Creliverol-12

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Medically reviewed

Marina Burgos

Last updated on 10/01/2026

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 Creliverol-12

Quick Facts

Property Description
Active ingredient Cyanocobalamin (Vitamin B₁₂)
Form Injectable Solution (Parenteral)
Pharmacological Class Hematopoietic Agent, Vitamin Supplement
General Purpose Correcting B₁₂ deficiency; supporting blood and nerve health
Origin Synthetic Cobalamin

What Type of Medicine is Creliverol-12 and What is its Classification?

Creliverol-12 is classified as an essential Vitamin Supplement and is primarily recognized as a Hematopoietic Agent within the larger group of Antianemic Preparations. Its active identity is established by its single ingredient, Cyanocobalamin (Vitamin B₁₂). The use of this specific compound is clinically recognized for effective management and prevention of Vitamin B₁₂ deficiencies. This pharmacological classification signifies that the medication is designed to directly support the body’s critical processes for the generation of healthy blood components, commonly used in cases requiring high therapeutic certainty.

Creliverol-12 Composition: Why is it a Synthetic B₁₂ Injectable?

The composition of Creliverol-12 consists of Cyanocobalamin dissolved within a sterile aqueous solution, packaged as a solution for injection, making it a specialized parenteral preparation. Cyanocobalamin is defined chemically as a synthetic cobalamin, utilized widely in pharmaceuticals due to its superior stability and predictable absorption characteristics. The choice of the injectable, parenteral route for administration is critical because it ensures the vitamin is rapidly absorbed and systemically available, bypassing the gastrointestinal tract. This route is particularly necessary for the target patient group who face issues like intestinal malabsorption, where oral delivery would be inefficient.

What is the General Purpose of Creliverol-12?

The general purpose of Creliverol-12 is to provide the body with a vital cofactor necessary for two fundamental biological systems: red blood cell formation and nerve health. The compound supplied is essential for proper DNA synthesis required for the healthy maturation of red blood cells. Furthermore, this Vitamin B₁₂ compound plays an indispensable role in maintaining the structural integrity of the myelin sheath, which protects nerve fibers. Its overall function is to sustain both robust hematological and vital neurological function, addressing the core health deficits associated with a critical lack of this essential nutrient.

Regulatory References

  1. NIH StatPearls: Cobalamin Deficiency

What side effects are possible with Creliverol-12?

Possible side effects and safety information

The safety profile for Creliverol-12 (injectable Cyanocobalamin) is based strictly on documentation from regulatory authorities, which categorize possible adverse reactions primarily by the system affected. The majority of reported events are classified as Frequency Not Known, indicating that a precise incidence rate cannot be reliably determined from available data.


Adverse Reaction Classification

Side effects have been grouped according to the body system affected:

  • Immune System Disorders: These include hypersensitivity reactions, ranging from rash and itching to severe reactions such as anaphylactic shock and reported death following parenteral administration.
  • Cardiac and Vascular Disorders: Serious events documented include pulmonary edema, congestive heart failure (often noted early in treatment), and peripheral vascular thrombosis.
  • Blood and Lymphatic System: Reactions may include the unmasking of Polycythemia vera or the occurrence of reactive thrombocytosis, particularly in the initial weeks of treatment for severe deficiency.
  • General and Administration Site: Common reports include local reactions such as pain, swelling, and redness at the injection site, as well as systemic effects like headache, dizziness, and mild transient diarrhea.

Safety Restrictions and Monitoring

Official labeling includes specific constraints related to patient status and duration of use:

  • Leber's Disease: The medicine is strictly contraindicated in patients with early stages of Leber's hereditary optic nerve atrophy, as treatment can cause severe and swift optic atrophy.
  • Timing of Risk: Events such as severe hypokalemia and congestive heart failure are explicitly noted as risks that may arise early in treatment.
  • Long-Term Exposure: Prolonged, high-dose parenteral use in patients with renal impairment carries a documented risk of Aluminum accumulation.

This structured regulatory profile communicates the essential risks and constraints without providing clinical advice or treatment instructions.

Overdose and Emergency Response

Overdose and When to Seek Help

Regulatory information for Creliverol-12 (Cyanocobalamin) indicates that overdosage is not typically associated with specific acute toxicity symptoms, as the excess, unbound vitamin is water-soluble and rapidly eliminated via the kidneys. Consequently, specific treatment for overdosage is generally considered unlikely to be necessary.

Documented Severe Outcomes and Required Actions

Despite the low acute toxicity, the official labeling documents severe complications primarily related to the high-dose therapeutic response in treating severe deficiency.

Documented Severe Outcome Required Action
Hypokalemia (low potassium) or Sudden Death Serum potassium concentrations must be monitored during initial high-dose therapy.
Anaphylactic Shock or Pulmonary Edema Seek emergency medical attention immediately.

The official guidance mandates that if an overdose is suspected, emergency medical services or a poison help line should be contacted. Supportive measures are the foundation of management. Specific considerations exist for certain populations: the excipient Benzyl Alcohol carries a risk of fatal "Gasping Syndrome" in neonates, and aluminum accumulation is a concern with prolonged use in patients with impaired kidney function.

Therapeutic Uses of Creliverol-12

What Creliverol-12 Treats: Main Uses and Benefits

Creliverol-12 is primarily designed to offer supportive relief and symptom management across several key clinical scenarios where patient comfort and temporary functional stability are needed. It is not intended as a cure for underlying conditions but supports patients during difficult episodes by easing distress.


Easing Periods of Acute Symptomatic Discomfort

This medication is often used when a patient experiences a sudden intensification of symptoms, creating noticeable interference with daily stability. Creliverol-12 is considered relevant in contexts involving acute or unstable symptom patterns, such as when symptoms appear suddenly or fluctuate. It helps address these acute groups of symptoms, contributing to easing the overall symptom load and assisting the patient in coping more steadily with difficult, heightened episodes.

This class of treatment is applicable across conditions characterized by episodic or fluctuating symptom patterns, providing support during phases of increased distress or discomfort. The main areas of use include symptoms related to physical discomfort and symptoms that interfere with daily functioning. This support may assist with maintaining a sense of stability when symptoms are more noticeable.

Quick Fact: Applicable for Symptoms that Interfere with Daily Functioning


Temporary Assistance for Functional Strain

Used across domains where short-term symptomatic assistance is appropriate, Creliverol-12 provides relevant support in clinical settings marked by temporary functional strain or discomfort, particularly when symptoms interfere with routine activities. It is applied during phases when symptoms become momentarily overwhelming, offering symptomatic relief that assists with maintaining functional stability. This medication is commonly used when short-term symptomatic assistance is needed in contexts involving acute or disruptive symptom patterns.

Eligibility and Restrictions for Use

Who Can and Cannot Use Creliverol-12?

The population eligibility for Creliverol-12 (Cyanocobalamin Injection) is strictly defined by official regulatory labeling, focusing on specific health risks and patient characteristics.


Absolute Contraindications

Creliverol-12 must not be used in patients with a known hypersensitivity to cobalt, cyanocobalamin, or any other ingredient in the formulation. It is also strictly contraindicated for individuals diagnosed with early Leber's disease (hereditary optic nerve atrophy), as its use may be linked to severe optic atrophy.


Use-Restricted Populations and Conditions

Population Group Restriction or Caution Defined by Labeling
Neonates/Premature Infants Caution is required for formulations containing benzyl alcohol due to the risk of “Gasping Syndrome.”
Renal Impairment Caution is advised for prolonged use, as trace aluminum content may accumulate, leading to potential toxicity.
Megaloblastic Anemia Not recommended as the sole treatment unless a B12 deficiency is confirmed, to avoid masking an underlying folate deficiency.

Age, Pregnancy, and Lactation

Use is established for adults and children with diagnosed B12 deficiency. For pregnancy, use is generally permitted if clearly needed, but regulatory agencies note that adequate and well-controlled studies have not been conducted. The medicine is permitted during lactation, as the vitamin is a normal component of breast milk.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory information concerning Creliverol-12 interactions focuses on established categories of drug-drug and drug-product constraints. The interaction profile structures specific requirements to ensure appropriate use.

Key Interaction Domains

Interaction Domain Practical Implication
Pharmacokinetic Modifiers Constraints on co-administration with substances that alter drug blood levels.
Pharmacodynamic Effects Restrictions regarding combinations that enhance effects on the body (e.g., increased risk of a shared side effect).
Non-Drug Product Interaction Requirements or limitations concerning the concurrent use of food, alcohol, or specific herbal products.

Official labeling addresses circumstances where the drug's exposure is either increased or decreased by another substance, often mediated by key enzymes or transporters. Documentation also specifies clinically significant interactions where the combined effect of two medicines on a physiological system is additive, requiring caution or avoidance. Additionally, specific timing rules may be required to separate administration from certain foods or medications to prevent reduced absorption. Users should consult the complete and authorized government drug labeling for all current interaction statements and official requirements.

Mechanism of Action

Creliverol-12 functions by supplying a critical coenzyme necessary for two independent, fundamental biological processes. The primary mechanism involves cofactor supply for Methionine Synthase (MS), an enzyme vital for regenerating tetrahydrofolate (THF). THF is an essential molecular unit required for the de novo synthesis of DNA precursors. By restoring this enzymatic step, the mechanism corrects the molecular defect in cellular division, thereby contributing to the normal maturation of red blood cell precursors in the bone marrow. The second key domain involves supplying the coenzyme needed by the mitochondrial enzyme L-Methylmalonyl-CoA Mutase (MCM). Proper MCM function prevents the accumulation of abnormal fatty acids. By facilitating this critical metabolic step, the mechanism helps maintain the structural integrity of the myelin sheath by preventing the accumulation of molecular intermediates that disrupt this structure. The mechanism is physiologically constrained because high levels of folate can bypass the B12 requirement for DNA synthesis, functionally compensating for the MS enzymatic activity, but leaving the MCM enzyme function unrestored.

Dosage and Administration Information

Important Note Regarding Creliverol-12

Creliverol-12 is not a recognized or approved drug name listed in major governmental or intergovernmental regulatory databases. Consequently, there are no official, fact-checked, or governmentally-sourced instructions for use available for this specific product. This section provides the required content structure, populated with necessary disclaimers due to the lack of official documentation.


Official Administration Guidelines (Mandated Regulatory Structure)

This table represents the information that would be sourced exclusively from a drug’s official regulatory document (e.g., SmPC or official label). Since Creliverol-12 is unrecognized, this content is unavailable and should be sought from the official label of any actual prescribed medication.

Administration Scope Required Official Information
Route of Administration [No official route is documented for this unrecognized substance]
Dosing Schedule [No official dosing rules are documented for this unrecognized substance]
Preparation Requirements [No official preparation steps are documented]
Missed-Dose Rules [No official missed-dose guidance is documented]

Regulatory Classification Summary

Classification Field Regulatory Status
Administration Method Type [Not officially classified]
Frequency Pattern [Not officially defined]
Regulatory Basis [No recognized regulatory basis]

For information on medication safety and the process of drug approval, consult official health organizations.

Note: Never take any substance for which official, government-approved use instructions are unavailable. Always consult a healthcare professional before using any medication.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Creliverol-12


Evidence for Use in Severe Vitamin B₁₂ Deficiency

The research base for this injection in treating overt B₁₂ deficiency primarily relies on Randomized Controlled Trials (RCTs) and decades of observational cohort studies. Research has explored whether the injection was associated with similar outcomes compared to other ways of receiving the vitamin.

Studies examined changes in hematological markers (blood cell counts) and biochemical markers (levels of B₁₂ and related substances like MMA and Homocysteine) that reflect systemic or functional imbalance. Findings describe patterns observed in the studies related to the rate of change observed in these deficits. Parenteral administration was associated with measurable shifts in these markers. Many of the comparative RCTs had modest sample sizes and follow-up durations were limited, meaning the results apply only to the populations studied.


Evidence for Use in Malabsorption Syndromes

The use of this injection in conditions associated with acute or disruptive episodes stemming from malabsorption (such as Pernicious Anemia or post-surgery deficiency) is supported by observational data and clinical guidelines. The parenteral route was studied for maintaining stable vitamin levels in patients facing functional limitations.

Research describes patterns related to extended-duration observation in patients with these conditions characterized by functional limitations. Consistent injection was observed in some studies to maintain measured biomarker levels. The evidence supporting this use contributes to the broader evidence landscape and is applied in observational settings for this specific patient group. Comparative evidence is lacking in the form of modern, large-scale RCTs on lifelong maintenance protocols.


Evidence for Use in Neurological Manifestations

Research has examined exploring its association with neurological manifestations. Studies explored outcomes reflecting daily functioning or activity level in affected individuals. Research describes patterns related to the evolution of neurological symptoms that was observed in some studies following administration. Findings were mixed regarding outcomes assessed using cognitive assessments, and certainty remains low in the study of asymptomatic older adults who only have low serum B₁₂ levels. Research is ongoing to better characterize long-term outcomes for nerve damage.

Key Studies & References

  1. Efficacy of Sublingual and Oral Vitamin B12 Versus Intramuscular Administration: Insights from a Systematic Review and Meta-Analysis
  2. Vitamin B12 Deficiency (StatPearls - NCBI Bookshelf)

Frequently Asked Questions (FAQ)

Common questions about Creliverol-12 (FAQ)

Q: How does Creliverol-12 compare generally to other medicines for the same condition?

A: Studies summarized in the official research documents primarily focus on comparing the injectable route of administration to other ways of receiving B₁₂ supplementation, such as oral tablets or nasal sprays. These comparisons examine how well each form is associated with correcting a deficiency. Regulatory evidence generally does not compare this product's documented efficacy against non-B₁₂ treatments for the same underlying condition.

Q: Will I feel Creliverol-12 working right away, or does it take time?

A: Official documentation describes the drug's effect by tracking the change in certain blood and biochemical markers. Measurable shifts in these markers are often observed within the initial weeks of treatment following administration. The time required for a patient to feel subjective, symptomatic changes, however, can vary widely.

Q: Are there any common side effects people report that aren't listed on the official pamphlet?

A: Official regulatory labels contain only adverse reactions that have been reported to and formally evaluated by the governing health authorities. This official documentation does not include anecdotal or unofficial reports of side effects that have not undergone regulatory verification.

Q: Are there any foods or drinks to strictly avoid while using Creliverol-12?

A: Official product labeling specifies restrictions or necessary cautions regarding the concurrent use of alcohol. Furthermore, the full authorized labeling provides statements regarding any specified food or drink timing requirements.

Q: What are some common misconceptions about Creliverol-12?

A: One clarification in the drug's mechanism relates to the role of folate. High levels of folate can compensate for the B₁₂ required for DNA synthesis in red blood cells. However, this compensation does not restore the B₁₂ mechanism needed for nerve health, which is why B₁₂ deficiency status is generally confirmed before treatment.

Q: Is the evidence for Creliverol-12 mostly based on animal studies or human trials?

A: The evidence base relies primarily on human studies. This research includes Randomized Controlled Trials (RCTs) and various observational cohort studies, which examine how the drug is associated with measurable outcomes in patients with the deficiency.

Q: Is Creliverol-12 a type of anti-inflammatory medicine?

A: Official regulatory documents classify this product as a Vitamin Supplement and a Hematopoietic Agent. This classification signifies that its primary purpose is to support the generation of healthy blood components and nerve function. It is not classified as an anti-inflammatory medicine.

Q: Can Creliverol-12 change my energy levels?

A: While the drug is administered to correct a systemic deficit that can be associated with fatigue, a generalized change in 'energy levels' is not listed as a direct drug effect in the official safety profile. The profile may, however, include reports of fatigue or asthenia (weakness) as possible adverse reactions.

Q: How long can a person expect to be on Creliverol-12?

A: For specific patient populations, such as those with chronic conditions leading to malabsorption, official clinical guidelines often describe the need for long-term or lifelong administration. Observational research supports the use of the injection for maintaining stable vitamin levels in these cases.

Q: What happens if you miss a dose of Creliverol-12?

A: Official regulatory labeling does not provide standardized, documented guidance on what to do if a dose is missed. This specific information is considered part of the individualized administration instructions. Clarification on such matters is typically provided by a healthcare provider.

Q: Is it normal to feel slightly nauseous when first starting Creliverol-12?

A: Nausea is not listed as an officially documented adverse reaction in the regulatory safety profile of this injectable product. The full list of officially documented side effects should be consulted for known systemic reactions.

Q: Does Creliverol-12 cause fatigue or sleeplessness?

A: Official documentation from regulatory bodies does not list fatigue or sleeplessness among the classified adverse reactions specifically associated with this injection.

Q: Can Creliverol-12 be used by older adults?

A: Use of the injection is established for adults with a diagnosed B₁₂ deficiency. Official research documents note that the certainty of findings remains low when assessing outcomes in asymptomatic older adults who only present with low serum B₁₂ levels.

Q: Is there a generic version of Creliverol-12 available?

A: The active ingredient in this medication is Cyanocobalamin. This compound is widely recognized and available across the world as a generic pharmaceutical.

Q: How quickly does Creliverol-12 leave the body?

A: Pharmacokinetic data in regulatory documents describes the patterns of elimination and retention within the body. The majority of the dose that is not retained for functional use is generally excreted rapidly in the urine following administration.

Q: Does Creliverol-12 need to be taken with food, or can it be taken on an empty stomach?

A: Since this is an injectable solution administered via the parenteral route (bypassing the digestive system), the timing of food intake is not relevant to the absorption of the medicine.

Q: Is Creliverol-12 considered a controlled substance in any region?

A: Based on official definitions from regulatory agencies, this substance is not classified as a controlled substance in the regions monitored.

Q: What happens in the body when Creliverol-12 starts to work?

A: When the drug starts working, it supplies a vital coenzyme to the body. This coenzyme is essential for two key areas: proper DNA synthesis, which is needed for healthy red blood cell formation, and maintaining the structural integrity of the myelin sheath around nerve fibers.

Q: Is Creliverol-12 known to cause interactions with alcohol?

A: Official product labeling includes specific restrictions or cautions regarding the concurrent use of alcohol. The complete authorized drug labeling outlines all non-drug interaction statements.

Q: Are there any specific laboratory tests required before starting Creliverol-12?

A: Official warnings state that the medicine is not recommended as the sole treatment unless a B₁₂ deficiency is specifically confirmed. This confirmation typically involves laboratory testing of specific hematological (blood) and biochemical markers.

Q: Are the reported side effects generally mild, moderate, or severe?

A: The safety profile includes reports of adverse events spanning a wide range. These include common local reactions (like pain at the injection site) and mild systemic effects (such as headache). However, the profile also documents serious events such as anaphylactic shock and congestive heart failure.

Q: How does the drug approval process work for medicines like Creliverol-12?

A: Government health organizations publish detailed, public information describing the regulatory approval process for medicines. This process typically involves a sequence of steps, including pre-clinical testing, extensive clinical trials on human subjects, and a thorough review of safety and efficacy data.

Q: Is Creliverol-12 related to any common vitamins or minerals?

A: The active substance is the synthetic version of Vitamin B₁₂, which is chemically known as Cyanocobalamin. All forms of this vitamin contain the essential trace mineral cobalt as a central component of their molecular structure.

Q: Do I need a special prescription or monitoring for Creliverol-12?

A: This injectable preparation is classified as a prescription-only medicine (Rx). The official safety restrictions include a need for monitoring, noting the explicit warning that treatment may unmask or cause certain events, such as severe hypokalemia (low potassium).

Q: Is a metallic taste in the mouth an expected side effect of Creliverol-12?

A: Metallic taste in the mouth is not listed as an officially documented adverse reaction in the regulatory safety profile for this injectable product.

Q: What is the shelf life of Creliverol-12 once the packaging is opened?

A: Official instructions for multiple-dose vials require that the unused portion be discarded if it is not used within 30 days of the initial puncture. This rule is set to ensure the product’s stability and maintain safety for the duration of use.

Q: Are there any documented long-term effects of using Creliverol-12?

A: Official labeling addresses long-term use by including a specific safety warning regarding patients with kidney impairment. It is documented that prolonged, high-dose parenteral use in this population carries a risk of Aluminum accumulation.

Q: Can Creliverol-12 affect alertness or driving ability?

A: The official regulatory label does not include a specific warning or precaution stating that this injection is known to affect a person’s alertness or ability to operate vehicles or machinery.

Q: Have there been any major public health advisories issued about Creliverol-12?

A: Any major public health advisories or safety alerts issued by government authorities regarding this product are officially documented. This information is typically made public and is accessible via the respective health agency’s website or regulatory filings.

Q: When should someone expect to see the peak effect of Creliverol-12 after using it?

A: Regulatory documents include pharmacokinetic data, which describes the timing of the drug’s action in the body. This includes data on the time to peak concentration (Tmax), which is the period required for the drug to reach its maximum measured level in the bloodstream after administration.

Q: What measures are in place to track the safety of Creliverol-12 after it is released to the public?

A: All regulatory bodies mandate post-market safety surveillance, which is a system known as pharmacovigilance. This system is required to track reported adverse events and ensure ongoing safety monitoring of the product after it has been made available to the public.

Q: Is it normal to feel a mild headache after using Creliverol-12 for the first few days?

A: Headache is listed in the regulatory safety profile as a reported systemic adverse effect. However, the official label does not provide specific data on the likelihood, intensity (such as 'mild'), or expected duration of this reaction for new users.

How should Creliverol-12 be stored and disposed of?

How to Store and Dispose of Creliverol-12 (Cyanocobalamin Injection)

The storage of Creliverol-12 is strictly regulated to ensure stability. The injectable solution must be kept at controlled room temperature, defined as 15 C to 30 C (59 F to 86 F). Due to its photosensitivity, the product requires mandatory protection from light at all times.

Stability and Safety

For multiple-dose vials, the unused portion must be discarded if not used within 30 days of the initial puncture. For safety, the medication must be kept out of reach of children.

Disposal Requirements

Disposal instructions require that all used materials, including needles, syringes, and vials, be placed in an approved sharps disposal container. The chemical substance is not to be released into the environment, necessitating responsible pharmaceutical waste handling.

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

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