by altering the intracellular flux and storage of Ca^2+ ions. This directly affects signaling sequences that lead to downstream effects, such as the release of cellular mediators or the activation of key signaling enzymes. The resulting physiological consequence is a shift in state within targeted pathways, which reduces the intensity of mediator release or signaling.

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Dosage and Administration Information

How to Use Calcigran Sine: Administration Guidelines

This section details the authorized route, dosing, and administration instructions for Calcigran Sine (a Calcium Carbonate preparation).


Administration Method and Form

Calcigran Sine is authorized for oral administration as a chewable tablet. To ensure proper drug release and ingestion, instructions specify that the tablets are to be chewed or sucked thoroughly before swallowing.


Standard Dosing Regimens

Dosing regimens are determined by the intended use, based on elemental calcium content (500 mg per tablet):

Primary Use Typical Daily Range (Elemental Calcium) Frequency and Timing Constraint
Calcium Supplementation 500 mg to 1500 mg (1 to 3 tablets) Usually once daily; divided doses recommended for amounts over 600 mg.
Phosphate Binding (e.g., Kidney Disease) 2000 mg to 8000 mg (2g to 8g) Divided into 2 to 4 doses; must be taken with meals.

Administration Conditions and Duration

To maximize effectiveness, especially for phosphate binding, the dose is taken with meals. When used for mild, self-managed gastric symptoms (antacid use), the administration is typically as needed, and guidance specifies a maximum duration of up to two weeks unless otherwise directed. For chronic mineral deficiency, the usage pattern is generally described as long-term supportive treatment.

Population-Specific Use

For pediatric use (children 2–17 years) for deficiency, the standard regimen is 1 to 2 tablets daily. Use is generally avoided or requires close monitoring in patients with severe renal impairment.

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Recent Clinical Evidence

Research on the active component of Calcigran Sine (Calcium Carbonate) is based on official clinical trials and scientific assessments. This overview summarizes the structure of that evidence, detailing what has been studied and what remains uncertain.


Evidence for Calcium Deficiency and Bone Health

Research examined the compound’s application in contexts of systemic mineral deficiency and skeletal integrity, primarily through Randomized Controlled Trials (RCTs). Researchers monitored outcomes related to skeletal integrity measures, such as Bone Mineral Density (BMD), and shifts in biochemical markers. Studies monitored patterns where measured changes in BMD was observed in some studies during the study period. Certainty remains low for some aspects of its long-term use; long-term effects are not fully established, and findings may not continue progressively after the initial period.


Evidence for Symptomatic Gastric Acid Neutralization

The evidence for this preparation was evaluated in short-term comparative studies and in vitro tests focused on outcomes related to physical discomfort. Researchers examined its potential to chemically neutralize acid, which researchers measured as Acid Neutralization Capacity (ANC). The findings describe patterns observed in the studies that are consistent with the known chemical function. However, follow-up durations were limited to a few hours, and comparative evidence is lacking for managing underlying, complex conditions.


Evidence for Mineral Balance in Chronic Kidney Disease

The preparation was studied for its application in outcomes related to systemic or functional imbalance in patients with Chronic Kidney Disease (CKD). Research examined whether the preparation was associated with maintaining target serum phosphate and calcium levels when compared to other compounds studied for mineral balance. This comparison found that use was associated with measured increases in serum calcium levels in some studies. Overall, the evidence quality varies across studies, and data for certain groups remain insufficient.


Long-Term Studies and Follow-up

Research has explored outcomes over defined time intervals, but there is limited information for long-term outcomes beyond the initial observation periods for durability of changes.

Evidence in Specific Population Groups

Postmenopausal women, children and adolescents, and adult patients with Chronic Kidney Disease (CKD) are the key patient groups evaluated in the research record. The results apply only to the populations studied.

What is Still Uncertain About the Research

The evidence base still contains several key knowledge gaps. Comparative evidence is lacking in some areas, and long-term effects are not fully established regarding skeletal health beyond a couple of years. Certainty remains low for complex patient profiles.

Key Studies & References MedlinePlus Drug Information: Calcium Carbonate (Oral)

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Frequently Asked Questions (FAQ)

Common questions about Calcigran Sine (FAQ)


Q: Can Calcigran Sine be taken at the same time as thyroid medication?

A: Regulatory documents state that calcium products, like Calcigran Sine, can reduce the absorption of certain medicines, including thyroid hormone replacement medications such as levothyroxine.

Official guidance describes a separation of at least four hours before or after these medicines to minimize the interaction.


Q: Is Calcigran Sine available without a prescription?

A: Calcigran Sine is primarily classified as a mineral supplement that provides a source of elemental calcium.

When used for nutritional supplementation or as an antacid, the product is recognized in regulatory documents as being available without a prescription (over-the-counter or OTC).


Q: Is Calcigran Sine the same as other calcium supplements I see in the store?

A: No, calcium supplements can vary significantly by their chemical form and preparation.

Calcigran Sine contains the Calcium Carbonate salt, which is noted for its high elemental calcium concentration, and is formatted as a chewable tablet. Other products may utilize different calcium salts (such as calcium citrate) or different dosage forms.


Q: How quickly can a person expect to notice any effects from Calcigran Sine?

A: The expected time frame for noticing effects depends on the reason for use.

For use in neutralizing stomach acid, the chemical action is described as rapid based on short-term studies. For mineral supplementation, the intended benefits are related to long-term systemic maintenance of the body’s essential mineral stores.


Q: Can Calcigran Sine cause changes in appetite?

A: Official labeling does not specifically list a change in appetite as a documented side effect.

However, regulatory documents do report gastrointestinal effects such as nausea, abdominal pain, and flatulence, which are listed as potential effects.


Q: Are there any reported interactions between Calcigran Sine and common foods like milk or spinach?

A: Official documents on calcium absorption mention that certain foods can affect how well the mineral is absorbed.

Foods that contain high amounts of oxalic acid (found in spinach) or phytic acid (found in whole grains) may reduce calcium absorption. Official guidance indicates that spacing the dose from these foods is sometimes considered to manage this potential effect.


Q: Is Calcigran Sine known to affect blood pressure readings?

A: Regulatory documents note that specific monitoring is mandated when Calcigran Sine is used alongside certain prescription medications, such as thiazide diuretics or cardiac glycosides.

This is due to the potential for changes in calcium levels (hypercalcaemia) which can affect heart function.


Q: Are there different strengths or formulations of Calcigran Sine?

A: Official product information primarily describes Calcigran Sine as a chewable tablet.

Each tablet is standardized to contain 500 mg of elemental calcium in the form of Calcium Carbonate.


Q: Does Calcigran Sine contain gluten or lactose?

A: The complete list of inactive ingredients, known as excipients, is detailed in the full regulatory product documentation, such as the SmPC or FDA label, for each specific formulation.

This documentation provides the necessary information regarding components like gluten or lactose.


Q: Why might a doctor switch a patient from another product to Calcigran Sine?

A: The choice between different calcium preparations is based on a product’s specific characteristics.

Key features of this product include the high elemental calcium concentration of the Calcium Carbonate salt and its specific formulation as a chewable tablet for oral administration.


Q: Is there a maximum amount of time someone is generally advised to take Calcigran Sine?

A: The recommended duration of use is contingent upon the medical indication.

For use as a mild, self-managed antacid, official guidance specifies a maximum duration of up to two weeks. For chronic mineral deficiency, the usage pattern is generally described as long-term supportive treatment.


Q: Can Calcigran Sine cause skin reactions or itching?

A: Yes, official safety documents list hypersensitivity reactions as a potential effect.

These reactions, which can include rash, hives (urticaria), and itching (pruritus), are reported as very rare in the product's regulatory safety documentation.


Q: Is Calcigran Sine generally taken with or without food?

A: The official administration conditions vary based on the reason for use.

When the product is used for phosphate binding (often in kidney disease), it must be taken with meals. For other uses, regulatory information suggests taking the product with food may support the absorption of the calcium.


Q: Does the time of day a person takes Calcigran Sine matter?

A: The regulatory information does not specify a mandatory clock time for administration.

Official instructions emphasize timing the medicine with meals for certain uses and ensuring a separation of several hours from other interacting medications.


Q: Is it normal to feel thirsty while taking Calcigran Sine?

A: Thirst is not listed as a common side effect in the official safety profile.

However, increased thirst is a known symptom associated with hypercalcaemia (excess blood calcium), which is listed as an uncommon side effect in regulatory documents.


Q: How is the safety of Calcigran Sine monitored after it is made available to the public?

A: Following regulatory approval, the safety of the product continues to be monitored through regulatory pharmacovigilance systems.

These systems collect reports of suspected side effects submitted by both healthcare providers and patients to the respective national drug authorities.


Q: Can Calcigran Sine interact with herbal supplements?

A: The official label provides detailed information on interactions with prescription medicines and specific minerals.

Patients can consult the 'Interactions' section and are advised to inform their doctor or pharmacist about all products they are taking, including any herbal supplements.


Q: What is the stability or shelf life of Calcigran Sine once opened?

A: Official instructions specify conditions to maintain the product’s quality, requiring it to be stored below 30°C and the container kept tightly closed.

The full regulatory label contains specific guidance on the expiration or 'in-use' date, which defines product stability.


Q: What evidence exists regarding the absorption of Calcigran Sine in the body?

A: The elemental calcium in the product is absorbed in the intestine via two main processes: active transport and passive diffusion.

Official health resources indicate that the efficiency of calcium absorption is known to be aided by the presence of Vitamin D.


Q: Are there any dietary restrictions mentioned in the official information for Calcigran Sine?

A: Official information emphasizes administration conditions, such as taking the product with meals for specific uses.

Additionally, certain foods high in oxalic or phytic acid are noted to potentially affect the absorption of calcium.


Q: Why is Calcigran Sine sometimes taken alongside other medications?

A: Calcigran Sine is primarily used as a supportive treatment to provide nutritional supplementation of calcium.

It is often used as part of a combination regimen when a patient has an underlying condition that causes or contributes to systemic mineral deficiency.


Q: Is it common for people to experience mild stomach upset when starting Calcigran Sine?

A: Gastrointestinal disorders such as constipation, flatulence, nausea, vomiting, and abdominal pain are listed as potential effects in the regulatory safety documents.

These are described in the 'Possible Side Effects and Safety Information' section with their official frequency classification.


Q: Can Calcigran Sine be crushed or mixed with food?

A: Official instructions for the chewable tablet formulation require it to be chewed or sucked thoroughly before swallowing.

Since it is intended to be chewed, crushing is not specified in the administration instructions.


Q: What is the role of Calcigran Sine in supporting bone health?

A: The fundamental purpose of the preparation is to help replenish and maintain the body's mineral stores, which is vital for sustaining skeletal integrity.

Research evidence has examined its application in the context of bone health by monitoring outcomes like Bone Mineral Density (BMD).


Q: Does Calcigran Sine require any special monitoring by a doctor?

A: Regulatory documents specify that regular monitoring is mandated for certain patient groups.

Specifically, calcium and kidney function monitoring is mandated for patients with mild-to-moderate renal impairment and those taking certain medicines like thiazide diuretics or cardiac glycosides.

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How should Calcigran Sine be stored and disposed of?

Official Storage and Disposal Requirements

The storage and disposal instructions for Calcigran Sine (Calcium Carbonate chewable tablets) are strictly defined by regulatory labeling to maintain product stability and ensure public safety.

Storage and Disposal Requirement Official Instruction
Temperature and Environment Store below 30°C. Keep the container tightly closed in order to protect from moisture and heat.
Packaging Rules The medicine must be kept in the original container/package.
Child Safety KEEP OUT OF THE SIGHT AND REACH OF CHILDREN and pets.
Disposal Do not throw away expired or unused medicines via wastewater or household waste. Ask a pharmacist for proper disposal methods to help protect the environment.

These instructions define mandatory environmental control, container integrity, and pharmaceutical waste protocols, preventing deterioration and limiting the product's environmental impact.

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

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