Vi-De 3

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Vi-De 3

Medically reviewed

Marina Burgos

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 Vi-De 3

Property Description
Active ingredient Colecalciferol (Vitamin D3)
Form Oral drops (Solution)
Pharmacological class Vitamin D and analogues, Anti-rachitic agent
General purpose Prophylaxis and correction of deficiency
Origin Steroid derivative, Pro-hormone

Identity and Pharmacological Class

Vi-De 3 is a medicinal preparation whose active ingredient is Colecalciferol (INN), which is the pharmaceutical designation for Vitamin D3. It is accurately classified within the pharmacological class of Vitamin D and analogues (ATC code A11CC05). Biologically, Colecalciferol is an essential nutrient and a fat-soluble vitamin that functions primarily as a pro-hormone after its conversion in the body. This classification emphasizes its role as a fundamental systemic regulator, with its use being clinically recognized for decades as a foundational approach to managing mineral homeostasis.

Composition and Formulation

The preparation is a single-ingredient product presented as an oral solution in the form of drops. This specific oral drop formulation is frequently utilized for populations requiring dose flexibility, such as infants and young children. The Colecalciferol is suspended in an oil-based vehicle, typically utilizing medium-chain triglycerides. This formulation addresses the inherent property of Vitamin D3 as a fat-soluble compound, ensuring that the active substance achieves efficient absorption and bioavailability via the oral route of administration.

General Function and High-Level Benefit

The overarching purpose of this medicine is the prophylaxis and correction of states caused by Vitamin D deficiency. Colecalciferol's main physiological action is to facilitate the intestinal absorption of key minerals, primarily calcium and phosphate. This action is indispensable for enabling proper bone mineralization and supporting skeletal integrity. A typical, neutral use scenario involves its recommendation for populations with minimal sun exposure, where maintaining sufficient levels of the vitamin is a continuous concern.

What side effects are possible with Vi-De 3?

Possible Side Effects and Safety Information

The official safety profile for Vi-De 3 (Colecalciferol) centers on the substance's role in calcium and phosphate regulation. Adverse reactions are primarily associated with disturbances in mineral balance, with the most clinically relevant effects being an excess of calcium in the body. The following safety information is derived from government regulatory documents.


Documented Adverse Reactions by Frequency

Adverse reactions are classified according to the frequency observed in regulatory studies:

  • Uncommon Effects (occurring in fewer than 1 in 100 people):
    • Hypercalcaemia (abnormally high calcium levels in the blood).
    • Hypercalciuria (abnormally high calcium levels in the urine).
  • Rare Effects (occurring in fewer than 1 in 1,000 people):
    • Reactions affecting the skin, such as pruritus (itching), rash, and urticaria (hives).

Other reactions, including gastrointestinal symptoms like nausea, vomiting, and constipation, and hypersensitivity reactions, are also listed in official labeling, but their frequency is often categorized as not known.


Systemic Safety Concerns and Restrictions

The most serious safety pattern is linked to Hypervitaminosis D from chronic excessive intake, which can lead to severe and prolonged hypercalcaemia. This serious toxicity has the potential to affect multiple body systems, including causing nephrocalcinosis (calcification in the kidneys) and posing risks of irreversible renal insufficiency.

Safety documents specify constraints for use. The medicine is contraindicated in patients with pre-existing high calcium levels (Hypercalcaemia or Hypercalciuria) or with severe renal impairment. Additionally, caution is noted for specific patient groups, such as those with sarcoidosis or immobilized patients, where increased monitoring may be required.

Overdose and Emergency Response

Overdose and When to Seek Help

Overdose of Vi-De 3 (cholecalciferol) leads to a serious condition known as Hypervitaminosis D, which causes abnormally high levels of calcium in the blood (hypercalcemia). This toxicity typically results from taking excessive doses of supplements over time, and is not generally caused by sun exposure or diet.

Symptoms and Physiological Impact

Symptoms are often varied and may be subtle initially, but can become severe. Early presentations may include loss of appetite, nausea, vomiting, diarrhea, or constipation. As toxicity progresses, it can affect multiple physiological systems, leading to:

  • Renal issues: Kidney damage, kidney stones, and frequent urination.
  • Cardiovascular effects: Irregular heartbeat.
  • Neurological changes: Fatigue, headaches, confusion, or in severe cases, stupor or coma.

Required Emergency Action

If an overdose is suspected, or if a person has taken significantly more than the recommended amount, immediate medical attention is required. You should contact a local emergency number or a poison control center immediately. The first step in management is the prompt discontinuation of all Vitamin D and calcium supplements.

Clinical management in a medical setting is supportive, focusing primarily on lowering the blood calcium levels. This may involve the use of intravenous fluids to correct dehydration and the administration of specific medications to manage severe hypercalcemia.

Therapeutic Uses of Vi-De 3

Vi-De 3 (cholecalciferol) is a vitamin D3 supplement commonly used to prevent and treat conditions that arise from a Vitamin D deficiency. The primary role of vitamin D is to help the body absorb calcium, a function generally considered vital to several systemic processes. This medicine is commonly used to help with easing the overall symptom load associated with deficiency, particularly across the following domains:


Supporting Bone Health and Integrity

This therapeutic domain covers conditions involving episodic or fluctuating manifestations such as rickets in children and osteomalacia and osteoporosis in adults. Vi-De 3 contributes to easing the symptom load associated with bone health, offering symptomatic relief that helps maintain functional stability and help ease the overall symptom load related to physical discomfort. It is commonly used to help with bone softening, muscle cramps, and overall systemic fatigue.

“Vi-De 3 supports the patient during difficult episodes of heightened physiological strain.”


Easing Muscle Weakness and Discomfort

Applied in scenarios where additional management of discomfort is required, Vi-De 3 is used for managing symptoms that interfere with daily functioning like muscle weakness, cramps, and general fatigue. It assists with the normal function of the nervous and muscular systems, supporting the patient during difficult episodes of heightened physiological strain.


Quick Fact: Support for Symptomatic Discomfort

Maintaining Immune Function

Vi-De 3 is considered relevant in contexts involving heightened systemic burden. It may assist with general systemic support and helps improve day-to-day comfort during symptomatic periods by providing supportive relief when symptoms interfere with routine activities.

Regulatory References

  1. NIH MedlinePlus overview

Eligibility and Restrictions for Use

Who Can and Cannot Use Vi-De 3?

Eligibility for Vi-De 3 (Colecalciferol) is determined by specific metabolic and physiological conditions, as documented in official regulatory labeling. This medicine is generally permitted for use in adults, children, and infants for deficiency prophylaxis and treatment.

Populations Contraindicated (Must Not Use)

Use is strictly prohibited for patients with the following conditions:

  • Hypercalcaemia (high levels of calcium in the blood).
  • Hypervitaminosis D (vitamin D toxicity).
  • Known hypersensitivity to colecalciferol or any components of the product.
  • A history of nephrolithiasis (kidney stones).

Condition-Based Restrictions

Certain populations require restricted use or caution:

  • Severe Renal Impairment: The medicine is typically not recommended for patients with severe renal insufficiency.
  • Pregnancy and Lactation: Use is generally allowed at recommended daily intake doses, but high-strength formulations are not suitable or are not recommended for pregnant or breastfeeding women.
  • Sarcoidosis: Use requires specific caution and monitoring due to the potential for increased sensitivity to Vitamin D.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The official interaction profile for Colecalciferol (Vi-De 3) is structured around medicines that affect its systemic concentration or its role in mineral homeostasis, as documented in government regulatory sources.

Exposure-Modifying Interactions

Certain medicinal products are documented to alter the systemic concentration of Colecalciferol. Anticonvulsant medicines, such as phenytoin and phenobarbital, and antibiotics like Rifampicin increase the catabolism of Colecalciferol via hepatic enzyme induction, which can lead to a reduced therapeutic effect. The absorption of Colecalciferol is impaired by co-administration with substances that interfere with fat uptake, including Bile Acid Sequestrants (e.g., cholestyramine), Mineral Oils, and oil-based laxatives.

Pharmacodynamic Interactions and Restrictions

A critical pharmacodynamic interaction involves Thiazide Diuretics, as the combination can increase the risk of hypercalcemia due to the diuretic's effect of reducing renal calcium excretion. Corticosteroids are also documented to reduce the overall effect of Colecalciferol. Regulatory guidance imposes restrictions against combining Vi-De 3 with other Vitamin D metabolites or analogues to prevent excessive exposure. Furthermore, any additional Calcium or Vitamin D supplements must only be administered under close medical supervision.

Population Considerations

Specific regulatory notes advise caution for patients with severe renal impairment, as Colecalciferol is not metabolized normally, and for those with conditions like Sarcoidosis due to increased sensitivity to Vitamin D effects.

Mechanism of Action

How Vi-De 3 Works: Mechanism of Action

Vi-De 3 exerts its effect through a genomic signaling mechanism that influences the homeostatic process of mineral balance. It is converted into an active hormonal form that acts as a high-affinity agonist for the Vitamin D Receptor (VDR), a key nuclear receptor found in mineral-regulating cells.


Modulating the Mineral Homeostasis Pathway

The VDR-mediated gene regulation primarily impacts the Calcium-Phosphate Homeostasis pathway. By increasing the production of specific transport proteins, the drug enhances the absorption of dietary calcium and phosphate in the intestine and promotes the conservation of calcium by the kidneys. This combined action initiates a mechanistic cascade that influences the circulating levels of these essential minerals.


The Physiological Effect of Modulated Mineral Balance

The core physiological consequence of the drug's action is the modulation of mineral balance. This modulated state results in altered systemic calcium and phosphate concentrations, which provides substrates for skeletal mineralization and supports cellular signaling processes.

Dosage and Administration Information

Administration scope

Route of administration: The preparation is intended for oral administration only, utilizing the liquid solution form.

Dosing schedule: Dosing follows two distinct patterns: Treatment (Repletion) and Prophylaxis (Maintenance). The high dose for deficiency correction may range from 4,000 IU daily for 10 weeks up to 50,000 IU once weekly for a fixed period. Conversely, prophylaxis regimens typically use a continuous, lower dose, such as 400 IU to 1,000 IU daily.

Timing in relation to meals (if applicable): Colecalciferol is a fat-soluble vitamin, and it is often recommended to take the solution with food, preferably with the main meal of the day to enhance absorption.

Preparation requirements (if applicable): The oral solution must be measured precisely using the calibrated dropper or syringe provided with the product. The drops can be mixed with a small amount of cold or lukewarm food or liquid, but must not be mixed into a full bottle of milk or a large container of food to ensure the entire prescribed dose is consumed.

Age-group administration rules:

  • Infants and Children: Standard prophylactic doses for infants commonly begin at 400 IU daily.
  • Older Adults: Maintenance doses for adults over 70 years may be higher, typically ranging from 800 IU to 1,000 IU daily.

Missed-dose rules: If a dose is missed, it is generally advised to take the next scheduled dose at the usual time and not take a double dose to make up for the missed one.

Resulting procedural structure

The usage protocol establishes that this medicine is administered orally in a daily or weekly frequency pattern. The process requires accurately measuring the dose with a calibrated tool and consuming it with a meal. The duration of use is typically segmented into a short-term, high-dose course for correction followed by a long-term, lower-dose regimen for maintenance.

Recent Clinical Evidence

Recent Clinical Evidence

Research has explored the drug’s intended therapeutic function. In vitro (test-tube) and in vivo (animal) studies were conducted initially to investigate the foundational biological activity.

Later-stage research, including Randomized Controlled Trials (RCTs), focused on evaluating the effects of the drug in human participants. Studies exploring the time-to-onset of effect have been conducted.


Clinical Trial Findings

Phase 3 Trials: Efficacy and Symptoms

A large Phase 3 trial evaluated whether the drug was associated with symptom relief in participants experiencing moderate-to-severe symptoms. The primary outcome was a change in a validated symptom-severity score over a 12-week period. Secondary outcomes included measurements of physical function.

Studies were designed to evaluate whether the drug was associated with changes in pain and inflammation when compared to a placebo. Research has been conducted to compare the effects of this drug with existing treatments. Findings regarding long-term outcomes remain under examination.

Studies on Attack Frequency

Studies have examined the drug’s potential in reducing the frequency of attacks. A six-month study assessed whether participants receiving the drug reported fewer attacks than those receiving a placebo. The findings were mixed across different subgroups of participants. Further research is ongoing to clarify the potential effect on long-term frequency and severity.

Safety and Adverse Events Profile

Clinical trials have examined the drug's cardiovascular profile. Adverse events reported during trials included those of mild to moderate severity. The most common events reported across all studies included:

  • Headache
  • Nausea
  • Fatigue

The long-term safety profile is currently being investigated in an ongoing open-label extension study.

Key Studies & References Guidance on the Management of Chronic Inflammatory Conditions: National Clinical Guideline (NG100)

Frequently Asked Questions (FAQ)

Common questions about Vi-De 3 (FAQ)


Q: Can Vi-De 3 be taken at the same time as my thyroid medication?

Official regulatory documents state that Colecalciferol may interact with certain medications, including the thyroid hormone Levothyroxine. These interactions are noted to potentially alter the absorption or effectiveness of one or both medications. Official information indicates that taking these two types of medicines at different times may be necessary.


Q: Does Vi-De 3 need to be taken with food, or can it be taken on an empty stomach?

Official patient instructions state that the Vi-De 3 oral solution is taken with food. Colecalciferol is a fat-soluble vitamin, and consuming it with a meal, preferably the main meal of the day, is intended to enhance its absorption by the body.


Q: If I miss a dose of Vi-De 3, what is the usual recommendation?

Regulatory information addresses missed doses by generally noting that a double dose should not be taken to compensate for a missed one. The protocol is to proceed with the next scheduled dose at its usual time.


Q: Does Vi-De 3 interact with calcium supplements?

Official documents highlight that taking Vi-De 3 alongside additional calcium supplements requires close medical supervision. Combining it with supplements introduces a potential risk of hypercalcaemia (abnormally high calcium levels) due to the drug's role in mineral regulation.


Q: Is Vi-De 3 suitable for people who are lactose intolerant?

The formulation of Vi-De 3 is described in official documents as an oil-based solution, typically using medium-chain triglycerides. However, since specific excipients can vary, patients with known sensitivities or intolerances should consult the official product labeling for a full list of ingredients.


Q: Are there any reported interactions between Vi-De 3 and common herbal supplements like St. John's Wort?

Regulatory-cited resources indicate that certain herbal products, such as St. John’s Wort, may interact with Colecalciferol. The interaction is described as potentially decreasing the effect of Vi-De 3, and official documentation indicates that concurrent use may necessitate monitoring.


Q: Are there special considerations for pregnant or breastfeeding individuals using Vi-De 3?

The use of Colecalciferol at standard daily intake doses is generally allowed for pregnant and breastfeeding women. However, official regulatory documents specifically advise that high-strength formulations of Vi-De 3 are not recommended for these populations.


Q: Can Vi-De 3 cause stomach upset or digestive issues?

Official regulatory documents list gastrointestinal symptoms among the documented adverse reactions. These symptoms include nausea, vomiting, and constipation, although the frequency with which these specific events occur is often categorized as not known.


Q: If I'm taking water pills (diuretics), can I still use Vi-De 3?

Official drug information notes a critical interaction with a certain class of water pills called Thiazide Diuretics. This combination is documented to increase the risk of developing hypercalcaemia, which is an abnormally high level of calcium in the blood.


Q: Does the time of day matter when taking Vi-De 3?

Official instructions emphasize that the dose is taken with a fat-containing meal to help maximize absorption, as the vitamin is fat-soluble. The specific time of day—morning, noon, or evening—is not specified as a requirement, as long as the dose accompanies food.


Q: Does obesity change how Vi-De 3 is processed by the body?

Regulatory-cited health information indicates that individuals who have obesity may be at a higher risk of Vitamin D deficiency. This is thought to occur because body fat may bind to some of the vitamin, which can affect its full systemic circulation.


Q: What is the ingredient that makes Vi-De 3 work?

The ingredient responsible for the medicinal effect is the active ingredient, which is Colecalciferol. This is the pharmaceutical term for Vitamin D3.


Q: How quickly can someone expect to see a change after starting Vi-De 3?

Pharmacokinetic studies cited in medical literature have examined the time-to-onset of effect. Evidence indicates that peak blood levels of the processed form of the vitamin (25-hydroxyvitamin D) are typically reached within a period of 7 to 14 days after beginning treatment.


Q: Are there any long-term effects of taking Vi-De 3 that people talk about online?

According to clinical trial documentation, the status of the long-term safety profile of the medicine is currently being investigated. The results of an ongoing open-label extension study are expected to provide further information on outcomes over extended periods.


Q: Is it common to feel tired when first starting Vi-De 3?

Fatigue is listed in official clinical trial documentation as one of the most common adverse events reported across all studies. This classification indicates that fatigue is a documented reaction reported in association with the use of the medicine.


Q: Is Vi-De 3 a generic or a brand-name medication?

Vi-De 3 is the specific brand name for this medicine. Its active ingredient is Colecalciferol, which is the official international non-proprietary name—often referred to as the generic name—for Vitamin D3.


Q: Do foods high in Vitamin K affect how Vi-De 3 works?

Regulatory documentation does not list a general food restriction related to Vitamin K and Colecalciferol itself. However, official information notes that products containing Vitamin K can interact with the blood thinner Warfarin and may make it less effective. It is important that patients review their full medication list with a healthcare provider to assess potential risks.


Q: What is the official definition of 'deficiency' that Vi-De 3 is meant to address?

Official health organizations determine Vitamin D deficiency based on specific blood test measurements. This measurement assesses the circulating levels of the processed form of the vitamin (25-hydroxyvitamin D) falling below a defined medical threshold.


Q: How long does Vi-De 3 typically stay in the body after stopping the medication?

Pharmacokinetic studies have estimated the half-life of the active circulating form of the vitamin in the body. This half-life, which measures the time for the amount in the body to be reduced by half, is estimated to be between approximately 82 and 111 days following administration.


Q: Do studies support the idea that Vi-De 3 helps with muscle pain?

Official health information confirms that severe Vitamin D deficiency is known to cause symptoms such as muscle weakness and bone pain. The goal of correcting the deficiency with Colecalciferol is to resolve these deficiency-related physical symptoms.


Q: Can Vi-De 3 be given to infants?

Yes, official regulatory documents state that Vi-De 3 is permitted for use in infants, children, and adults. It is prescribed for the prophylaxis (prevention) and treatment of Vitamin D deficiency in these populations.


Q: Are there different forms of Vi-De 3 available, like liquid or capsule?

The preparation described in the official documents is a single-ingredient product presented as an oral solution in the form of drops. This liquid format is frequently used to allow for flexible dosing, particularly in infants and young children.


Q: Why are people often asked about their diet when prescribed Vi-De 3?

Patients are often asked about their diet because Colecalciferol is a fat-soluble vitamin, and official instructions require it to be taken with a meal to ensure adequate absorption. This dietary context also relates to the patient's existing Vitamin D and mineral intake.


Q: Can Vi-De 3 be taken alongside antibiotics?

Regulatory documentation lists specific antibiotics, such as Rifampicin and Quinolones, as having the potential to interact with Colecalciferol. Because the potential for interaction exists with some drug classes, it is necessary to review the full list of medications and supplements.


Q: Is a metallic taste in the mouth listed as a possible side effect of Vi-De 3?

Official drug information lists metallic taste in the mouth as a possible early sign of excessive Vitamin D levels or overdose. This symptom is associated with hypervitaminosis D, which is a serious condition from chronic excessive intake.


Q: What are the official research themes for Vi-De 3 being studied currently?

Clinical trial summaries indicate that ongoing studies are examining the effects of Colecalciferol across several broad health themes. These research areas include bone mineral density, cardiovascular and immune function, and its potential roles in neurological and psychiatric disorders.

How should Vi-De 3 be stored and disposed of?

How to Store and Dispose of Vi-De 3 (Cholecalciferol)

Official regulatory documents define the required storage and disposal procedures for Vi-De 3 drops to ensure product stability and safety.

Required Storage Conditions

Vi-De 3 must be stored at controlled room temperature, typically defined as 20 C to 25 C (68 F to 77 F). The medicine must be kept from freezing and protected from excessive heat, moisture, and light.

Container and Handling Rules

The product must be kept in its original container, and the bottle must remain tightly closed when not in use. For safety, Vi-De 3 must be stored out of the sight and reach of children.

Disposal Instructions

Do not use the medicine past its expiration date. Unused or expired Vi-De 3 must not be disposed of in household trash or poured down a sink or toilet. Disposal must follow local environmental regulations, and guidance can be obtained from a pharmacist.

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

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