Pediavit D

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Pediavit D

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.

Overview of Pediavit D

This foundational section defines the medicine Pediavit D by its composition, pharmacological classification, and general function, tailored for the infant and pediatric patient group.

Property Description
Active ingredient Colecalciferol (Vitamin D3)
Form Oral Solution (Drops)
Pharmacological class Vitamin D Analog / Nutritional Supplement
General purpose Supports mineral balance and skeletal integrity
Origin Naturally occurring form (D3), synthetically manufactured

What Type of Medicine is Pediavit D?

Pediavit D is an oral liquid medicine categorized as a Nutritional Supplement and a Vitamin D Analog. Its sole active component is Colecalciferol, commonly known as Vitamin D3. Colecalciferol is a vital, fat-soluble vitamin and a chemical prohormone, meaning the body must metabolize it into its active hormonal form before it can execute its function. The product is clinically recognized for providing essential Vitamin D supplementation, which is a common public health recommendation for infants and young children, particularly those who are breastfed.


Composition, Form, and Origin

The Pediavit D brand is typically supplied as an Oral Solution in drops, which is a liquid formulation specifically designed for ease of oral administration to the target patient group. The single active ingredient, Colecalciferol, is often incorporated into an aqueous-based vehicle, facilitating the delivery of the fat-soluble nutrient. Colecalciferol (D3) is the naturally occurring form of Vitamin D synthesized by human skin upon sun exposure, distinguishing it from Ergocalciferol (Vitamin D2), which is sourced from plant and fungal material.


What is the General Purpose of Colecalciferol?

The core general purpose of Colecalciferol is to facilitate the maintenance of the body's optimal mineral balance. This compound’s fundamental action is to significantly enhance the intestinal absorption of the essential minerals, calcium and phosphate, from the diet. By ensuring this critical mineral uptake and utilization, Pediavit D supports the structural integrity of the skeletal system, promoting proper bone development in growing individuals and assisting in long-term bone maintenance.

What side effects are possible with Pediavit D?

Possible Side Effects and Safety Information

The most serious safety concern associated with Pediavit D (cholecalciferol) is hypercalcaemia (abnormally high blood calcium levels), which typically results from prolonged ingestion of excessive doses. High calcium levels can lead to severe adverse reactions impacting key organ systems.

Serious and Clinically Significant Adverse Reactions

High concentrations of blood calcium may cause systemic toxicity that can result in damage to the kidneys (nephrocalcinosis, renal failure) and the cardiovascular system (cardiac arrhythmias, vascular calcification). Growth arrest is a known serious effect in children after extended high-dose exposure.

Adverse Reaction Categories

Adverse reactions that are not immediately life-threatening but are officially documented are classified by frequency or by the system-organ class they affect. Rare reactions documented include certain skin and subcutaneous tissue disorders such as pruritus (itching), rash, and urticaria (hives). Gastrointestinal symptoms like nausea, vomiting, and constipation are also reported, primarily linked to the effects of hypercalcaemia.

Classification Examples of Documented Reactions
Rare (Skin & Subcutaneous Tissue Disorders) Pruritus, Rash, Urticaria
Not Known (Frequency) Choking, Dry skin, Nail disorder

Population-Specific Safety and Limitations

Infants and children are generally considered more susceptible to toxic effects than adults, meaning specific caution and lower maximum daily intake levels are established for this population. Official documents recommend use with caution in patients with pre-existing conditions affecting the heart (cardiac function impairment) or kidneys (renal impairment), or those with arteriosclerosis. Concomitant use with other medications, such as digoxin or certain diuretics, may require specific monitoring of serum calcium levels to prevent heightened risk of hypercalcaemia.

Overdose and Emergency Response

Overdose and when to seek help

Official regulatory information for Pediavit D (Colecalciferol) overdose specifies that toxicity is primarily a result of excessive or chronic administration, leading to a state of hypercalcemia (elevated calcium levels).

Documented Overdose Manifestations

The documented clinical presentation is characterized by systemic, gastrointestinal, and fluid-related symptoms. These may include anorexia, nausea, vomiting, weakness, fatigue, headache, excessive thirst (polydipsia), and frequent, voluminous urination (polyuria).

Severe Outcomes and Emergency Action

Overdose is classified as potentially severe and may result in life-threatening complications. The most serious outcomes documented in labeling involve the renal system, including nephrocalcinosis and progressive renal failure, as well as the cardiovascular system, which may manifest as hypertension or cardiac arrhythmias.

Immediate medical attention must be sought upon suspicion of overdose or if any signs of hypercalcemia are observed. Urgent contact with emergency services is mandated for severe presentations, such as signs of cardiac or acute renal compromise. The official regulatory strategy confirms that no specific antidote is known; management is purely supportive, including immediate discontinuation of Colecalciferol and monitoring of serum calcium and renal function.

Population Considerations

Infants and children are noted to be highly susceptible to the toxic effects of the medicine. Increased severity is also documented for patients with pre-existing cardiac disease or renal impairment.

Therapeutic Uses of Pediavit D

Pediavit D, which contains Vitamin D (cholecalciferol), is applied across domains where additional symptomatic support is needed. Vitamin D is commonly used to help with symptoms related to systemic imbalance, including those symptoms related to physical discomfort.

This makes the supplement relevant for easing symptoms specifically tied to deficiency. It is considered relevant in conditions characterized by periods of heightened symptoms, such as those that may present with acute or disruptive episodes tied to deficiency. Supplementation provides support that helps ease the overall symptom burden and contributes to improved comfort during periods of heightened symptoms.

Quick Fact: Relevant for Symptomatic Support

By supporting bone development, it helps maintain a sense of stability when symptoms are more noticeable and supports general well-being during symptomatic phases. It is relevant when supportive symptom management is appropriate, especially in clinical scenarios where patients experience limited sun exposure or specific dietary needs.

“It supports the patient during difficult episodes by easing distress.”

Eligibility and Restrictions for Use

Who Can and Cannot Use Pediavit D?

The official eligibility for Pediavit D (Colecalciferol oral solution) is strictly defined by regulatory authorities based on a patient's age and clinical conditions that affect calcium and Vitamin D balance. This section reflects mandatory, label-based information.


Approved Target Groups

The medicine is primarily approved for the pediatric population, including infants, children, and adolescents, to prevent or treat Vitamin D deficiency. This population is the main target for the oral drop formulation.


Absolute Restrictions (Contraindications)

Use of Pediavit D is absolutely prohibited (contraindicated) for individuals with the following conditions:

  • Hypervitaminosis D (existing Vitamin D toxicity).
  • Hypercalcaemia or Hypercalciuria (high levels of calcium in blood or urine).
  • Hypersensitivity to the active substance (Colecalciferol) or excipients.
  • Conditions like Sarcoidosis or Nephrolithiasis (kidney stones) that significantly increase the risk of hypercalcaemia.

Restricted or Conditional Use

Severe Renal Impairment is an important restriction, as it may interfere with Vitamin D metabolism and safe use. In pregnancy and lactation, use is generally permitted at recommended daily intakes, but high doses are restricted to mitigate risk to the fetus or nursing infant, as Colecalciferol passes into breast milk.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Pediavit D (Colecalciferol) interacts with certain substances by altering its absorption, breakdown, or mineral balance effects, as documented in authoritative government regulatory labeling.

1. Pharmacokinetic Interactions (Altered Exposure)

These interactions affect the body’s exposure to Colecalciferol:

  • Reduced Absorption: Bile Acid Sequestrants (e.g., Cholestyramine, Colesevelam) and Mineral Oil are documented to interfere with the absorption of the fat-soluble Colecalciferol in the gut. This results in reduced systemic levels. To manage this effect, regulatory documentation mandates a timing separation requirement where Pediavit D must be administered separately (e.g., at least four hours prior) from these agents.
  • Increased Catabolism: Certain enzyme-inducing Anticonvulsants (e.g., Phenytoin, Fosphenytoin) are documented to increase the catabolism (breakdown) of Colecalciferol in the liver. This effect reduces the overall systemic concentration of the vitamin and is cited as a condition that may require consideration of additional Vitamin D supplementation.

2. Pharmacodynamic Interactions (Additive Effects)

These interactions produce an additive effect on the body's mineral system:

  • Additive Hypercalcemia Risk: Co-administration with Thiazide Diuretics is documented to increase the risk of hypercalcemia (abnormally high calcium levels) due to the drugs' combined effect on calcium retention. For the same reason, the combined use of Pediavit D with other high-dose prescription Vitamin D Analogs (e.g., Calcitriol) is a restricted combination in official labeling.

Population-Specific Note: Hepatic impairment (liver dysfunction) and renal dysfunction (kidney issues) are noted in regulatory information as potentially altering the metabolic activation and clearance of Colecalciferol, which can impact the outcome of co-administered drugs.

Mechanism of Action

Pediavit D (Colecalciferol) functions as an inactive prohormone, requiring a two-step enzymatic activation sequence in the body's liver and kidneys before it can exert its effect. The activation process is physiologically dependent on the functional capacity of these organs to complete metabolic conversion.

The fully active molecule, Calcitriol (1,25( OH)2 D3), acts as an agonist by binding to and activating the intracellular Vitamin D Receptor (VDR). This VDR activation initiates a signaling sequence characteristic of steroid hormone signaling, targeting gene expression in the cell nucleus.

Activation of the VDR leads to gene transcription modulation, causing the cell to synthesize mineral transport proteins like TRPV6 and Calbindin. The synthesis of these proteins is the basis for the subsequent facilitation of active absorption of dietary calcium and phosphate in the small intestine, and their conservation in the kidneys. By coordinating this influx and efflux, the molecule modulates the processes contributing to systemic mineral homeostasis and skeletal structure.

Dosage and Administration Information

Pediavit D is an Oral Solution (drops) containing Colecalciferol (Vitamin D3), and its usage is defined by the patient’s age and the clinical goal: prevention or treatment of deficiency. The sole approved route of administration for this liquid formulation is oral.


Standard Administration Patterns

The general usage principle involves daily dosing for continuous supplementation, and administration is flexible regarding food intake.

Dosage and Frequency

Official dosing is differentiated based on the treatment goal, requiring strict adherence to the appropriate regimen:

Usage Goal Age Group Standard Daily Dose
Prevention (Maintenance) Infants (0–12 months) 400 IU (10 mcg)
Prevention (Maintenance) Children (1–18 years) 600 IU (15 mcg)
Treatment (Curative Phase) Infants & Children Typically 2,000 IU (50 mcg)

Treatment doses are administered once daily for a finite course (e.g., six to eight weeks) before switching to the lower, long-term maintenance dose. High-dose intermittent regimens (e.g., weekly) are also recognized for specific treatment protocols.


Contextual Use Instructions

The liquid nature of the medicine facilitates practical administration to infants and children.

  • Measurement: The dose must be measured using the product's calibrated dropper or oral syringe to ensure accuracy, as the IU-per-volume can vary by product.
  • Infant Administration: For infants, the drops can be administered by placing them directly onto the mother’s nipple, a pacifier, or a bottle nipple, allowing the full dose to be sucked. Alternatively, the liquid may be mixed with a small amount of food, formula, or juice.
  • Missed Dose: If a daily dose is forgotten, the instruction is to skip the missed dose and resume the regular daily schedule without taking a double quantity to compensate. The administration protocol often requires co-administration of calcium supplements during the treatment phase for optimal effect.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Pediavit D

Evidence for Use in Preventing Deficiency and Rickets

Research has examined Colecalciferol (Vitamin D3) as a nutritional supplement, primarily through Randomized Controlled Trials (RCTs) and comprehensive Systematic Reviews of these trials. These studies were conducted to explore its role in addressing common nutritional problems, specifically Vitamin D deficiency and the bone disease known as nutritional rickets, in infants and young children. The research typically focused on study populations such as healthy, breastfed infants and toddlers.

Studies consistently monitored biomarker shifts, with the key focus being changes in the level of serum 25-hydroxyvitamin D (25(OH)D). Findings describe patterns observed in these studies where Colecalciferol supplementation was associated with patterns measured during the study period. Some trials also described that children in high-risk groups who received the supplement had studies that monitored the occurrence of nutritional rickets diagnosis in the supplemented group.

Evidence highlights what is known—and what is still uncertain. For instance, findings were mixed when researchers monitored bone mineral density (BMD) as an outcome, especially in children whose Vitamin D levels were not deficient at the start of the trial. These studies help show what has been observed so far, but the clinical significance of these bone density patterns appears to be uncertain for healthy children.


Evidence for Use in Treating Established Deficiency

Colecalciferol was studied for its use in managing more severe cases, specifically when a child has an established diagnosis of Vitamin D deficiency or active nutritional rickets. This area of evidence draws from controlled trials and also from foundational research that is frequently referenced in major official clinical guidelines on managing the condition.

The research examined populations of infants and children who were already presenting with confirmed nutritional rickets or severe deficiency. The studies explored outcomes related to biochemical normalization. Research examined measured changes in low blood calcium (hypocalcemia) and monitored serum 25(OH)D levels toward a more typical range. Research also describes patterns related to changes observed in rickets on X-ray images, as well as the monitoring of physical discomfort symptoms. This body of evidence contributes to the broader evidence landscape related to the acute state of the deficiency.


The Study Landscape: Key Limitations and Research Gaps

Research describes patterns related to the correction of Vitamin D levels, but the overall research includes certain limitations. Sample sizes were modest in some of the smaller randomized trials conducted in infants. Furthermore, follow-up durations were limited, and there is limited information for long-term outcomes extending into later childhood and adolescence. Findings were sometimes mixed or inconsistent when measuring non-biomarker outcomes, such as bone density, in children who were not initially deficient. The evidence highlights what is known—that is, the patterns observed in the studies—but also what is still uncertain, requiring more extensive, long-duration research to better examine the long-term effects beyond correcting the deficiency itself.

Frequently Asked Questions (FAQ)

Common questions about Pediavit D (FAQ)


Q: Why is Pediavit D often recommended for babies who are breastfed?

Official guidance from public health organizations describes the recommendation for Vitamin D supplementation for breastfed infants. This is because, while breastfeeding is generally supported, human breast milk typically provides insufficient levels of Vitamin D to meet the baby’s nutritional requirements necessary for mineral homeostasis. Supplementation is described as a measure to support adequate daily intake.

Q: What types of safety classifications or warnings are associated with Pediavit D?

Regulatory documents describe contraindications, which are conditions where the medicine should not be used. These include having abnormally high levels of calcium or very high levels of Vitamin D in the blood (hypercalcemia or hypervitaminosis D). Official warnings also apply to individuals with conditions such as severe kidney stones.

Q: What official information is available about Pediavit D use for individuals with pre-existing kidney conditions?

Official product information includes warnings about use in individuals with kidney damage or disease. The warning exists because the body relies on the kidneys for the final step of converting the administered Vitamin D into its fully active form, and kidney issues may therefore affect this metabolic process.

Q: What are the reported interactions between Pediavit D and high-dose calcium supplements?

Regulatory instructions note that adequate dietary calcium is necessary for Vitamin D treatment to be effective. However, combining Pediavit D with other high-dose Vitamin D analogs or certain drugs that cause the body to retain calcium is noted as potentially increasing the risk of hypercalcemia, which is abnormally high calcium levels in the blood.

Q: Why do some Pediavit D bottles utilize a specific dropper or dispensing mechanism?

Official administration guidelines indicate that the use of the calibrated dropper or oral syringe supplied with the product is necessary. This dispensing mechanism is required because the concentration of the active ingredient (Colecalciferol) means that high measurement accuracy is needed to ensure the appropriate dose is administered.

Q: What are the most commonly reported concerns about side effects of Pediavit D?

Adverse effects reported in regulatory documents are generally linked to signs of Vitamin D overdose leading to high calcium levels (hypercalcemia). These potential effects include gastrointestinal symptoms like nausea, vomiting, loss of appetite, and constipation, as well as an increase in the need to urinate.

Q: Is Pediavit D classified as a vitamin supplement or a prescription medication by regulatory bodies?

The regulatory classification of Cholecalciferol oral solutions can vary based on the specific concentration and packaging. Depending on the product, it may be classified and marketed as either a dietary supplement or as a prescription drug. Labeling generally includes a note for individuals to confirm the classification of their specific product.

Q: Does Pediavit D need to be kept in the refrigerator or stored under specific conditions?

Official product information generally describes storage conditions for Pediavit D. These conditions often state that the product is intended to be stored at controlled room temperature, protected from direct sunlight, moisture, and excessive heat. Freezing or refrigerating the liquid solution is commonly advised against.

Q: What are the general expectations for observing the results of Pediavit D use?

The purpose of using Pediavit D is to correct or prevent Vitamin D deficiency. While regulatory documents do not specify a timeline for patient observation, they highlight that the major safety concern is over-correction. Warnings about overdose focus on symptoms like excessive thirst, frequent urination, and vomiting, which are key indicators of abnormally high calcium levels.

Q: What is the difference between Vitamin D2 and the form of D used in Pediavit D?

Pediavit D contains the active substance Cholecalciferol, which is known as Vitamin D3. This is the form of the vitamin that the human body naturally synthesizes when skin is exposed to sunlight. Official regulatory sources also refer to another common therapeutic form, Ergocalciferol, which is known as Vitamin D2.

Q: Does Pediavit D interact with general over-the-counter multivitamins?

Regulatory information describes the need for caution when Pediavit D is taken alongside general over-the-counter multivitamins or mineral supplements. This caution is noted because these products may contain additional Vitamin D or calcium, which could affect the established daily intake of the patient.

Q: Can Pediavit D still be used during the summer months when sun exposure is higher?

Supplementation guidelines often describe the use of continuous daily dosing for infants until sufficient Vitamin D intake is consistently achieved through diet. This practice is noted to support stable intake because the amount of vitamin D produced from sun exposure is highly variable, depending on factors such as location, time of day, and skin color.

Q: Are there any known interactions between Pediavit D and certain commonly used herbal supplements?

Official regulatory documents generally include a caution about combining Pediavit D with any herbal products. This caution is noted because some herbal supplements may contain components that could potentially interfere with the absorption or metabolism of the Vitamin D component.

Q: Does Pediavit D contain any common food allergens or sensitivities?

Regulatory requirements ensure that all inactive ingredients and excipients are listed on the product's labeling. Some liquid formulations may contain components like alcohol, sugar, or specific types of oils. Patients with sensitivities or allergies should be aware that the full excipient list is available for review on their specific Pediavit D product.

How should Pediavit D be stored and disposed of?

Official Storage and Disposal Instructions

Pediavit D (cholecalciferol oral solution) must be stored under specific environmental conditions to maintain stability and effectiveness, as defined by official regulatory labeling.

Storage Requirement Condition
Temperature Store at Controlled Room Temperature, between 15°C and 30°C (59°F and 86°F). Protect from freezing.
Protection Keep the container tightly closed and store away from direct light and excess moisture. Refrigeration is not required.
Child Safety Mandatory to keep the solution out of the sight and reach of children.
Disposal Unused or expired medication must be returned to a pharmacy or drug take-back program. Do not dispose of the solution by flushing it down a toilet or sink.

Some formulations have an in-use stability limit and must be discarded 60 days after the first opening.

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

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