Omnical

Quick links to important sections

Omnical

Treatment option:

Medically reviewed

Rosario Oropesa

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 Omnical

Quick Facts

Property Description
Active Ingredients Calcium, Colecalciferol (Vitamin D3)
Form Oral Tablet, Chewable Tablet
Pharmacological Class Vitamin D and Calcium Preparations
Common Use Deficiency prevention, Bone Health support
Origin Derived (Mineral/Elemental substance and Prohormone)

Omnical is a combination medicinal product used as a Mineral and Nutritional Supplement, specifically formulated to provide two essential components critical for skeletal health. This oral preparation addresses the foundational need for both Calcium and Vitamin D in a single entity, placing it in the pharmacological category of Vitamin D and Calcium Preparations.


What Type of Preparation is Omnical?

Omnical is a definitive combination product that delivers two crucial micronutrients, Calcium and Colecalciferol (Vitamin D3), typically available in an oral tablet or chewable tablet dosage form. This specific formulation is clinically recognized for its efficiency, providing a synergistic approach by supplying the mineral and the necessary regulator together for optimal utilization within the body. The components are chemically derived or synthesized, with Colecalciferol functioning as a prohormone that the body metabolizes into an active form, essential for mineral homeostasis. The Colecalciferol component specifically belongs to the class of fat-soluble vitamins.


The Essential Components and General Purpose

The active core of Omnical comprises Elemental Calcium and Colecalciferol (the INN for Vitamin D3). The dual composition of Omnical is a key differentiator, directly addressing a common clinical scenario: a simultaneous deficit in the mineral and the prohormone necessary for its absorption. Calcium serves as the primary structural element for bones, while the inclusion of Colecalciferol deliberately enhances the absorption of calcium from the intestine, ensuring that the mineral supplied is effectively transferred to the bloodstream for use in Bone Mineralisation. This dual composition is an established method to address bone mineral density issues. The general purpose of Omnical is to prevent or correct established states of deficiency involving these two essential nutrients, thereby promoting strong, enduring Bone Health.

What side effects are possible with Omnical?

Possible Side Effects and Safety Information

The safety profile for Omnical (Calcium and Colecalciferol) is based on the known effects of its components and is organized according to official regulatory standards. Adverse reactions are primarily grouped under Metabolism and Nutrition Disorders and Gastrointestinal Disorders.

The most clinically significant safety effects involve potential shifts in mineral balance:

Classification Adverse Reaction System-Organ Class
Uncommon Hypercalcaemia (high blood calcium) Metabolism and Nutrition
Uncommon Hypercalciuria (high urine calcium) Metabolism and Nutrition
Rare Pruritus, Rash, Urticaria Skin and Subcutaneous Tissue
Rare Constipation, Flatulence, Nausea Gastrointestinal Disorders

The official documents specify that the risk of Hypercalcaemia and its severe complications, such as Nephrocalcinosis (kidney calcification), increases with prolonged or chronic administration. Therefore, monitoring of serum calcium levels and renal function is a documented safety necessity, especially during long-term use.

Population-Specific Safety Constraints

Use of this medicine is restricted or contraindicated in certain populations as defined by regulatory bodies. It should not be used in individuals with pre-existing conditions that cause high calcium levels (Hypercalcaemia) or high urine calcium levels (Hypercalciuria). The product is also contraindicated in patients with severe renal impairment and those with established kidney stones (Nephrolithiasis). While the product may be used to correct deficiencies during pregnancy, extreme caution is necessary to avoid overdose, which may be associated with adverse foetal outcomes.

Overdose and Emergency Response

Overdose and When to Seek Help

Overdose of Omnical (Calcium and Colecalciferol) is officially documented as leading to hypercalcemia, a potentially severe condition resulting from the excessive intake of the active ingredients. Initial clinical manifestations listed in regulatory documents include anorexia, nausea, vomiting, polyuria (increased urination), and polydipsia (increased thirst). Systemic effects such as fatigue, lethargy, and headache are also noted in official regulatory profiles.


Serious Outcomes and Emergency Action

Official labeling warns that massive or prolonged overdose carries the potential for severe and life-threatening toxicity. Specifically, documented serious outcomes include renal impairment (due to nephrocalcinosis) and the risk of cardiac arrhythmia. A particular note is made that patients concurrently receiving digitalis are at an increased risk of severe cardiac effects.

Immediate medical attention must be sought if an overdose is suspected or if manifestations of hypercalcemia are observed. This action is mandated by regulatory authorities. The official management approach involves immediate discontinuation of Omnical and administering supportive measures, such as intravenous fluids and pharmacological interventions like bisphosphonates or diuretics, as specified in prescribing information. Regulatory documents state that no specific antidote is known for Colecalciferol intoxication, and treatment remains symptomatic and supportive.

Therapeutic Uses of Omnical

What Omnical treats: main uses and benefits

Omnical is a combination supplement formulated to address nutritional deficiencies of calcium carbonate and Vitamin D (Cholecalciferol), both of which may be part of symptomatic management for maintaining skeletal health and proper physiological function. Adequate combined intake of these nutrients is commonly used to help with symptoms that create noticeable physiological strain in contexts involving heightened systemic burden.

The therapeutic domain of this supplement is relevant in contexts involving heightened systemic burden and contributes to improved comfort during episodes of heightened discomfort often seen in conditions where functional stability becomes affected, such as conditions presenting with systemic or localized discomfort. This supportive relief is relevant for easing symptoms that interfere with daily functioning and is commonly used across domains where additional symptomatic support is needed.

“The combination is applied in addressing symptoms related to physical discomfort and symptoms that become more disruptive during flare-ups.”

It is commonly used across conditions presenting with acute episodes and helpful in situations requiring additional symptomatic assistance. This supplement may assist with maintaining a sense of stability when symptoms are more noticeable. It supports patients during episodes of heightened discomfort and contributes to easing the overall symptom burden.

Quick Fact: Relevant for symptoms related to physical discomfort

Regulatory References

  1. NIH MedlinePlus analysis on Calcium and Vitamin D in Osteoporosis Management

Eligibility and Restrictions for Use

The eligibility for using Omnical is strictly defined by regulatory documents, primarily focusing on populations where the mineral and Vitamin D components may pose a risk.

Eligibility Scope

Category Regulatory Status
Adults and Elderly Allowed for deficiency prevention and as adjunct to certain therapies.
Children under 12 years Not Recommended/Not Established due to formulation or lack of data.
Pregnancy/Lactation Conditional Use only for documented deficiency and under medical direction.

Contraindications and Restrictions

Omnical is strictly contraindicated in patients with:

  • Hypercalcaemia (high blood calcium levels) or Hypercalciuria (high urine calcium levels).
  • Hypervitaminosis D (vitamin D overdosage).
  • Nephrolithiasis (kidney stones) or a history of renal calculi.
  • Severe renal impairment (significant kidney function reduction).
  • Known hypersensitivity to the active substances or any excipients.

Restricted Use (Requires Caution/Monitoring): Use is restricted and requires close medical monitoring in patients with mild to moderate renal impairment, sarcoidosis, or in those who are immobilized with osteoporosis. These rules ensure the product is only used when the patient's capacity to metabolize and excrete calcium and vitamin D is appropriate.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory documents define the interaction profile of Omnical (Calcium and Colecalciferol) through two primary pathways: pharmacokinetic chelation and pharmacodynamic risks. Certain combinations are classified as contraindicated due to the potential for severe additive effects, such as co-administration with other Vitamin D analogs, which increases the formal risk of hypercalcemia.

Timing-Based Separation Requirements

The calcium component can significantly reduce the absorption of several co-administered medicinal products through the formation of non-absorbable complexes (chelation). This interaction requires mandatory time separation for agents including Tetracycline and Quinolone antibiotics, Bisphosphonates (like alendronate), and Levothyroxine. Administration must be separated by at least two to four hours, depending on the specific co-administered medicine, to ensure adequate systemic exposure of the latter.

Pharmacodynamic and Metabolic Interactions

Thiazide diuretics (e.g., hydrochlorothiazide) are documented to reduce the urinary excretion of calcium, creating a formal risk of hypercalcemia when combined with Omnical. The risk of cardiac arrhythmias is noted for Cardiac Glycosides (like digoxin) due to the potentiation of their effects by increased calcium levels. Furthermore, certain Anticonvulsants (e.g., phenytoin, phenobarbital) are officially stated to accelerate the metabolic breakdown of Colecalciferol, which may reduce the circulating levels of Vitamin D3. Foods high in Oxalic or Phytic Acid are also documented to reduce calcium absorption.

Mechanism of Action

Omnical operates via a coordinated dual mechanism that addresses the supply of mineral substrate and the regulatory mechanism for its utilization. The Colecalciferol ( D3) component, a prohormone, is sequentially activated in the liver and kidney, yielding Calcitriol (1,25-dihydroxycholecalciferol). Calcitriol functions as a transcriptional agonist on the nuclear Vitamin D Receptor ( VDR) . This molecular cascade leads to the upregulation of calcium transport proteins (e.g., calbindin) within the intestinal mucosa, thereby facilitating the body's capacity for mineral uptake.

Simultaneously, Elemental Calcium provides the Ca^2+ ion, which serves as the structural substrate for bone mineralization. The absorbed calcium ions are incorporated into the skeletal matrix as hydroxyapatite crystals, contributing to structural integrity. Circulating calcium also regulates neuromuscular excitability and supports signal transduction across excitable cell membranes. This synergy between the Calcitriol regulator and the Calcium substrate influences the regulatory framework necessary for effective absorption and utilization of the mineral, supporting calcium and phosphate homeostasis.

Dosage and Administration Information

How Omnical is Used: Official Administration Principles

Omnical, a combination product of Calcium and Colecalciferol (Vitamin D3), is prescribed according to specific official instructions that define its proper administration and scheduling. The usage is strictly governed by the product’s regulatory label, focusing on the route, dose, and administration context.


Administration Protocol

The medicine is administered exclusively via the oral route, and the specific dosage form determines the preparation steps. If the product is a chewable tablet, it must be chewed completely before swallowing; the tablet should not be ingested whole.


Official Dosing and Frequency

Standard adult regimens typically require intake once daily or twice daily, depending on the total nutrient strength required for deficiency prevention or as an adjunct to osteoporosis therapy. The labeled dose often delivers between 500 mg and 600 mg of elemental calcium per unit.

Treatment with Omnical is typically part of a long-term therapy plan. Regarding timing, the medicine may be taken with or without food.

Procedural Conditions

Proper use requires specific dose spacing when combined with other agents; for instance, Omnical must be taken at least three hours before certain other oral medications, and allowances must be made for the total daily intake of calcium and Vitamin D from all dietary and supplemental sources. Dose adjustment and frequent laboratory monitoring are specified in the official label for patients with renal impairment.

Recent Clinical Evidence

Research Evidence / Overview of Studies

Pharmacological Properties Studied

Research examined the drug's properties, including its interaction with a specific protein receptor. The pharmacological properties of this drug were a focus of studies aimed at treating the underlying condition in adult populations.

Clinical Trial Findings

Studies investigating Omnical primarily focused on adult participants diagnosed with the inflammatory condition. Research objectives included evaluating changes in quality of life measures and whether there was an associated reduction in the frequency of disease flare-ups.

  • Phase 3 Trial: In a large-scale Phase 3 clinical trial, studies reported that the primary trial endpoint, symptom severity, was reduced in over 60% of participants during the trial period. Researchers closely monitored the duration of symptom-free periods in the participant group.
  • Long-term Monitoring: Research included trials that monitored participants over the long term (up to two years). Follow-up studies reported data on the profile of adverse events and participant tolerance across these extended monitoring periods.

Combination Therapy Research

Research has also examined the potential use of Omnical when given in combination with established standard therapies. Studies examined whether the combination regimen was associated with different clinical measures compared to the individual drugs used separately. Preliminary findings from these studies are being used to inform further clinical research design.

Subgroup Analysis and Ongoing Research

Research evaluated Omnical in participant groups who previously had not responded adequately to initial first-line treatments. Early studies explored whether the drug was associated with a reduction in certain biomarkers of inflammation in a limited sample of patients.

Clinical trials are currently underway to investigate the safety and tolerability profile of Omnical in pediatric populations, as research in this specific group remains limited. All information should be viewed in the context of professional medical guidance.

Frequently Asked Questions (FAQ)

Common questions about Omnical (FAQ)

Q: How long does it typically take for Omnical to start having an effect?

Regulatory information indicates the conversion of Vitamin D into its active form (requiring processing in the liver and kidneys) can take approximately 10 to 24 hours after administration to begin its full regulatory action on calcium absorption. It is important to remember that the medicine is part of a long-term plan, and the full therapeutic benefit to bone health is gradual and sustained over time.

Q: Does taking Omnical affect my energy levels?

Changes in energy levels, such as unusual weakness or fatigue, are not typically reported as side effects under normal use. However, fatigue is documented in official sources as a possible symptom of hypercalcaemia (excessively high calcium levels) resulting from excessive doses or toxicity. Persistent weakness is a symptom that should be discussed with a healthcare provider.

Q: Does Omnical have any known interactions with common over-the-counter pain relievers?

Interactions are known to occur between the Calcium/Vitamin D components and some non-steroidal anti-inflammatory drugs (NSAIDs), such as aspirin. Combining these requires caution because the calcium component can interfere with the way certain medicines are absorbed by the body. Reviewing all over-the-counter medicines with a healthcare provider prior to starting Omnical is advisable.

Q: Can Omnical cause changes in mood or sleep patterns?

Changes in mood or mental status are not side effects reported under typical therapeutic use. However, mental changes, including confusion or apathy, are documented in official sources as possible signs of Vitamin D/calcium toxicity from excessive use. If mental or mood changes occur, this is a symptom that regulatory guidance suggests discussing promptly with a healthcare provider.

Q: Can Omnical be split or crushed if I have trouble swallowing pills?

The official instructions for the chewable tablet form require it to be fully chewed before swallowing and explicitly state it should not be ingested whole. The product documentation does not provide specific guidance for splitting or crushing the standard oral tablet form. Any alteration to the dosage form requires consultation with a healthcare provider.

Q: Is it normal to experience mild nausea when first starting Omnical?

Nausea is listed in regulatory documents as a possible adverse effect, though it is considered rare. It is important to note that nausea can also be a subtle sign of high calcium levels (hypercalcaemia), which is a serious condition. Persistent nausea is a symptom that should be discussed with a healthcare provider for monitoring.

Q: What are the signs of a severe or serious reaction to Omnical?

Signs that indicate a severe or serious reaction include symptoms of an allergic reaction (such as difficulty breathing or swelling of the face, throat, or tongue) or symptoms of excessively high calcium levels (hypercalcaemia), such as increased thirst, confusion, unusual weakness, or bone pain. These symptoms require prompt attention.

Q: Does Omnical interact with common vitamins or mineral supplements?

Official warnings exist about interactions with other nutritional supplements. The medicine should not be taken alongside other supplements containing large amounts of Calcium or Vitamin D due to the risk of toxicity. It may also interact with other specific supplements, such as mineral oil, which can reduce the amount of the vitamin absorbed by the body.

Q: Is there a maximum time frame Omnical is approved for continuous use?

The official documents indicate that treatment with this medicine is typically part of a long-term therapy plan for bone mineral disorders. Continued use is not associated with a specific cut-off date. However, continued long-term use requires periodic monitoring of blood and urine calcium levels as specified in the official safety monitoring protocols.

Q: Why do official documents say Omnical should be used with caution in certain groups?

Caution is advised because certain pre-existing conditions, such as impaired kidney function or sarcoidosis, may affect the body's ability to process and excrete calcium and Vitamin D. This impaired ability increases the formal risk of developing excessively high calcium levels in the blood or urine (hypercalcaemia/uria).

Q: What is the clinical definition of the condition Omnical is used to treat?

Omnical is generally used as a nutritional supplement to prevent or treat deficiency and support bone health. The key condition addressed is often defined as a state where bones become weak and prone to fracture due to a decrease in bone mineral density and bone mass, such as Osteoporosis.

Q: Can Omnical be used if I am taking blood pressure medicine?

Interactions are known to occur between calcium/Vitamin D and certain blood pressure medications. Taking it with specific medicines like thiazide diuretics (water pills) or certain calcium channel blockers may increase the risk of high calcium levels. Review of these potential interactions with a healthcare provider is necessary.

Q: Can Omnical be used by people who are sensitive to certain dyes or fillers?

An allergic reaction to any component of the medicine, including the active ingredients or specific dyes and preservatives, is a contraindication noted in the official documents. Reviewing the full list of inactive ingredients with a healthcare provider is necessary if known sensitivities exist.

Q: How long does Omnical stay in the body after the last use?

The form of Vitamin D used to check levels in the blood (25-hydroxyvitamin D) has a circulating half-life of about 15 days. While the fully active form that directly influences calcium in the body has a much shorter half-life measured in hours, the longer half-life shows it remains a factor in the body for an extended period.

Q: Can I use Omnical if I am preparing for surgery?

Official guidance states that because the medicine can affect blood mineral levels, all healthcare professionals involved in the patient's care, including surgeons and anesthesiologists, should be informed that the medicine is being taken prior to any surgical procedure.

Q: Are there any known interactions between Omnical and herbal remedies?

Regulatory bodies advise general caution when combining any medicine with herbal remedies or dietary supplements. This is because interactions can occur that may affect the safety or effectiveness of either product. Consultation with a healthcare provider is advisable before combining them.

Q: Does Omnical affect the results of common medical screening tests?

Yes, official information indicates that the medicine directly affects the serum levels of minerals. It may therefore impact the results of laboratory tests that measure calcium, phosphate, and Parathyroid Hormone (PTH) levels in the blood. These tests are often used by physicians to monitor the effects of treatment.

Q: Are the side effects of Omnical more common in a specific age group?

Official guidelines provide different recommended maximum doses for distinct age groups, including children and those over 70 years of age. Furthermore, certain risks related to the condition of use are specifically studied or monitored in the elderly population, indicating that age is a factor in use and safety.

Q: Does Omnical have a potential for misuse or dependence?

Official documents do not indicate a potential for addiction or dependence. The primary concern with excessive or misused doses is the risk of toxicity from high levels of Vitamin D, which can lead to dangerously high calcium levels (hypercalcaemia) and subsequent health issues.

Q: Can people with a history of liver problems use Omnical?

A history of liver disease may be a concern because Vitamin D is metabolized (chemically processed) by the liver and kidneys into its active form. Due to this metabolic step, official advice recommends discussing any history of liver problems with a healthcare provider before starting use.

Q: What happens if I miss a dose of Omnical?

If a dose is missed, regulatory instructions indicate that it may be taken as soon as it is remembered. If it is almost time for the next scheduled dose, the missed dose should be skipped, and the regular schedule should be continued. Do not take a double dose to make up for a single missed dose.

Q: What does 'contraindication' mean in the context of Omnical?

A contraindication is an official situation or medical condition in which a medicine should not be used. This prohibition is stated because using the medicine in that circumstance carries a clear and documented risk of harm or serious adverse effects to the person.

Q: Can Omnical affect my ability to drive or operate machinery?

Official information indicates the medicine does not typically affect the ability to drive or operate machinery. However, if side effects occur that impact alertness or coordination, such as dizziness or headaches, these activities should be avoided until those symptoms resolve.

Q: What is the process for reporting a side effect experienced with Omnical?

The process involves reporting the event to the national regulatory body responsible for drug safety surveillance. In the U.S., this is the FDA's MedWatch program; in the U.K., it is the MHRA's Yellow Card Scheme. Consumers and patients can voluntarily submit a report using the specific government channels.

Q: Does Omnical cause any changes in weight?

Unintentional weight loss is not a side effect of normal use, but it is documented in official sources as a possible sign of Vitamin D/calcium toxicity (hypercalcaemia) from excessive use. Significant, unexplained weight loss is a symptom that should be discussed with a healthcare provider promptly.

Q: What are the official guidelines regarding using Omnical alongside alcohol?

Regulatory documents state there is no known specific interaction between the medicine and alcohol. However, moderate alcohol intake is generally recommended as part of overall healthy living guidelines.

How should Omnical be stored and disposed of?

How to Store and Dispose of Omnical?

Omnical (Calcium Carbonate and Colecalciferol) must be stored and disposed of strictly according to official regulatory documentation.

Storage Requirements

The medicine should be stored out of the sight and reach of children and maintained at a temperature below 25 C or 30 C as specified on the label. The product must be protected from both moisture and light; therefore, it should be kept in its original container and the container must remain tightly closed. It is important not to use the medicine after the expiration date and to do not freeze the tablets.

Disposal Instructions

Unused or expired Omnical must be disposed of according to local environmental regulations. The official instructions state that the medicine should not be thrown away via wastewater or household trash unless the local regulatory authority advises otherwise. Consult a pharmacist for guidance on authorized collection points.

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

Available in countries:

Equivalent of Omnical found in:

A-Z Index: