Methyluracil

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Methyluracil

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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 Methyluracil

Property Description
Active ingredient Methyluracil (Dioxomethyltetrahydropyrimidine)
Common Forms Tablet, Ointment, Suppository
Pharmacological Class Metabolic Agent, Regenerative Stimulant
General Purpose Tissue repair and cellular recovery
Origin Synthetic compound (Pyrimidine derivative)

What Type of Drug is Methyluracil and What is its Composition?

Methyluracil is defined as a widely recognized synthetic pyrimidine derivative, a pharmaceutical substance primarily classified as a Metabolic Agent and a Regenerative Stimulant. The single active ingredient is 6-methyl-1H-pyrimidine-2,4-dione, also known as Dioxomethyltetrahydropyrimidine. This compound is synthesized to structurally mimic the core pyrimidine bases found in the human body, providing a foundation for its therapeutic profile. The compound is clinically recognized for its capacity to support the synthesis phase of cellular cycles, establishing it as a key agent in regenerative pharmacology.

Methyluracil's Role as a Regenerative Stimulant

The general purpose of Methyluracil is to actively promote and improve the efficiency of the body's internal healing mechanisms. This restorative effect is achieved through an anabolic action at the cellular level, where the substance aids in supporting the increased synthesis of essential proteins and nucleic acids necessary for new cell formation. Methyluracil is specifically noted for its ability to stimulate tissue metabolism and enhance recovery in compromised conditions. This means the substance actively helps cells to rebuild and mend damaged structures more rapidly. Furthermore, the drug acts as a leukopoietic stimulant, which helps enhance the production of white blood cells (leukocytes), vital for immune function and effective tissue repair.

Available Forms and Methods of Delivery

As an established INN, Methyluracil is incorporated into several pharmaceutical preparations to ensure flexibility in its application. The primary dosage form(s) typically include tablets, intended for oral delivery, and semi-solid forms such as ointments and gels, which are used for topical application. The drug can also be formulated into suppositories, enabling rectal administration. The availability of diverse forms ensures the regenerative and metabolic effects of the active ingredient can be targeted effectively, whether locally on the skin or systematically.

What side effects are possible with Methyluracil?

Possible Side Effects and Safety Information

The safety profile for Methyluracil details documented adverse reactions and specific regulatory restrictions for use, based on official government prescribing information. The known adverse reactions are categorized by the physiological systems affected, although standard frequency classifications (such as common or rare) are often not explicitly provided in regulatory summaries.

Documented Adverse Reactions

Adverse effects are officially grouped by the System-Organ Class (SOC) they affect:

  • Nervous System Disorders: Documented effects include headache and dizziness.
  • Skin and Subcutaneous Tissue Disorders: Allergic-type reactions may occur, encompassing hyperemia (redness), itching, skin rashes, and urticaria (hives).
  • General Disorders and Administration Site Conditions: Localized reactions, such as short-term burning or itching, may be experienced at the site of product application or insertion.

Safety Restrictions and Special Populations

Official regulatory labeling defines strict conditions under which Methyluracil should not be used, alongside constraints for certain patient groups. These limitations are critical to the drug’s overall safety profile:

  • Contraindications: The medicine is restricted from use in individuals with known hypersensitivity to the active substance, as well as those with specific severe blood disorders, including acute and chronic forms of Leukemia, Lymphogranulomatosis, and Malignant bone marrow diseases.
  • Population Constraints: Use is prohibited for children under 14 years of age and is not recommended during pregnancy or breastfeeding.

Time-Related Safety Considerations

A time-related safety note is included regarding dizziness, which may potentially affect a patient’s ability to perform tasks requiring vigilance (such as driving or operating machinery). This consideration is relevant and persists until the individual's initial reaction to the medicine has been established.

Overdose and Emergency Response

Methyluracil Overdose and when to seek help


The official regulatory documentation for Methyluracil overdose does not specify a cluster of severe clinical symptoms or signs, reflecting the compound's low acute toxicity profile. No specific life-threatening events are formally listed in the regulatory overdose section, and no particular physiological systems are noted as being severely affected by an acute excessive intake. Furthermore, official labeling does not explicitly document any specific population-based considerations regarding increased overdose severity for pediatric, elderly, or renally impaired patients.

Despite the absence of specific detailed clinical findings, regulatory authorities mandate explicit actions in the event of a suspected overdose. Individuals must seek immediate medical attention and urgently contact a poison control center following any known or suspected excessive ingestion or intake of large or unknown quantities. This immediate response is required regardless of the presence or severity of observable symptoms. The officially described strategy for overdose management is limited entirely to symptomatic and supportive treatment. Clinical observation may be required to maintain vital functions. No specific pharmacological antidote is known or documented in the official regulatory information for Methyluracil. The overall regulatory profile is thus structured around mandatory emergency intervention and non-specific supportive care.

Therapeutic Uses of Methyluracil

Main Uses of Methyluracil

Methyluracil is a pharmacological agent primarily recognized for its ability to stimulate cellular regeneration and promote the healing of damaged tissues. It belongs to a group of medications that influence metabolic processes, specifically by enhancing the synthesis of nucleic acids and accelerating protein production within cells.

Tissue Repair and Wound Healing

The primary application of Methyluracil is in the treatment of various types of skin and mucosal injuries. It is commonly used to support the recovery of:

  • Sluggishly healing wounds: It helps stimulate the growth of new tissue in wounds that are slow to close.
  • Burns: It is utilized to accelerate the epithelialization process in thermal or chemical burns.
  • Bone fractures: By stimulating metabolic processes, it may assist in the formation of bone callus during the healing of breaks.
  • Ulcerative conditions: It is frequently applied in the management of trophic ulcers and pressure sores.

Gastrointestinal and Internal Applications

Beyond topical use, Methyluracil is employed to treat inflammatory and ulcerative conditions within the digestive tract. Its regenerative properties are beneficial for:

  • Peptic ulcers: Assisting in the repair of the gastric and duodenal mucosa.
  • Inflammatory bowel conditions: Such as ulcerative colitis and proctitis, where it helps reduce inflammation and promotes the restoration of the intestinal lining.

Support for Hematological Health

Methyluracil is also known for its leukopoietic effect. It can stimulate the production of white blood cells (leukocytes) in the bone marrow. This makes it a relevant option in cases of mild leukopenia, where a patient's white blood cell count has decreased due to various factors, such as specific medical treatments or toxic exposures.

Benefits of Methyluracil Therapy

The therapeutic value of Methyluracil lies in its multifaceted approach to recovery:

  • Anabolic activity: It promotes the synthesis of structural proteins, which is essential for building new tissue.
  • Anti-inflammatory effect: By stabilizing cell membranes and improving local metabolism, it can help reduce the intensity of inflammation.
  • Immune modulation: Through the stimulation of cellular and humoral defense mechanisms, it assists the body in resisting infection at the site of injury.
  • Photoprotection: When applied topically, it has been noted to provide some level of protection against ultraviolet radiation, aiding in the recovery of actinic dermatitis.

Eligibility and Restrictions for Use

Eligibility Profile: Regulatory Overview

Methyluracil's population eligibility profile is strictly defined by regulatory contraindications and age-specific rules based on the drug's leukopoietic activity. Use is permitted for the general adult population under standard conditions, provided no exclusionary criteria exist.

Absolute Contraindications

Regulatory documents explicitly prohibit the use of Methyluracil in patients with:

  • Hypersensitivity to the active substance or excipients.
  • Malignant Diseases of the Blood System (e.g., Acute and Chronic Leukemia, Lymphogranulomatosis, and other Hemoblastoses).
  • Malignant Diseases of the Bone Marrow.

Age- and Status-Based Restrictions

Population Group Regulatory Status
Children under 3 (Oral forms) Contraindicated
Children under 8 (Rectal forms) Contraindicated
Pregnancy and Lactation Conditional Use (Only if benefit outweighs risk)
Severe Hepatic Impairment Not Recommended for large-area topical use

Use during pregnancy and lactation is categorized as conditional, allowed only if the expected benefit significantly outweighs the documented potential risk. This framework ensures that the drug is used only within officially established population boundaries.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory information for Methyluracil focuses on a pharmacodynamic interaction pattern concerning certain co-administered medicinal products.

Documented Interaction Patterns

The primary documented interaction is with Indirect Anticoagulants, such as Coumarin derivatives. Co-administration has been officially associated with an increased activity of these anticoagulant substances, representing a clinically significant pharmacodynamic outcome described in regulatory-supported data.

Property Documented Interaction
Interacting Class Indirect Anticoagulants
Interaction Outcome Increased activity of the anticoagulant substance
Interaction Basis Pharmacodynamic

Absence of Specific Pharmacokinetic Restrictions

The prescribing information available from top-tier governmental agencies (such as the FDA or EMA) does not contain standardized, explicit documentation for interactions driven by metabolic enzymes (e.g., CYP) or drug transporters. Consequently, there are no official statements mandating timing requirements for separating the administration of Methyluracil from other medicines, specific foods, alcohol, or herbal products. Furthermore, no specific drug-drug combinations are formally listed as contraindicated in these widely published regulatory summaries.

Mechanism of Action

Methyluracil is a pyrimidine derivative whose primary mechanism involves interaction with nucleic acid synthesis pathways. The molecule functions as a precursor in the pyrimidine salvage pathway, facilitating its incorporation into newly synthesized DNA and RNA. This incorporation increases the rate of cell division in target tissues, a process often referred to as hyper-regeneration, and simultaneously increases the expression of certain cellular differentiation factors.

At a downstream level, the compound modulates the maintenance of extracellular tissue matrix components and influences the synthesis of structural proteins necessary for cell integrity. These molecular actions contribute to cellular turnover and regeneration, influencing the biological progression of localized tissue damage. This process affects the rate of tissue remodeling and promotes the proliferation of fibroblasts and epithelial cells, which may also modify the balance of pro- and anti-inflammatory cytokines within the microenvironment.

Dosage and Administration Information

Methyluracil (Dioxomethyltetrahydropyrimidine) is administered across three primary routes. The dosage forms include a 500 mg tablet for systemic oral use, a 500 mg suppository for rectal administration, and a 10% ointment or gel for topical use.

Administration and Dosing

The standard adult oral regimen involves taking 500 mg per dose, typically administered four times per day, with a maximum daily limit of 3,000 mg (3 g). Rectal administration usually involves 500 mg to 1 g, applied up to four times daily. An administration instruction specifies that oral tablets should be taken during or immediately following a meal.

Duration and Age-Specific Use

Dosage is adjusted for younger patients. For example, children between 3 and 8 years old are prescribed a lower 250 mg dose, usually administered three times daily, while adolescents between 8 and 14 years may receive up to 500 mg per dose. The treatment is structured into a course length, which can be variable, ranging from 7 days to 4 months, though a duration of 30 to 40 days is often specified for internal conditions.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Methyluracil

Research Evidence for Tissue Repair and Wound Healing

Research has explored Methyluracil in studies involving conditions with damaged or compromised tissue. The evidence base includes Randomized Controlled Trials (RCTs), Controlled Clinical Trials (CCTs), and observational studies. These studies monitored outcomes related to physical discomfort and physiological recovery. Research examined tangible physical measurements, such as the rate and timeline of wound closure and reepithelization on markers of tissue integrity. Research focused on conditions such as thermal burns, postoperative wounds, persistent trophic ulcers, and defects in mucosal erosions.

Trials report how symptoms evolved in the observed populations by measuring how quickly the damaged area improved compared to control interventions. Overall, the findings describe patterns observed in the studies regarding the timeline of tissue healing.

Despite these findings, there remains limited information for long-term outcomes regarding the durability and stability of the repaired tissue after the treatment period ends. The core body of research is often concentrated in specific geographical regions, limiting the availability of recent, large-scale, international RCTs. Furthermore, results apply only to the populations studied in those specific clinical settings.


Research Evidence for Leukopenia and Blood Cell Counts

Methyluracil was studied in research contexts as a leukopoietic stimulant. This means studies explored the compound in cases of low white blood cell counts. The research examined outcomes related to functional imbalance, specifically focusing on the Absolute White Blood Cell (Leukocyte) Count and the recovery rate of specific immune cells, such as Neutrophils.

What Remains Uncertain in Methyluracil Research

While studies provide insight into the potential applications of Methyluracil, several key limitations are recognized in the scientific literature. Evidence quality varies across studies, and comparative evidence is lacking in the form of recent, large-scale, placebo-controlled trials often used to establish modern therapeutic standards. The sample sizes were modest in many historical studies, which means the results apply only to the populations studied and subgroup findings are uncertain.

Frequently Asked Questions (FAQ)

Common questions about Methyluracil (FAQ)


Q: Who is generally advised against using Methyluracil in regulatory guidance?

Official guidance places restrictions on use for individuals with a known hypersensitivity to the substance and those with specific severe malignant diseases of the blood system, such as Leukemia. Additionally, use is generally not recommended during pregnancy, breastfeeding, or for children who fall outside of certain age boundaries defined in the product labeling.


Q: What are the limitations of the current research on Methyluracil?

Research evidence indicates that there are several recognized limitations in the scientific literature regarding Methyluracil. These include varying evidence quality across historical studies, a lack of recent large-scale comparative trials, and often modest sample sizes. This means that results may primarily apply only to the specific populations studied in those clinical settings.


Q: What types of drug interactions are generally described for Methyluracil?

Official regulatory information describes one primary interaction: a pharmacodynamic increase in the activity of Indirect Anticoagulants (a class of blood thinners, like Coumarin derivatives). This means the effect of the anticoagulant may be increased. No other specific drug-drug combinations are formally listed as being completely restricted.


Q: Does Methyluracil interact with common herbal supplements?

Official regulatory documents generally do not contain specific warnings or statements regarding interactions between Methyluracil and common herbal or natural health products.


Q: Are there any known food or drink restrictions while using Methyluracil?

Official prescribing information does not contain explicit statements or official warnings that require separating the administration of Methyluracil from specific foods, drink products, or alcohol.


Q: Does Methyluracil have any known effects on mental clarity or driving ability?

Regulatory safety documentation includes a time-related note concerning dizziness. This note states that dizziness may potentially affect the ability to perform tasks requiring vigilance, such as driving or operating heavy machinery. This consideration persists until a patient’s initial reaction to the medicine has been clearly established.


Q: Are the side effects of Methyluracil usually mild or serious?

The safety profile documents several possible reactions, including localized skin effects, headache, and dizziness. Official guidelines place the most serious restrictions on individuals with severe pre-existing blood disorders, such as Leukemia, which are considered absolute contraindications for using the medicine.


Q: Is it common to feel tired when taking Methyluracil?

According to official product information, effects on the nervous system such as headache and dizziness are documented. However, regulatory summaries generally do not explicitly state whether side effects are 'common' or 'rare,' which means the frequency of a specific symptom like tiredness is not formally described.


Q: Is it okay to use Methyluracil while taking common pain relievers?

Regulatory documents focus on what is restricted, not what is allowed. Official prescribing information does not contain explicit warnings or mandatory timing requirements for separating the administration of Methyluracil from common non-anticoagulant pain relief medicines.


Q: Is Methyluracil studied for use in children?

The official product information includes specific contraindications and dosage adjustment details for various age groups within the pediatric population. This regulatory structure defines the specific population boundaries for use in children.


Q: Why might a patient need to monitor their blood work while using this drug?

The drug is classified as a leukopoietic stimulant, meaning it is noted for helping to enhance the production of white blood cells (leukocytes). Its contraindications also include specific malignant diseases of the blood system. Together, these facts indicate the medicine is associated with conditions involving blood cell counts.


Q: What is the difference between the active and inactive ingredients in Methyluracil?

Regulatory documents clearly define the active ingredient as the substance in the medicine that is responsible for achieving the therapeutic effect. Any other components are known as inactive ingredients (or excipients). These inactive components are included in the formulation primarily to stabilize the drug, facilitate absorption, or aid in manufacturing.

How should Methyluracil be stored and disposed of?

How to Store and Dispose of Methyluracil

Methyluracil must be stored strictly according to the conditions detailed in the official regulatory labeling to maintain its stability and shelf life.

Storage Requirements

  • Temperature and Protection: The medicine must be stored at a controlled room temperature, generally not exceeding 25°C (77°F), and must not be frozen. It is mandatory to protect the product from both light and moisture.
  • Container Rules: Methyluracil should be kept in its original container and the cap or closure must be tightly closed to prevent environmental degradation.
  • Child Safety: In alignment with universal safety mandates, the product must be stored out of the sight and reach of children at all times.

Disposal Instructions

Dispose of any unused or expired Methyluracil and its packaging according to local regulations for pharmaceutical waste. The official guidance is to not dispose of the medicine via wastewater (sinks or toilets) or household trash, and instead utilize authorized drug take-back programs.

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

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