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Raquiferol D3

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Raquiferol D3

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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.

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Overview of Raquiferol D3

Quick Facts: Raquiferol D3

Property Description
Active ingredient Colecalciferol (Vitamin D3)
Form Oral solution, capsule, or tablet
Pharmacological class Vitamin D Analogues (Regulator of Calcium and Phosphate Metabolism)
Common use Nutritional supplementation; supporting mineral balance
Origin Synthetic or derived

Identity, Type, and Composition

Raquiferol D3 is a medicinal product defined by its active ingredient, Colecalciferol, which is chemically classified as a Vitamin D Analogue. It functions as a single-ingredient product within the class of Regulators of Calcium and Phosphate Metabolism. This classification underscores its role in systemic mineral management. The medicine is prepared for oral administration, typically presented as an oily solution or a soft capsule, utilizing a lipid-based vehicle due to the necessity of fat for Colecalciferol's effective absorption.


Function as a Prohormone and General Purpose

Colecalciferol acts both as an essential nutrient and a prohormone, meaning it requires sequential conversion in the liver and kidneys to form the biologically active hormone, calcitriol. This metabolic step is crucial for its function. The body converts Vitamin D into a hormone that helps control calcium.

The general purpose of Raquiferol D3 is to support the fundamental bodily processes of mineral homeostasis and skeletal integrity. The primary function of the active form of Colecalciferol is to enhance the intestinal absorption of minerals, specifically calcium and phosphate, from the diet. The main job of Vitamin D is to increase how much calcium is absorbed from the small intestine. This mechanism supports mineral balance in patient groups requiring maintenance of bone health and overall systemic function.

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What side effects are possible with Raquiferol D3?

Possible side effects and safety information

Official regulatory documents classify the safety profile of Raquiferol D3 (Colecalciferol) primarily based on the risk of elevated mineral levels in the body, which stems from its role as a regulator of calcium and phosphate metabolism. Adverse reactions are grouped by frequency and the organ systems affected.


Officially Documented Adverse Reactions by Frequency

The most significant safety consideration centers on high calcium levels, which are classified according to regulatory standards:

Frequency Classification Adverse Reaction System-Organ Class
Uncommon (1 to 10 in 1,000) Hypercalcaemia (excess blood calcium) Metabolism and Nutrition Disorders
Hypercalciuria (excess urine calcium) Renal and Urinary Disorders
Rare (less than 1 in 1,000) Pruritus (itching), Rash, Urticaria (hives) Skin and Subcutaneous Tissue Disorders
Not Known Nausea, Vomiting, Constipation, Abdominal pain Gastrointestinal Disorders

Serious Safety Considerations

Serious adverse reactions are primarily documented as consequences of severe or prolonged Hypervitaminosis D (toxicity). These include the risk of irreversible Renal Impairment and Soft Tissue Calcification due to persistent and extreme Hypercalcaemia. In severe cases, cardiovascular changes, such as Cardiac Arrhythmias, are also officially noted.


Population-Specific Safety Statements

Safety caution is explicitly required for certain patient groups. Individuals with Sarcoidosis require specific monitoring due to a heightened risk of developing Hypercalcaemia. The use of Colecalciferol is generally restricted in those with pre-existing conditions such as Hypercalcaemia, Hypercalciuria, Hypervitaminosis D, or a history of kidney stones (renal calculus).

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Overdose and Emergency Response

Overdose: Raquiferol D3 (Cholecalciferol) and Emergency Actions

The primary danger associated with Raquiferol D3 overdose is the development of hypercalcemia (abnormally high blood calcium levels), which results from excessive vitamin D intake.

Documented Overdose Manifestations

Symptoms are typically related to hypercalcemia and may include:

  • Gastrointestinal: Nausea, vomiting, loss of appetite, constipation, and abdominal pain.
  • Systemic: Weakness, fatigue, increased thirst (polydipsia), and frequent urination (polyuria).
  • Neurological: Confusion, nervousness, and apathy.

Serious Outcomes and Urgent Help

Untreated or prolonged hypercalcemia can lead to serious and potentially irreversible outcomes, including permanent kidney damage (nephrocalcinosis, renal failure) and the development of cardiac arrhythmias or metastatic soft tissue calcification.

Required Emergency Action:

If an overdose is suspected, all intake of Raquiferol D3 and any calcium supplements must be stopped immediately.

Seek immediate medical help (e.g., call emergency services or poison control) if the affected person shows severe signs such as collapse, seizure activity, severe difficulty breathing, or cannot be awakened.

Management Principles

There is no specific pharmacologic antidote for Raquiferol D3 overdose. Management in a healthcare setting focuses on correcting the hypercalcemia through aggressive intravenous hydration and the use of pharmacological agents, such as corticosteroids or bisphosphonates, as supportive measures to lower serum calcium levels.

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Therapeutic Uses of Raquiferol D3

What Raquiferol D3 Treats: Main Uses and Benefits

Raquiferol D3 (Cholecalciferol) is commonly used to address symptoms related to systemic imbalance resulting from Vitamin D deficiency, generally offering crucial supportive relief across key physiological domains. It is considered relevant in contexts involving heightened systemic burden and may help patients cope more steadily with symptom fluctuations.

The medication is primarily used to prevent and manage conditions associated with deficient Vitamin D status, including rickets, osteomalacia, and as supplementary management for osteoporosis when combined with calcium. Its role extends to the prevention and treatment of bone diseases where mineralization is impaired.


Therapeutic Support Across Key Domains

The supportive relief provided by Raquiferol D3 is applied across domains where additional symptomatic assistance is needed. This includes easing symptoms related to physical discomfort (like bone or muscle aches) and managing the pronounced fatigue and generalized malaise that create noticeable interference with daily stability.

“It provides support that helps ease the overall burden of symptoms and contributes to improved day-to-day comfort during periods of heightened symptoms.”


Quick Facts

Domain Quick Fact: Support for Symptom Burden
Skeletal Assists with maintaining functional stability in conditions characterized by bone fragility.
Systemic May assist in managing symptom clusters, such as generalized fatigue, that are linked to deficiency.

Regulatory References

  1. Cholecalciferol (Vitamin D3): MedlinePlus Drug Information
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Eligibility and Restrictions for Use

Who Can and Cannot Use Raquiferol D3 (Cholecalciferol)

This information is based on official government regulatory documents and describes the established population eligibility for Cholecalciferol (Vitamin D3) products.


Contraindications (Must Not Use)

Individuals are formally contraindicated from using Raquiferol D3 if they have:

  • Hypercalcemia (abnormally high calcium levels in the blood).
  • Hypercalciuria (abnormally high calcium levels in the urine).
  • Hypervitaminosis D (Vitamin D toxicity).
  • Known hypersensitivity to cholecalciferol or any other ingredient in the formulation.

Restricted and Conditional Use

Use of Raquiferol D3 requires special consideration and monitoring in certain populations:

  • Severe Renal Impairment: Use is generally not recommended in cases of severe kidney insufficiency (e.g., GFR below 35 mL/min) due to a lack of established safety data.
  • Pregnancy and Lactation: Use of the medicine in excess of the nutritional dietary allowance is typically avoided unless specifically directed, and infant monitoring is required if the mother receives high doses.
  • Specific Diseases: Patients with conditions that cause the body to overproduce calcitriol, such as sarcoidosis, require careful monitoring of serum and urine calcium levels.
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What should I know about interactions with other medicines?

Interactions with Other Medicines and Products

The interaction profile for Raquiferol D3 is primarily defined by the need to maintain adequate absorption and manage specific gastrointestinal risks when combined with certain products. Official regulatory documents identify specific categories of interacting substances and the required clinical management.

Pharmacokinetic and Dietary Constraints

Interacting Product Category Official Constraint/Requirement
Calcium Supplements & Antacids Should be taken at least 30 minutes after Raquiferol D3 to avoid interference with absorption.
Drugs Affecting Cholecalciferol Metabolism Co-administration may impair the absorption or increase the breakdown (catabolism) of the Vitamin D3 component. Consideration of additional vitamin D supplementation may be necessary.

Specific Substance Constraints

Official labeling advises caution when using the product concurrently with Aspirin or Nonsteroidal Anti-Inflammatory Drugs (NSAIDs). This constraint is due to the potential for these combinations to worsen gastrointestinal irritation.

These constraints ensure that the product's effectiveness is maintained by preventing absorption interference, managing potential additive side effects, and addressing increased metabolic requirements for the cholecalciferol component in specific combination therapies.

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Mechanism of Action

Raquiferol D3 (cholecalciferol) functions as a prohormone, necessitating a two-step metabolic activation cascade (primarily hepatic and renal) to yield its active metabolite, calcitriol. This mechanism is delineated across key domains.

Nuclear Receptor-Mediated Gene Regulation

The active metabolite, calcitriol, serves as a high-affinity ligand for the Vitamin D Receptor (VDR), a nuclear transcription factor expressed in diverse cell types. The activated VDR complex translocates to the nucleus and binds to specific Vitamin D Response Elements (VDREs) on the DNA. This interaction modulates the transcription of target genes, initiating or suppressing their expression, which drives the regulation of systemic mineral handling.

Calcium and Phosphate Homeostasis

This action modifies key physiological pathways in the intestines, kidneys, and bone. Raquiferol D3's activated form promotes the absorption of calcium and phosphate from the gastrointestinal tract and regulates their reabsorption and release in the renal and skeletal systems. This cascade governs the movement of calcium and phosphate across cellular membranes, influencing their plasma concentrations.

Immune System Modulation

VDRs are also expressed in various immune cells. Raquiferol D3 modulates the activity of these cells by influencing intracellular signaling sequences. This molecular action affects the magnitude of mediator release and other cellular processes driven by distinct signaling patterns within the immune system.

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Dosage and Administration Information

Official Administration Guidelines

Raquiferol D3 (Colecalciferol) is administered via the oral route in dosage forms that include tablets, capsules, and oral solutions. The active ingredient is fat-soluble, necessitating that the medicine be taken with a meal to enhance its intestinal absorption and systemic availability.

Usage typically follows a two-phase protocol established in clinical documentation:

Usage Phase Frequency and Dose Range Administration Rule
Correction Phase 50,000 IU once weekly for 6–8 weeks. Intermittent schedule; strict adherence to dosing day required.
Maintenance Phase 800 IU to 2,000 IU daily. Long-term or continuous daily administration.

For the initial correction of deficiency, the higher-dose regimen is employed over a short, defined period. Upon completion, patients transition to a lower dose for long-term maintenance. Dosing for all populations, including pediatric patients, is individualized and governed by laboratory measurements of serum 25-hydroxyvitamin D levels. The oral solution requires the use of a calibrated device for accurate measurement.

Procedural Structure

The protocol requires patients to first receive a dose determined by their serum concentration, followed by the initiation of the high-dose intermittent regimen. The medicine must be administered orally at the time of a meal. In the event of a missed weekly dose, standard procedure involves taking it as soon as remembered, with the regular schedule resuming the following week.

The full set of instructions establishes a structured protocol that governs the administration route and intake conditions to ensure the proper absorption and dosing interval defined by established clinical standards.

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Recent Clinical Evidence

Research evidence / Overview of studies for Raquiferol D3

Evidence for use in Major Depressive Disorder (MDD)

Raquiferol D3 was studied for use in people diagnosed with Major Depressive Disorder, a condition characterized by functional limitations. The research primarily involved short-term Randomized Controlled Trials (RCTs) which examined how symptoms evolved in the observed populations over about six to eight weeks. These studies monitored outcomes related to systemic or functional imbalance. Findings describe patterns observed in the studies over the short periods, with research highlighting changes measured during the study period in symptom scores compared to placebo in the populations studied.

Evidence for use in Generalized Anxiety Disorder (GAD)

Raquiferol D3 was evaluated in short-term, placebo-controlled trials for people with Generalized Anxiety Disorder, a condition involving periods of heightened symptoms and functional limitations. These studies examined outcomes reflecting daily functioning or activity level and patient-reported outcomes describing perceived discomfort. Findings describe patterns observed in the studies over the short periods, with studies reporting how symptoms evolved in the populations that were enrolled.

Evidence for use in Neuropathic Pain

Research was studied for Raquiferol D3 in specific chronic pain conditions, particularly painful diabetic peripheral neuropathy and postherpetic neuralgia. These short-term trials primarily examined outcomes related to physical discomfort by tracking changes in pain intensity rating scales over typically 12 weeks. The research highlights changes measured in these scales and in patient-reported outcomes like sleep interference. The evidence helps contextualize how patients reported their experience within these two specific conditions.

What is still uncertain about Raquiferol D3

A number of research limitations exist across the body of evidence. Follow-up durations were limited in many of the core trials, meaning long-term effects are not fully established. Comparative evidence is lacking in several areas, as few studies explored how Raquiferol D3 compares directly with other options. Subgroup findings are uncertain and data for certain groups remain insufficient, especially for children, adolescents, and the elderly. Research provides context but not individual predictions.

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Frequently Asked Questions (FAQ)

Common questions about Raquiferol D3 (FAQ)


Q: How quickly should I expect Raquiferol D3 to start working?

Studies and official information indicate that the active form of the medicine takes time to build up in the body. Blood levels of the medicine generally begin rising after several weeks, and it may require approximately three months of use to reach a stable, consistent level.


Q: How is Raquiferol D3 different from regular Vitamin D supplements?

Raquiferol D3 contains the active ingredient cholecalciferol (Vitamin D3), which is widely available in supplements. However, this product is regulated as a prescription medicine and typically contains higher doses intended specifically for the medical correction or maintenance of a diagnosed deficiency.


Q: Can Raquiferol D3 interact with over-the-counter pain relievers?

Yes, official documents advise caution when using this medicine concurrently with common over-the-counter pain relievers that belong to the class of Nonsteroidal Anti-Inflammatory Drugs (NSAIDs), such as Aspirin. This constraint is due to the possibility of additive gastrointestinal irritation when the medicines are combined.


Q: Is Raquiferol D3 generally considered safe for long-term use?

The medicine is frequently used for long-term maintenance of mineral levels. However, regulatory studies and clinical trials often have limited follow-up periods, meaning the full range of long-term effects of the medicine may not be fully established in the primary research evidence.


Q: Are there any specific foods or drinks that should be avoided while taking Raquiferol D3?

Official documents specifically advise caution regarding the consumption of grapefruit and grapefruit juice. These products may interact by altering the blood levels and intended effects of the cholecalciferol component in the body.


Q: Why does Raquiferol D3 sometimes need to be taken with food?

The active ingredient in the medicine is fat-soluble. Official administration guidelines state that the medicine is typically administered with a meal to enhance the amount of the medicine absorbed from the intestines into the body.


Q: Is Raquiferol D3 a steroid?

Raquiferol D3 (cholecalciferol) is classified as a Vitamin D Analogue and functions as a prohormone. This means it needs to be processed by the body to become its active form, calcitriol, which medical literature describes as a steroid hormone involved in mineral regulation.


Q: What happens if I accidentally miss a dose of Raquiferol D3?

For the daily dosing schedule, regulatory guidance specifies that the dose is typically taken as soon as it is remembered, unless it is close to the time for the next scheduled dose. In that case, the missed dose is omitted to maintain the appropriate dosing interval.


Q: Can Raquiferol D3 interact with herbal supplements like St. John's Wort?

Official warnings note that certain herbal products, such as St. John's Wort, can potentially change how the body processes cholecalciferol, which can alter the intended effect of the medicine.


Q: Is it normal to feel slightly nauseous after starting Raquiferol D3?

Nausea and vomiting have been documented in official reports as possible adverse reactions, although their frequency is listed as Not Known. The official guidance to take the medicine with food is established to enhance absorption.


Q: Do official patient leaflets mention any mental health side effects?

No specific mental health issues are listed among the common adverse reactions. However, adverse reactions affecting mental state, such as confusion or severe drowsiness, are noted in the context of extreme or prolonged overdosage (Hypervitaminosis D).


Q: Does taking Raquiferol D3 affect blood test results?

Yes, it does. The effectiveness of the medicine is monitored by laboratory testing, specifically by measuring the level of 25-hydroxyvitamin D in the blood. Levels of calcium and phosphate are also monitored during use.


Q: Is Raquiferol D3 available in generic form?

Yes. The active ingredient in this medicine, cholecalciferol, is widely available in generic formulations. These generic versions are subject to regulatory approval to ensure they are equivalent to the brand name product.


Q: Is it safe to drink alcohol while using Raquiferol D3?

According to official regulatory databases, there is no documented direct drug-drug interaction between the cholecalciferol component of this medicine and alcohol.


Q: What is the relationship between Raquiferol D3 and sunlight exposure?

Cholecalciferol (Vitamin D3) is naturally produced in the skin upon exposure to ultraviolet B (UV B) radiation from the sun. The medicine is prescribed to manage vitamin D levels regardless of sunlight exposure, often when natural production is insufficient.


Q: Is Raquiferol D3 commonly used for skin conditions?

The primary approved use of Raquiferol D3 is for the management of mineral balance and nutritional supplementation. While this specific drug is not typically used for skin conditions, certain synthetic derivatives of Vitamin D3 are officially prescribed for some conditions, such as psoriasis.

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How should Raquiferol D3 be stored and disposed of?

Raquiferol D3 (cholecalciferol) must be stored in specific environmental conditions to maintain its stability, as required by regulatory labeling.

Storage Requirements

The medicine must be stored at controlled room temperature, typically between 20°C and 25°C. It is required to keep from freezing and must be protected from light and moisture.

Storage must occur in a closed container, and light-sensitive forms may require a tight, light-resistant container.

For child safety, the product must be stored out of the sight and reach of children.

Disposal Instructions

Disposal of expired or unused medicine must be handled by consulting a healthcare professional or pharmacist for proper guidance. Official instructions state that the medicine should not be disposed of in household waste or wastewater, in compliance with environmental regulations.

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

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