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Dibase 25000

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Dibase 25000

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Treatment option:

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.

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Overview of Dibase 25000

Quick Facts

Property Description
Active ingredient Colecalciferol (Vitamin D3)
Form Oral solution (oil-based liquid)
Pharmacological class Vitamin D and analogues (Secosteroid prohormone)
Common use Supports mineral balance and skeletal health
Origin Derived (chemically identical to endogenous form)

What Type of Medicine is Dibase 25000?

Dibase 25000 is a high-concentration medicinal preparation containing the active component Colecalciferol, which is chemically identical to Vitamin D3. This preparation belongs to the official pharmacotherapeutic group of Vitamin D and analogues (ATC code A11CC05). Colecalciferol itself is defined as a secosteroid prohormone, a precursor molecule that the body must metabolically convert into the active hormone, Calcitriol. Colecalciferol is classified as an essential medicine, confirming its recognized therapeutic significance.

Composition and Form: Why an Oil Solution?

The product is provided as a high-strength, single-entity oral solution, distinguishing it from lower-dose tablet or capsule forms. The formulation utilizes a pharmaceutical-grade oil base, typically olive oil, for delivery. This specific presentation aligns with the characteristic of fat-soluble vitamins to have enhanced absorption when presented in a lipid medium. The oil base, therefore, represents a key design feature intended to optimize the compound's bioavailability and clinical efficacy when addressing states of deficiency.

The High-Level Purpose of Colecalciferol

The fundamental purpose of administering Colecalciferol is to support the critical physiological process of calcium and phosphorus homeostasis. The compound's function involves enhancing the intestinal absorption of these minerals from consumed food, thereby maintaining their necessary balance within the bloodstream and tissues. This action is essential for providing the mineral foundation required for the mineralization and structural integrity of the skeleton and teeth, supporting patient populations across the lifespan.

Regulatory References

  1. WHO Essential Medicines List
  2. World Health Organization (WHO)
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What side effects are possible with Dibase 25000?

Official Safety Profile of Dibase 25000 (Cholecalciferol)

The official safety profile for Cholecalciferol (Vitamin D3), the active substance in Dibase 25000, is primarily defined by the risk of overdose (hypervitaminosis D), which leads to dangerously high levels of calcium in the blood (hypercalcaemia) and urine (hypercalciuria).

Frequency-Classified Adverse Reactions

Adverse reactions are classified according to how often they are expected to occur, based on regulatory documentation:

Frequency Side Effect (System-Organ Class)
Uncommon (1 in 100 to 1 in 1,000 people) Hypercalcaemia (Metabolism and Nutrition)
Hypercalciuria (Metabolism and Nutrition)
Rare (1 in 1,000 to 1 in 10,000 people) Rash, Pruritus (itching), Urticaria (hives) (Skin and Subcutaneous)
Not Known Gastrointestinal discomfort (e.g., constipation, nausea, diarrhoea), Hypersensitivity reactions (Immune System)

Serious and Dose-Related Risks

The most serious adverse effects are a direct result of persistent, severe hypercalcaemia from overdose. These effects, as documented in regulatory sources, include the formation of renal calculi (kidney stones), nephrocalcinosis (calcium deposits in the kidneys), and resultant kidney damage or failure. These risks are dependent on the dose and duration of exposure.

Mandatory Safety Restrictions (Contraindications)

Dibase 25000 must not be used (is contraindicated) in certain situations where the safety risk is elevated. These restrictions include pre-existing conditions such as:

  • Hypercalcaemia (high blood calcium levels).
  • Hypercalciuria (high urine calcium levels).
  • Hypervitaminosis D (excessively high Vitamin D levels).
  • Severe renal impairment.
  • Kidney stones (nephrolithiasis) in the context of chronic hypercalcaemia.

Specific patient groups, such as those with sarcoidosis or severe kidney disease, require particular caution and monitoring of calcium levels during treatment.

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Overdose and Emergency Response

Dibase 25000 (Colecalciferol) overdose is formally documented by regulatory authorities as Hypervitaminosis D, a condition that leads to a dangerous buildup of calcium in the blood, known as Hypercalcemia. The manifestations and required actions are directly tied to this systemic imbalance.

Documented Overdose Manifestations
General/Gastrointestinal: Symptoms listed include fatigue, muscle weakness, headache, polyuria (frequent urination), polydipsia (excessive thirst), and gastrointestinal distress (nausea, vomiting, anorexia, constipation).
Severe Systemic Outcomes: Prolonged, untreated hypercalcemia can lead to severe and life-threatening complications. These documented outcomes include permanent kidney damage (nephrocalcinosis and potential renal failure), elevated blood pressure, and disturbances in heart rhythm, such as cardiac arrhythmia.
Population Notes: Regulatory information notes that infants and small children may exhibit increased susceptibility to the toxic effects of Hypercalcemia.

When Immediate Medical Help Is Required

Regulatory documents mandate that when overdose symptoms are suspected, individuals must seek immediate medical attention. Urgent medical assistance is specifically required for any severe or escalating manifestations, such as signs of confusion, persistent vomiting, or symptoms related to changes in heart rhythm.

Overdose management requires immediate discontinuation of Colecalciferol and supportive care aimed at reversing the Hypercalcemia, as no specific antidote is known for this toxicity. Close monitoring of serum calcium and renal function is required during treatment.

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Therapeutic Uses of Dibase 25000

The section “What Dibase 25000 treats: main uses and benefits” focuses on the conditions, symptoms, and functional benefits associated with addressing severe Vitamin D deficits.

The Colecalciferol formulation is commonly used to help with the management of severe Vitamin D deficiency, which may require substantial assistance to address the systemic imbalance. This therapeutic domain also encompasses conditions associated with significant systemic discomfort, including osteomalacia in adults, rickets in children, and may be part of symptomatic management in conditions where functional stability becomes affected, such as in osteoporosis. Its primary therapeutic purpose is to promote mineral balance.

The product is relevant for easing symptoms that create noticeable physiological strain, such as bone pain and muscle weakness. Its use may assist with reducing symptoms related to physical discomfort and is applied in clinical settings that involve acute or unstable symptom patterns related to mineral deficits. One benefit of its use is that it:

“...supports the patient during difficult episodes by easing distress and helps improve day-to-day comfort during symptomatic periods.”

The medication's use is relevant for easing symptoms related to systemic imbalance and physical discomfort.


Quick Fact: Relief for Musculoskeletal Strain

Dibase 25000 is commonly used to help with symptom clusters that may become intense or disruptive, specifically muscle weakness and generalized physical discomfort stemming from severe Vitamin D deficiency. It contributes to improved comfort by supporting functional stability, which is considered relevant in scenarios where symptoms escalate temporarily.

Regulatory References

  1. NIH MedlinePlus overview on Cholecalciferol (Vitamin D3)
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Eligibility and Restrictions for Use

Eligibility for Dibase 25000 (Colecalciferol)

The population eligibility for this high-strength medicine is strictly defined by official regulatory documentation, primarily based on the patient's existing metabolic status and age.

Adults (18 years and over) are the population for whom the use of Dibase 25000 is approved for the treatment of clinically relevant vitamin D deficiency.

Absolute Prohibitions (Contraindications)

Official labeling contraindicates use in individuals with the following pre-existing conditions:

  • Metabolic Issues: Hypercalcaemia (high calcium in the blood), Hypercalciuria (high calcium in the urine), or Hypervitaminosis D.
  • Renal Disease: Severe renal impairment, Nephrolithiasis (kidney stones), or Nephrocalcinosis.
  • Hypersensitivity: Known allergy to Colecalciferol or any of the product's excipients.

Populations with Restricted or Non-Recommended Use

The 25,000 IU high-dose formulation is not recommended for several patient groups:

  • Age: Children and adolescents under 18 years of age.
  • Reproductive Status: Women who are pregnant or breast-feeding.

Use requires caution and monitoring of calcium levels in patients with non-severe renal impairment, sarcoidosis, or who are taking additional calcium supplements.

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What should I know about interactions with other medicines?

The official interaction profile of Colecalciferol (Dibase 25000) is defined by its effects on mineral balance and its established metabolic pathways, strictly according to regulatory documents.

Formal Combination Restrictions

  • Co-administration with other Vitamin D metabolites or analogues, such as Calcitriol, is formally documented as a combination that must be avoided due to the risk of additive effects and potential hypercalcaemia.

Interactions Affecting Mineral Balance

  • Thiazide diuretics (e.g., bendroflumethiazide) reduce the urinary excretion of calcium, an effect that increases the risk of hypercalcaemia when combined with Colecalciferol.
  • Concomitant use with cardiac glycosides (e.g., Digoxin) requires close regulatory oversight, as hypercalcaemia caused by Colecalciferol may potentiate the effects of the cardiac medicine, increasing the potential for cardiac arrhythmias.
  • Additional calcium-containing products or Vitamin D-enriched foods must be accounted for as they contribute to this additive hypercalcaemia risk.

Interactions Affecting Colecalciferol Exposure

  • Medicines that induce hepatic enzymes, such as anticonvulsants (e.g., Phenytoin, Phenobarbital) and the antibiotic Rifampicin, can accelerate the metabolic inactivation of Colecalciferol, thereby reducing its overall effectiveness.
  • Substances that impair fat absorption in the gut, including ion exchange resins (e.g., Cholestyramine) and mineral oil, may lower the gastrointestinal absorption and systemic exposure of Colecalciferol.
  • Glucocorticoids (steroids) are also documented to reduce the effect of Colecalciferol due to interference with its metabolism.

Population-Specific Notes

  • Monitoring of calcium levels is particularly important in elderly patients and those with renal insufficiency during concomitant use of thiazide diuretics or cardiac glycosides.
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Mechanism of Action

How Dibase 25000 Works

Dibase 25000 delivers cholecalciferol (Vitamin D3), a precursor molecule that undergoes metabolic steps to form the active hormone. Its mechanism is rooted in modulating gene expression to control the systemic fluxes of calcium and phosphate.

Bioactivation and Endocrine Conversion

The mechanism is initiated by the controlled, two-step enzyme-mediated conversion of cholecalciferol in the liver and kidneys into calcitriol (1,25( OH)2 D), the biologically active hormonal form. This activation cascade converts the inactive compound into the systemic signal that influences calcium and phosphate pathways.

Targeted Gene Regulation via the VDR

Calcitriol exerts its effects by binding to the nuclear Vitamin D Receptor (VDR), which acts as a transcriptional regulator to turn on or off specific genes in target tissues. This genomic mechanism influences the transcription of proteins responsible for calcium and phosphate transport across cell membranes.

Modifying Calcium and Phosphate Homeostasis

The signaling cascade modifies the movement of calcium and phosphate by increasing their intestinal absorption and influencing their reabsorption and deposition in the bone and kidneys. This modulation alters the circulating concentrations of calcium and phosphate.

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Dosage and Administration Information

Administration Guidelines for Dibase 25000

The following instructions for use are provided for high-strength Cholecalciferol (Vitamin D3) oral solution.

Administration Scope

Guideline Instruction
Route of Administration Oral route (by mouth).
Dosing Schedule Typically, one 25,000 IU bottle (single dose) is taken once a week for the initial treatment phase, or as determined by a healthcare professional.
Timing in Relation to Meals The dose should be taken preferably with a meal to enhance absorption.
Age Group Restrictions This strength (25,000 IU) is not recommended for use in children and adolescents under 18 years of age.

Preparation and Procedure

  1. Preparation: The product should be shaken before use.
  2. Consumption: The entire contents of the single-dose container must be taken.
  3. Mixing: The liquid can be taken directly or mixed with a small amount of cold or lukewarm food immediately prior to use. The mixture should not be prepared in advance or stored for a later time.

Missed Dose

If a dose is forgotten, the missed dose should be taken as soon as possible. However, if it is almost time for the next scheduled periodic dose, the missed dose should be skipped entirely, and the regular schedule should be continued. A double dose must not be taken to make up for a missed one.

These instructions define a high-dose, intermittent therapeutic protocol that requires careful scheduling and adherence to prevent accidental overdose or mismanagement. Monitoring of serum calcium levels is a required part of the overall treatment protocol.

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Recent Clinical Evidence

Research Evidence Overview

Dibase 25000, which contains Cholecalciferol (Vitamin D3), is typically used in the management of diagnosed Vitamin D deficiency. Recent clinical studies primarily focus on the role of high-dose, infrequent administration—such as the 25,000 IU strength—in achieving and maintaining adequate Vitamin D status, often defined as a serum level of 25-hydroxyvitamin D [25(OH)D] above 30 ng/mL.


Efficacy in Vitamin D Status

Randomized controlled trials (RCTs) have consistently shown that administration of 25,000 IU dosages can raise circulating 25(OH)D levels in individuals with a deficiency. One study that examined different regimens using multiples of 25,000 IU dosages reported that a majority of deficient subjects reached or surpassed the 20 ng/mL level after 12 weeks of treatment. Raising the serum 25(OH)D concentration is the key target in the management of deficiency, as lower levels are associated with various health risks, particularly in skeletal health.


Skeletal and Extra-Skeletal Health

The primary established role of Vitamin D is supporting bone health by influencing calcium absorption and metabolism. Studies have explored whether adequate Vitamin D status, achieved through supplementation, correlates with improved bone mineral density (BMD) and reduced risk of falls and fractures in older adults, though findings in community-dwelling adults remain mixed. Research also continues to investigate potential extra-skeletal benefits, including effects on the immune system, cardiovascular regulation, and glycemic control, but the evidence base for these specific applications remains inconclusive, and optimal dosing for non-skeletal outcomes is still a subject of research.

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Frequently Asked Questions (FAQ)

Common questions about Dibase 25000 (FAQ)


Q: What does the '25000' number on the box mean?

The '25,000' refers to the strength of the medicine, which is measured in International Units (IU). IU is the standard official measurement used for Vitamin D potency in regulatory documents. This unit represents the biological activity of the active ingredient, Colecalciferol.


Q: Why is Dibase 25000 prescribed in such high units?

According to official product information, this high strength is typically used as a therapeutic dose intended for the restoration of adequate vitamin levels. Unlike lower strengths used for daily prevention or maintenance, this dose is designed to address a diagnosed, clinically relevant deficiency.


Q: What is the difference between a high-dose Vitamin D like this and a daily multivitamin?

Dibase 25000 is classified as a high-strength medicinal product containing a therapeutic dose of Colecalciferol. A primary distinction is that this product is typically prescribed for the treatment of a diagnosed deficiency, whereas multivitamins contain lower amounts intended only for daily supplementation or prevention.


Q: What is the risk of having too much Vitamin D from Dibase 25000?

The primary serious risk of excessive use is a condition called hypervitaminosis D, which can lead to excessively high calcium levels in the blood, known as hypercalcaemia. Regulatory documents state that this condition has been associated with potential physical symptoms such as nausea and vomiting, and potential effects on kidney function.


Q: Does research support the use of Dibase 25000 for improving bone health?

Colecalciferol's established role is supporting bone health by improving the body's absorption of calcium and phosphorus. Studies and official information indicate that adequate Vitamin D status plays a critical role in bone mineralization and structural integrity throughout life.


Q: Is it okay to drink alcohol while taking Dibase 25000?

Official drug interaction information for Colecalciferol does not typically include a formal warning against the moderate use of alcohol. Patients are generally advised to discuss all substances, including alcohol, with their healthcare professional.


Q: What are the non-active ingredients in Dibase 25000?

The product is an oral solution, meaning the active ingredient is contained in an oily solution base, which is often pharmaceutical-grade olive oil. The full list of non-active ingredients, known as excipients, is detailed in the official product information leaflet provided with the medicine.


Q: Is Dibase 25000 associated with any specific diet restrictions?

Because this medicine significantly affects the body's mineral balance, official product information indicates that consuming additional calcium-containing products or Vitamin D-enriched foods must be taken into account. This helps to manage the risk of accumulating excessive calcium levels in the body.


Q: Is Dibase 25000 the same as other vitamin D products like D3?

Dibase 25000 contains Colecalciferol, which is chemically identical to Vitamin D3. A primary distinction is that this product is a high-concentration medicinal dose, typically requiring a prescription for the treatment of a diagnosed vitamin deficiency, as opposed to a lower-dose supplement.


Q: How long after starting Dibase 25000 will I see results?

The medicine must undergo a two-step metabolic conversion in the body before it becomes fully active. The intended effect is to raise internal blood vitamin levels, and the initial treatment phase is typically over several weeks to reach the intended target. The effects are metabolic and internal, not immediate.


Q: Is it normal to feel no difference after starting Dibase 25000?

It may be common for patients not to notice an immediate or distinct physical difference. The medicine's primary effect is to correct internal blood levels of Vitamin D and improve calcium metabolism. Since the effects are metabolic, they are not always outwardly noticeable.


Q: Does Dibase 25000 contain lactose or gluten?

Dibase 25000 is an oral solution, typically in an oil base, and is therefore unlikely to contain common tablet excipients like lactose or gluten. Patients are advised to consult the official package leaflet for the full list of ingredients (excipients) to check for any specific allergies or intolerances.


Q: What are the key safety considerations for Dibase 25000?

Key safety considerations, as stated in regulatory documents, include the potential risk of excessively high calcium levels in the blood (hypercalcaemia) and urine (hypercalciuria). This risk is why mandatory monitoring of calcium status is often a required part of the treatment protocol.


Q: What regulatory bodies have approved Dibase 25000?

The medicine is authorized for use in various major global regions, including countries within the European Economic Area (EEA) and the UK. Approval and oversight are provided by the respective national medicines regulatory authorities.


Q: Can Dibase 25000 cause changes in mood or sleep?

Changes in mood or consciousness are described in official documents as potential symptoms of a severe overdose condition called hypercalcaemia, but they are not listed as common side effects at therapeutic doses. Any changes should be brought to the attention of a healthcare professional.


Q: Are there different forms of Dibase 25000 available (e.g., tablet, liquid)?

Dibase 25000 is authorized as an oral solution (liquid) formulation, contained in single-dose units. While other strengths of Cholecalciferol may be available in different forms, this specific product strength is a liquid.


Q: Can taking Dibase 25000 affect laboratory test results?

The medicine is intended to significantly increase the blood level of 25( OH) D (the storage form of Vitamin D), which is the primary lab test used to monitor Vitamin D status. The medicine is used to achieve a change in this specific test result as part of the monitoring protocol.


Q: What is the half-life of the active ingredient in Dibase 25000?

The active component, Colecalciferol, is converted into a storage form known as 25( OH) D. Official pharmacokinetic information indicates that this storage form is fat-soluble and has a long half-life, meaning the storage form is present in the body for an extended period.


Q: Is Dibase 25000 mentioned in official guidelines for Vitamin D deficiency?

Colecalciferol, the active ingredient, and therapeutic high-dose regimens are widely recognized by national and international clinical practice guidelines. It is designated as the appropriate agent for the treatment of established Vitamin D deficiency.


Q: Are there research trials currently investigating new uses for Dibase 25000?

Research continues to investigate potential effects of Vitamin D beyond its established role in bone health. This includes areas like the immune system and cardiovascular regulation, but the evidence base for these extra-skeletal uses is still considered inconclusive in regulatory documents.


Q: What are the main symptoms of Vitamin D deficiency that Dibase 25000 is used for?

The medicine is used to correct a deficiency that may be associated with symptoms such as muscle pain, bone pain, and muscle weakness. However, it is noted that many individuals with a deficiency do not report any noticeable symptoms.


Q: Is it common for people to be on Dibase 25000 long-term?

The 25,000 IU strength is typically used for a short duration as an initial therapy to rapidly correct the deficiency. Official guidance indicates that long-term management protocols often involve the use of a lower maintenance dose following initial therapy.


Q: Does Dibase 25000 require a prescription?

Due to the high concentration of the active ingredient and its indication for the treatment of a diagnosed condition, this medicine is a prescription-only product regulated by national health authorities.

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How should Dibase 25000 be stored and disposed of?

How to Store and Dispose of Dibase 25000

The storage of Dibase 25000 (Colecalciferol 25,000 IU Oral Solution) must strictly adhere to regulatory requirements to maintain product stability.

Storage Conditions

Requirement Specific Rule
Temperature Limit Do not store above 30^circC (86°F).
Prohibited Environment Do not freeze or refrigerate the oral solution.
Protection Keep the bottle in the original outer carton to protect from light.
Child Safety Store the medicine out of the sight and reach of children.

Disposal Instructions

Any unused or expired Dibase 25000 must be disposed of according to local requirements. It is officially mandated that the medicine must not be thrown away via household waste or wastewater to prevent environmental contamination.

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

Equivalent of Dibase 25000 found in:

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