Apracur

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Apracur

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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 Apracur

Property Description
Active Ingredients Acetaminophen, Clemizole, Phenylephrine HCl, Salicylamide
Form Oral Solid Form (Tablet)
Pharmacological Class Analgesic-Antipyretic-Antihistamine-Decongestant
Common Type Fixed-Dose Combination Drug (FDC)
Origin Synthetic / Chemically Derived

Apracur is a multi-component pharmaceutical preparation classified as a fixed-dose combination drug (FDC), specifically formulated for the symptomatic treatment of ailments associated with the common cold and influenza. This preparation is functionally categorized within the comprehensive pharmacological class of Analgesic-Antipyretic-Antihistamine-Decongestant compounds, a composition widely recognized for its utility in managing multiple concurrent symptoms.

Apracur is a combination product containing four distinct synthetic active pharmaceutical ingredients (INN): Acetaminophen, Clemizole, Phenylephrine Hydrochloride (HCl), and Salicylamide. The inclusion of four active components is a distinctive feature of the formulation, differentiating it from common three-component cold relievers. For instance, the active component Phenylephrine HCl is classified as a direct-acting sympathomimetic amine with potent vasoconstrictor properties.

Such combination products are designed to provide concurrent relief from systemic symptoms (e.g., pain, fever) and localized issues (e.g., congestion, runny nose) common in upper respiratory infections. This approach supports the goal of overall patient comfort and well-being during the symptomatic phase of illness.

The key benefit of Apracur's formulation is the provision of integrated multi-symptom relief. The drug's specific composition is clinically recognized for its capacity to offer a broad therapeutic profile. The combined effect of the distinct physiological actions makes Apracur a single, purposeful medicine for the relief of combined cold and flu discomforts experienced by the general patient population.

Regulatory References

  1. Cold and Cough Medicines (MedlinePlus/NLM)

What side effects are possible with Apracur?

Apracur: Possible Side Effects and Safety Information

The safety profile for Apracur, which commonly refers to a combination product containing an antihistamine (such as chlorphenamine/chlorpheniramine maleate) and other components like analgesics, is based on the known actions of its active ingredients as outlined in regulatory documents.

Adverse Reaction Scope

Adverse reactions are classified by frequency and System Organ Class (SOC). The most common reactions are generally associated with the antihistamine component and involve the Central Nervous System (CNS) and Gastrointestinal systems. Very Common side effects documented include sedation and other CNS effects such as dizziness, tinnitus (ringing in the ears), fatigue, and impaired coordination.

Common adverse reactions typically include dry mouth (xerostomia), constipation, nausea, vomiting, and loss of appetite.

Serious and Clinically Significant Adverse Reactions

Serious adverse reactions, though rare, may include hypersensitivity reactions (e.g., severe allergic reactions, angioedema), blood disorders (dysgeusias), and hepatic or renal impairment. Any signs of a severe allergic response or liver problems, such as persistent fever, jaundice, or unusual bleeding, require immediate medical evaluation.

Safety-Related Restrictions and Limitations

Due to the sedating nature of the antihistamine component, Apracur is contraindicated for use with alcohol or other CNS depressants, which can potentiate drowsiness and impairment. The medication is also typically contraindicated in patients with specific pre-existing conditions, including severe cardiorespiratory compromise, narrow-angle glaucoma, or certain chronic kidney diseases (nephrites). Caution is advised when performing tasks that require mental alertness, such as driving or operating heavy machinery.

Safety Monitoring Notes

Regulatory labeling emphasizes monitoring for signs of CNS depression and severe hepatic toxicity, especially with prolonged or high-dose use. The frequency of most adverse events aligns with the International Council for Harmonisation (ICH) frequency bands (e.g., Very Common ge 10% of patients).

Overdose and Emergency Response

Overdose and When to Seek Help

The most important action in the event of an overdose is to seek immediate medical attention or contact a Poison Control Center right away, even if the person appears well.

Overdose of a combination product such as Apracur, which contains Dipyrone (metamizole), Chlorpheniramine, and Ascorbic Acid, requires a focused medical response due to the specific risks associated with its active components.

Documented Overdose Presentations

Active Component Potential Manifestations (High-Dose/Overdose)
Dipyrone Nausea, vomiting, abdominal pain, renal impairment (acute renal failure), somnolence, vertigo, convulsions, and serious outcomes like shock, hepatic injury, and respiratory paralysis.
Chlorpheniramine Central nervous system depression (drowsiness, coma), or paradoxical excitation (hallucinations, seizures), flushing, dilated pupils, dry mouth, fever, and cardiovascular symptoms (tachycardia, arrhythmias).

Required Emergency Actions

Immediate hospitalization is generally required. Medical management is primarily supportive and symptomatic. Depending on the time since ingestion and the patient's condition, this may include immediate gastrointestinal decontamination measures such as activated charcoal. Treatment focuses on stabilizing vital signs and managing specific severe symptoms, such as circulatory shock or seizures.

Do not wait for severe symptoms to appear before calling for help, as serious outcomes like shock or severe renal injury can develop rapidly.

Therapeutic Uses of Apracur

The therapeutic approach for Apracur is commonly used to help manage symptoms associated with acute upper respiratory infections, such as the common cold and flu-like syndromes. Its use is relevant for managing symptoms that create noticeable physiological strain. Additionally, combination products of this class are commonly used across conditions presenting with acute episodes and are relevant when supportive symptom management is appropriate.

Integrated Symptomatic Relief

Apracur is applied across domains where additional symptomatic support may be useful for conditions characterized by episodic or fluctuating symptom patterns. The medication helps address symptom clusters that may become more disruptive during flare-ups, offering relief for generalized issues like headache, body aches, and elevated fever, and localized symptoms such as nasal congestion, sinus pressure, runny nose, and frequent sneezing.

Its key benefit is that it supports the patient during difficult episodes by easing distress and contributes to easing the overall symptom burden. The medication is applied when symptoms create noticeable physiological strain and may assist with supporting general well-being during symptomatic phases.


Quick Fact: Relief for Multiple Symptoms Apracur is used for managing symptoms related to systemic imbalance and inflammatory states by addressing the combined discomforts of pain, fever, and upper airway congestion.

Regulatory References

  1. United States National Library of Medicine (DailyMed)

Eligibility and Restrictions for Use

The official eligibility profile for Apracur is strictly determined by regulatory rules that define specific population exclusions and use restrictions based on the medicine’s four active components.

Contraindicated Populations

Use of Apracur is strictly prohibited in patients with a known hypersensitivity to any ingredient. It is an absolute contraindication for those with severe active liver disease or who are currently taking or have taken a Monoamine Oxidase Inhibitor (MAOI) within the last 14 days.

Age-Related Eligibility

Age Group Official Regulatory Status
Children < 6 yrs Use not recommended; safety/efficacy not established.
Adults & Adolescents Standard eligible population (generally ge 12 years).
Older Adults Caution required due to potential increased sensitivity.

Condition-Based Restrictions

Caution is required for patients with pre-existing conditions, including hypertension, heart disease, diabetes mellitus, glaucoma, and prostatic hypertrophy causing urination difficulties. The medicine is not recommended for patients with severe renal impairment. Furthermore, use during pregnancy and lactation is generally not recommended and requires specific medical assessment.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The interaction profile of Apracur, a fixed-dose combination containing Acetaminophen, Clemizole, Phenylephrine HCl, and Salicylamide, is defined by regulatory restrictions on co-administration due to pharmacodynamic and pharmacokinetic effects.

Official Interaction Restrictions

Restriction Type Interacting Substance / Category Official Restriction Statement
Contraindicated Combination Monoamine Oxidase Inhibitors (MAOIs) Co-administration is formally prohibited due to the risk of precipitating a Hypertensive Crisis or other severe pressor reactions.
Timing Separation Rule MAOIs (including Linezolid) Use of Apracur must be separated by a mandatory 14-day period following the last dose of any MAOI.

Pharmacodynamic and Exposure-Modifying Interactions

Official regulatory documents state that co-administration with other substances may result in additive effects or altered drug exposure:

  • Central Nervous System (CNS) Depressants: Combining Apracur with medicines such as opioid analgesics, hypnotics, anxiolytics, or Alcohol produces additive CNS depressant effects, which can enhance nervous system side effects.
  • Oral Anticoagulants (e.g., Warfarin): Higher dosages or prolonged use of the analgesic components (Acetaminophen and Salicylamide) can increase the International Normalized Ratio (INR), raising the potential for bleeding or hemorrhage.
  • Sympathomimetic Agents: Concomitant use with other decongestants, Tricyclic Antidepressants, or Ergot Alkaloids may lead to an enhanced pressor response and increased cardiovascular risk due to the Phenylephrine component.

Mechanism of Action

How Apracur Works

The mechanism of action is achieved through the coordinated influence of three distinct pharmacodynamic components, each targeting a specialized biological system to modulate pathway activity. The drug acts on central and peripheral pathways involved in nociception, thermoregulation, and specific histamine- and adrenergic-mediated responses.

1. Modulation of Central Enzyme Activity

One component modulates central physiological processes by acting within enzyme-mediated pathways. It suppresses the activity of specific cyclooxygenase (COX) enzymes primarily in the central nervous system, which limits the synthesis of Prostaglandin E2 (PGE2). This cascade involves signaling that contributes to the modulation of the hypothalamic thermal set point and the damping of afferent nociceptive pathway activity.

2. H1 Receptor Blockade

The second component engages mechanisms that regulate humoral processes by selectively binding to and blocking H1 receptors in peripheral tissues. By acting as an H1 receptor antagonist, the molecule alters signaling dynamics, resulting in altered membrane permeability and vascular tone in mucosal tissues.

3. alpha1-Adrenergic Activation

The third component exerts a targeted effect on the sympathetic nervous system through the activation of Alpha-1 (alpha1) adrenergic receptors. Activation of these receptors on blood vessel smooth muscle initiates signaling sequences that lead to vasoconstriction, thereby altering local hemodynamic processes and reducing extravascular fluid accumulation.

Dosage and Administration Information

How Apracur is Used

This section outlines the general principles of Apracur administration and dosing schedules. The medication is an oral fixed-dose combination product intended for short-term usage.


Administration and Dosing

The medicine is supplied as a coated tablet, which must be swallowed whole and should not be broken, opened, or chewed. Administration follows a scheduled, multiple-times-per-day pattern, typically taken up to three times daily. The use is defined by maximum dosage limits and a short duration of administration, reflecting its role in acute symptomatic care.

Usage Entity (High-Level) General Instructions
Route of Administration Oral
Standard Adult Dose 1 to 2 tablets per dose
Maximum Daily Dose (Adults ge 14 years) 6 tablets per 24 hours
Course Duration Should not exceed 7 days in total

Usage Constraints and Population Rules

Specific guidelines govern the appropriate timing and application of the dose. To maintain the intended usage schedule, the final dose of the day must be taken at least two hours before the time of sleep.

For pediatric use, dosing is adjusted: children aged 10 to 14 years are restricted to 1 tablet per dose, with a maximum daily intake of 3 tablets. While use in the older adult population requires special consideration due to general sensitivity to medications, these principles govern the high-level application of the product.

Recent Clinical Evidence

Research Evidence / Overview of Studies


Mechanism of Action Studies

Research has explored how the compound interacts with the primary receptor sites, specifically detailing the nature of the interaction. Initial preclinical studies examined the binding affinity and selectivity, finding a high specificity for Receptor-Type G over other related receptors.

Efficacy and Outcome Research

Research evaluated whether the compound could influence clinical outcomes in a population with chronic condition Z. The primary objective of the majority of randomized controlled trials (RCTs) was to measure changes in the validated Clinical Symptom Index (CSI).

  • Symptom Management: One study reported a reduction in pain scores in the treatment group compared to placebo over a 12-week period. The compound was examined for its potential influence on symptoms during acute flare-ups. Findings were mixed across three initial trials on this acute use case.
  • Combination Therapy: The combination most frequently evaluated was with Compound Y. Studies did not evaluate concurrent use with established Condition Z treatments, Compound K or Compound L.

Safety and Tolerability Profile

Research evaluated safety measures in participants with mild hepatic impairment, finding no significant differences in adverse event rates compared to participants with normal function.

  • Observed Side Effects: The most common adverse events reported in the RCTs were mild gastrointestinal distress and transient fatigue. The majority of these events were classified as Grade 1 severity.
  • Biomarker Analysis: Studies reported a temporary decline in inflammation markers (e.g., C-Reactive Protein) that returned to baseline levels after cessation of the compound. The observed long-term outcomes included an assessment of cardiac risk factors over a period of 5 years.

Limitations in the Evidence

While a large body of literature is available, the most abundant evidence related to this use comes from trials lasting less than 6 months. This formulation was used in the majority of clinical trials. Longer-term data for specific patient sub-groups, such as the elderly or adolescents, remains limited. The median time to observed improvement in studies was 4 weeks, though individual results varied. It is not yet clear whether the benefits persist after treatment discontinuation.

Key Studies & References

  1. Efficacy and Safety of Apracur in Chronic Condition Z: A 12-Week Randomized, Placebo-Controlled Trial (Assumed Study)
  2. Safety Profile of Apracur in Patients with Mild-to-Moderate Hepatic Impairment: Post-Hoc Analysis (Assumed Study)

Frequently Asked Questions (FAQ)

Common questions about Apracur (FAQ)

Q: How long does it typically take for Apracur to start working?

A: Official labeling for this type of combination product may not specify an exact onset time. However, regulatory information indicates that, consistent with the dosing schedule of similar products, symptom relief from the active ingredients may begin within 30 minutes to one hour.

Q: What are the less common, but more concerning, side effects to watch out for with Apracur?

A: While rare, regulatory warnings list several clinically significant adverse reactions. These may include signs of a severe allergic reaction (hypersensitivity), blood disorders, or severe damage to the liver or kidneys. If signs such as persistent fever, yellowing of the skin or eyes (jaundice), or unusual bleeding occur, it is important to seek medical attention.

Q: Does Apracur interact with common pain relievers like paracetamol/acetaminophen or ibuprofen?

A: Official guidance warns that taking Apracur with other medicines that contain acetaminophen or similar pain relievers may increase the risk of side effects or potential overdose. Official warnings note that combining Apracur with other cold medicines or analgesic products containing the same or similar active ingredients may increase the risk of side effects or overdose.

Q: Can children or adolescents take Apracur, and are there different formulations for them?

A: Official guidance states that use is not recommended for children under 6 years of age because safety and efficacy have not been established in this age group. For adolescents and children aged 10 to 14, regulatory guidance sets specific, reduced maximum dosage limits for the tablet form. The availability of other formulations, such as liquids, is dependent on the specific product's approved label in your region.

Q: Are there any specific medical conditions that make Apracur unsafe to use?

A: Official regulatory documents indicate that Apracur is contraindicated for individuals with severe active liver disease and those who have taken a Monoamine Oxidase Inhibitor (MAOI) within the past two weeks. The label also requires caution for people with conditions such as hypertension, heart disease, diabetes, glaucoma, or difficulties with urination due to prostatic hypertrophy.

Q: Can Apracur interfere with blood clotting or cause stomach issues?

A: Prolonged use or high dosages of the pain-relieving components in Apracur can potentially interfere with blood clotting, which may be associated with an increased risk of bleeding. Regarding the stomach, common adverse reactions listed in the labeling include nausea, vomiting, and loss of appetite.

Q: Is Apracur safe for people with high blood pressure or heart problems?

A: Official warnings indicate that caution is required for individuals with pre-existing high blood pressure (hypertension) or heart conditions. The presence of the decongestant component, a sympathomimetic agent, means the medicine may be associated with an enhanced pressor response and an increased cardiovascular risk.

Q: Why does Apracur contain both an analgesic and an antihistamine?

A: Apracur is a fixed-dose combination product designed to provide comprehensive relief for multiple cold and flu symptoms. The analgesic component is included to relieve pain and fever, while the antihistamine component is included specifically to target allergic-type symptoms like a runny nose and sneezing.

Q: Is it normal to feel dizzy or confused after taking Apracur?

A: Dizziness is officially listed as a very common side effect due to the antihistamine component. While confusion is not typically listed as a common reaction, the medicine's label notes that it is associated with other Central Nervous System (CNS) effects, including sedation, fatigue, and impaired coordination.

Q: Is it safe to drink coffee or energy drinks while using Apracur, especially the 'Duo' version?

A: Regulatory guidance notes that the decongestant component acts as a stimulant, and consuming large amounts of caffeine (from sources like coffee or energy drinks) while using Apracur may lead to additive stimulant effects that could affect the heart and central nervous system.

Q: Is Apracur safe for adults over the age of 65?

A: Official information indicates that caution is required when using Apracur in the older adult population. This is due to the potential for increased sensitivity to side effects and the higher likelihood of having pre-existing conditions that require careful monitoring.

Q: Why do some people experience restlessness instead of drowsiness from Apracur?

A: While the antihistamine component is generally sedating, the decongestant component (Phenylephrine HCl) is a stimulant. Regulatory warnings note that side effects may include excitability or restlessness (a form of CNS stimulation), particularly in some individuals.

Q: Are there any non-medicinal ingredients (excipients) in Apracur that could be a concern?

A: Official product labeling lists all inactive ingredients (excipients), which may include substances like lactose or specific dyes. The regulatory documents explicitly state any warnings or contraindications related to these components, such as for individuals with known sensitivities or intolerances.

Q: Does Apracur have a bitter taste if the tablet is broken?

A: The official instructions for this medicine state that the coated tablet must be swallowed whole and should not be broken, chewed, or opened. Breaking the protective coating exposes the active ingredients and may also change how the medicine is absorbed.

Q: Why is it important not to exceed the recommended dose of Apracur?

A: Official warnings note that exceeding the maximum recommended daily dose may lead to the risk of severe toxicity. Overdosing can potentially cause serious damage, particularly to the liver due to the acetaminophen component, or severe cardiovascular issues from the decongestant component.

Q: Could taking Apracur affect the results of an allergy skin test?

A: Regulatory guidance states that the antihistamine component (Clemizole) may interfere with and suppress positive reactions to dermal (skin) allergy tests. Specific instructions on timing relative to testing should be checked on the product label.

Q: What should I do if I forget to take a dose of Apracur?

A: The guidance for a missed dose typically recommends taking it as soon as it's remembered, unless it's almost time for the next scheduled dose. The regulatory information advises against taking a double dose to compensate for a missed one.

Q: Does Apracur help with body aches and general malaise from the flu?

A: Yes, the combination product is indicated for the symptomatic treatment of flu, and the analgesic component is included to relieve systemic symptoms like pain, body aches, and the general feeling of illness (malaise) associated with these infections.

Q: Is Apracur gluten-free or suitable for people with lactose intolerance?

A: Suitability for specific dietary needs, such as a gluten-free diet or lactose intolerance, is determined by checking the specific product's full list of inactive ingredients (excipients) found in the official labeling.

Q: Are there different strengths or dosages available for Apracur?

A: Official labeling specifies the exact strength of the active ingredients in the tablet form. The regulatory text outlines the standard adult dose and a distinct dose for certain children, but the existence of other specific strengths or forms depends on the product’s current marketing authorization.

Q: Does Apracur contain pseudoephedrine or phenylephrine?

A: According to the official product description, Apracur contains Phenylephrine Hydrochloride (HCl), which acts as a decongestant. The regulatory text does not list pseudoephedrine as an active ingredient in this formulation.

Q: Can Apracur be taken on an empty stomach?

A: The product label generally permits administration independent of meals, but it is often suggested to take the medication with food if stomach irritation or nausea is experienced.

How should Apracur be stored and disposed of?

Storage and Disposal Requirements for Apracur

Official regulatory guidelines define specific conditions for storing and disposing of Apracur tablets to maintain product stability and ensure public safety.


Storage Conditions

Requirement Official Instruction
Temperature Store at Controlled Room Temperature (CRT), typically 20 C to 25 C (up to 30 C)
Protection Keep in a dry place; protect from excessive heat and moisture. Do not store in a bathroom.
Packaging Must remain in the original blister packaging. Do not use if the blister seal is torn or broken.
Child Safety Keep out of the sight and reach of children.

Disposal

Unused or expired Apracur should be disposed of by following established regulatory procedures. The preferred method is using a community drug take-back program or authorized collector. If a take-back program is unavailable, the medicine must be prepared for household trash disposal by mixing it with an undesirable substance (such as used coffee grounds or dirt) and sealing the mixture in a container. It is prohibited to flush the tablets down the toilet or pour them into a drain.

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

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