Codoliprane

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Codoliprane

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 Codoliprane

Property Description
Active ingredient Acetaminophen (Paracetamol) and Codeine
Form Oral Tablet, Capsule, Solution, or Elixir
Pharmacological class Opioid and Non-Opioid Combination Analgesic, Antipyretic
Common use Relief of mild to moderate acute pain and fever
Origin Synthetic (Acetaminophen) and Semi-synthetic (Codeine, derived from Morphine)

What Type of Medicine is Codoliprane?

Codoliprane is an oral fixed-dose combination product containing the active ingredients Acetaminophen (Paracetamol) and Codeine. It is specifically classified as an Opioid and Non-Opioid Combination Analgesic, reflecting its dual mode of action that targets pain through two separate pathways. This specific dual-component composition is used for the purpose of providing pain relief.

What are the Active Ingredients in Codoliprane and How is it Formulated?

The product's identity is defined by its two core chemical substances: Acetaminophen (a synthetic compound) and Codeine (a semi-synthetic alkaloid). The combination typically uses a Codeine salt (such as phosphate) to ensure stability. Codoliprane is intended for oral administration, and it is generally formulated into convenient oral dosage forms, such as the Oral Tablet, Capsule, or a liquid Oral Solution or Elixir.

What is the General Purpose of Codoliprane?

The general therapeutic purpose of Codoliprane is the mitigation of mild to moderate acute pain and the reduction of fever. The drug's design capitalizes on the synergistic action of its components, a mechanism recognized for providing greater patient comfort compared to monotherapies. The overall use of the product is confined to managing patient discomfort when treatment with simple, non-opioid pain relievers is insufficient, leveraging both central pain suppression and antipyretic effect.

What side effects are possible with Codoliprane?

Possible Side Effects and Safety Information

The safety profile of Codoliprane (a combination product containing Codeine and Paracetamol/Acetaminophen) is determined by the risks associated with both active substances, as documented by regulatory authorities like the EMA and FDA.

Common and Less Common Adverse Reactions

The most commonly reported adverse reactions affect the Nervous System and Gastrointestinal System. These often include dizziness, somnolence (drowsiness), nausea, vomiting, and constipation. Other effects reported include headache and sweating. Nausea and vomiting may decrease with continued use.

Serious Adverse Reactions

Respiratory Depression: This is a serious, potentially fatal risk. It is increased when the medicine is used in combination with other Central Nervous System (CNS) depressants, including alcohol, or in patients with compromised respiratory function. Severe respiratory depression has led to restrictions on use in specific pediatric populations.

Toxicity Risks: The Paracetamol component carries a significant risk of hepatotoxicity (liver damage), which is dose-dependent and can be fatal. Long-term, high-dose use of combination products has also been associated with severe renal and gastrointestinal harm.

Dependence and Misuse: The Codeine component is a controlled substance with the potential for developing physical dependence and substance use disorder, particularly with prolonged use.

Population-Specific Restrictions

Official regulatory documents place strict restrictions on use in certain groups due to an increased risk of severe adverse effects:

  • Children: The medicine is contraindicated in children younger than 12 years of age. It is also contraindicated in patients under 18 years following tonsillectomy and/or adenoidectomy for Obstructive Sleep Apnoea Syndrome.
  • CYP2D6 Ultra-Rapid Metabolizers: It is contraindicated in patients of any age known to be ultra-rapid metabolizers of Codeine.
  • Breastfeeding Women: It is contraindicated in women who are breastfeeding due to the risk of exposing the infant to high levels of morphine via breast milk.

Overdose and Emergency Response

The official regulatory profile for an overdose of this combination product is defined by two distinct and potentially fatal toxicological syndromes. Early overdose manifestations may include non-specific symptoms such as nausea, vomiting, diaphoresis, and malaise. However, the officially documented severe manifestations are dual: Codeine toxicity can lead to severe respiratory depression, resulting in coma and cardiorespiratory arrest, while Acetaminophen toxicity can result in delayed acute liver failure and hepatic necrosis.

Due to this dual risk, regulatory authorities mandate that users seek immediate medical attention or contact emergency services right away following any known or suspected overdose, regardless of initial symptom severity. This immediate action is necessary because clinical evidence of liver injury may be delayed up to 72 hours post-ingestion.

Management documented in official prescribing information involves specific supportive and symptomatic measures, including continuous cardiorespiratory and hepatic function monitoring. Furthermore, two specific antidotes are utilized: Naloxone for reversing opioid effects and N-acetylcysteine (NAC) for treating Acetaminophen toxicity. Increased overdose risk is officially noted for patients with pre-existing hepatic impairment.

Therapeutic Uses of Codoliprane

What Codoliprane Treats: Main Uses and Benefits

The primary therapeutic role of this medication is to address situations involving certain distressing symptoms, primarily pain and discomfort, where additional symptomatic support is needed. It is used across conditions presenting with acute episodes of mild to moderate pain, especially when symptoms are not adequately managed by non-opioid pain relievers alone.

Enhanced Relief for Acute Moderate Pain

This combination is generally applied in scenarios where symptoms that interfere with daily functioning become intense or disruptive, such as severe headaches, toothache, acute back pain, or postoperative discomfort. It plays a role in managing symptoms that create noticeable functional strain. The medication provides supportive relief, which is intended to help ease the overall symptom burden and may assist with maintaining functional stability during these acute phases.

Management of Pain and Associated Fever

Relevant in contexts marked by increased discomfort or tension, this therapy addresses symptom clusters that include systemic discomfort and elevated body temperature (fever). It is used to manage pain and fever that interfere with daily comfort. The dual action contributes to easing the overall symptom load and supports patients during difficult episodes by easing distress.


Quick Fact: Relief for Moderate Acute Pain

This medication is considered relevant for pain that is mild to moderate in intensity and requires additional symptomatic support than what simple analgesics can provide, contributing to easing the overall symptom load.

Regulatory References

  1. NIH MedlinePlus Drug Information on Acetaminophen and Codeine

Eligibility and Restrictions for Use

Eligibility and Contraindications for Codoliprane

Official regulatory guidelines strictly define the populations eligible to use Codoliprane (Acetaminophen/Codeine), primarily due to risks associated with the Codeine component.


Absolute Contraindications (Must Not Use)

Population Group Restriction Basis
Children younger than 12 years of age General age restriction
Adolescents lt 18 years post-surgery Following tonsillectomy and/or adenoidectomy
CYP2D6 Ultra-Rapid Metabolizers Risk of rapid, dangerous conversion to morphine
Women who are breastfeeding Risk of infant exposure to morphine
Patients with significant respiratory depression Pre-existing breathing issues

Restricted or Conditional Use

Use is not recommended or requires caution in specific populations, often necessitating dose adjustment:

  • Patients with Severe Renal or Hepatic Impairment: Due to altered drug clearance.
  • Older Adults (Geriatric): Due to increased susceptibility to age-related organ decline.
  • Adolescents (12–18 years) with Respiratory Compromise: Including conditions like obstructive sleep apnea.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory sources specify multiple interaction patterns for Codoliprane, arising from the properties of both Acetaminophen and Codeine.


Contraindicated and High-Risk Combinations

Co-administration with Monoamine Oxidase Inhibitors (MAOIs) is contraindicated, and use must be separated by at least 14 days, primarily due to the risk of additive serotonergic effects. Concomitant use with alcohol, benzodiazepines, and other Central Nervous System (CNS) depressants (e.g., tranquilizers, general anesthetics) is strictly cautioned against, as this pharmacodynamic interaction may result in profound sedation, respiratory depression, coma, and death.


Metabolic and Exposure Interactions

Codeine is metabolized to the active compound, morphine, by the CYP2D6 enzyme. Drugs that are CYP2D6 inhibitors (e.g., quinidine, fluoxetine, paroxetine) may reduce the conversion of Codeine to Morphine, potentially leading to reduced analgesic efficacy. Conversely, individuals classified as ultra-rapid metabolizers exhibit dangerously high morphine plasma concentrations. The effects of CYP3A4 inhibitors and inducers are also documented to complexly alter the concentrations of both Codeine and morphine.


Other Significant Restrictions

Patients are restricted from taking other products containing Acetaminophen (Paracetamol) or Codeine concurrently to avoid exceeding the maximum daily dose, which carries a risk of hepatic toxicity. The risk of Acetaminophen-related toxicity is officially noted as greater in patients with non-cirrhotic alcoholic liver disease.

Mechanism of Action

Codoliprane is a fixed-dose combination product containing paracetamol (acetaminophen) and codeine. The mechanism involves two distinct pathways.

Paracetamol acts centrally, primarily through the inhibition of prostaglandin synthesis in the central nervous system (CNS), potentially targeting an isoform of cyclooxygenase (COX-3 or a COX variant). This central enzyme inhibition modulates the downstream cascade of local chemical signaling in the brain and spinal cord, resulting in a systemic shift in nociceptive processing and thermoregulation. The antipyretic effect specifically involves inhibition of the hypothalamic heat-regulating center.

Codeine is a prodrug that is converted to the active metabolite, morphine, via O-demethylation catalyzed by the hepatic cytochrome P450 enzyme CYP2D6. Morphine functions as an agonist at the central mu-opioid receptors (MORs), which are G-protein coupled receptors. MOR activation causes the G i protein to inhibit adenylate cyclase activity, reducing the intracellular concentration of cyclic AMP (cAMP). This intracellular event leads to the opening of potassium channels and inhibition of voltage-gated calcium channels, causing hyperpolarization of the neuronal cell membrane. This hyperpolarization, particularly in ascending pain pathways within the CNS, results in a systemic decrease in the transmission of nociceptive signals.

Dosage and Administration Information

Instruction Map: How to use Codoliprane — Administration Guidelines


Administration Scope

Route of administration: Oral (The exclusive route for this combination product, supplied as a tablet, capsule, or solution).

Dosing schedule: The standard single adult dose typically contains 15 mg to 60 mg of the codeine component and 500 mg to 1000 mg of the paracetamol component. The total daily intake of codeine must generally not exceed 240 mg, while the absolute maximum daily limit for paracetamol from all sources is 4,000 mg.

Timing in relation to meals (if applicable): The primary instruction is to adhere to the required time interval between doses.

Preparation requirements (if applicable): Oral liquid or effervescent formulations require dissolution in water or precise measurement with a calibrated measuring device before ingestion.

Age-group administration rules: The product is contraindicated for use in children under 12 years of age. Dose reduction or a prolonged interval is advised for older adults and those with documented renal or hepatic impairment.

Missed-dose rules: Doses are administered as needed for pain, provided the required minimum interval has passed.

Special procedural conditions: A core constraint is the need to verify that no other products containing acetaminophen or paracetamol are being taken concurrently.


Instruction Classifications (High-Level)

Administration method type: Oral

Frequency pattern: As-needed (Prn), with a minimum interval of 4 to 6 hours between doses.

Administration basis: Standard administration protocols.

Use-context constraints: Use is for a short duration, often limited to a maximum of 3 consecutive days unless otherwise directed.


Resulting Procedural Structure

Standard step sequence:

  • Confirm the minimum interval of 4 to 6 hours has elapsed since the previous administration.
  • Administer the standard dose orally, ensuring proper measurement for liquid forms.
  • Monitor total daily intake to ensure the maximum limits for both active components are not exceeded.

Connection to the overall use protocol (2–4 sentences): The protocol defines a standardized, time-constrained method of administration for this combination analgesic. This framework dictates the exclusive oral route, mandates adherence to strict dosing intervals, and requires careful monitoring of the total daily intake of both active components. These instructions establish the procedural structure for short-term use.

Recent Clinical Evidence

Codoliprane: Recent Clinical Evidence

Codoliprane is a fixed-dose combination medication containing paracetamol (acetaminophen) and codeine phosphate. It is primarily studied for its role in managing moderate to severe pain when paracetamol alone is considered insufficient.


Assessment of Pain Management

Recent clinical evaluations have focused on the efficacy and safety profile of the paracetamol/codeine combination in post-operative and chronic pain settings. Research objectives typically evaluate the compound's potential to affect pain intensity and duration, usually measured by validated scales such as the Visual Analogue Scale (VAS) or the Numerical Rating Scale (NRS).

Key findings from various studies indicate that the combination compound was associated with a statistically significant analgesic effect compared to placebo in acute pain models. Furthermore, when compared to paracetamol monotherapy in trials involving patients experiencing pain of moderate intensity, the addition of codeine was reported to offer a higher degree of pain relief in a percentage of participants.


Pharmacogenetic Considerations

Research has increasingly investigated the role of patient genetics, specifically the activity of the CYP2D6 enzyme, in determining the efficacy and safety of codeine. Codeine is an inactive prodrug that requires the CYP2D6 enzyme for conversion into its active metabolite, morphine. Studies examining this process report that individuals classified as ultra-rapid metabolizers may experience a greater effect due to rapid conversion, while poor metabolizers may show minimal or no analgesic effect. The variability in patient response highlights the complexity of relying on codeine for predictable pain relief across the general population. The full set of results and detailed statistical analysis is available in the peer-reviewed published literature.

Key Studies & References

  1. Annotation of FDA Label for codeine and CYP2D6 (Focus on Ultra-Rapid and Poor Metabolizers)

Frequently Asked Questions (FAQ)

Common questions about Codoliprane (FAQ)


Q: Is Codoliprane the same as standard acetaminophen?

Official regulatory information classifies Codoliprane as an opioid and non-opioid combination analgesic. This means it is distinct from standard acetaminophen (paracetamol) alone because it also contains codeine. This dual composition is described as targeting pain through two separate pathways.


Q: Does Codoliprane interact with blood thinners?

Regulatory documents indicate that the product may interact with certain medicines used to prevent blood clots, such as warfarin and acenocoumarol. Because of this potential for interaction, concomitant use is associated with the need for caution.


Q: Can you take Codoliprane with common cold and flu medicines?

Official safety warnings caution against concurrent use with other medicines that contain acetaminophen (paracetamol), including many common cold and flu remedies. This restriction is in place to help patients avoid exceeding the maximum daily limit for paracetamol, which poses a serious risk of liver toxicity.


Q: Why do official sources caution against combining Codoliprane with alcohol?

Regulatory documents strongly caution against the combination of this medicine with alcohol. The official reason is the potential for additive effects on the central nervous system, which may result in severe outcomes like profound sedation, respiratory depression, or coma.


Q: What did the main clinical studies on Codoliprane examine?

Clinical evaluations have primarily focused on the combination's effectiveness in managing moderate to severe acute pain when non-opioids are not sufficient. Studies have also investigated the safety profile related to patient CYP2D6 metabolizer status, which is the enzyme responsible for converting codeine into its active form.


Q: Is it possible for Codoliprane to cause an allergic reaction?

Yes, official drug safety information confirms that it is possible to experience signs of an allergic reaction. These reactions may include swelling of the face or tongue, rash, or difficulty breathing. Regulatory guidance advises immediate medical assistance if these symptoms occur.


Q: What is the difference between Codoliprane and products with only codeine?

Codoliprane is a fixed-dose combination product containing both the opioid codeine and the non-opioid paracetamol. Products containing only codeine lack the additional paracetamol component, which contributes both analgesic (pain relief) and antipyretic (fever reduction) actions to the overall treatment.


Q: How quickly does Codoliprane usually start to work?

While the exact time of onset can vary, the official dosing interval defined by regulatory guidance is typically 4 to 6 hours. This interval is established based on the required time between administrations.


Q: How long does the effect of Codoliprane generally last?

Regulatory guidance dictates a minimum interval of 4 to 6 hours between administrations. This time frame is established by regulatory bodies as the necessary period to observe before the next administration.


Q: Can Codoliprane cause drowsiness or make you sleepy?

Official safety information lists somnolence (drowsiness) and dizziness as commonly reported effects. These effects are related to the codeine component and may affect some people who take the product.


Q: Are there common side effects people notice when first taking Codoliprane?

Regulatory warnings indicate that the risk of serious side effects, including severe breathing problems (respiratory depression), is highest when first starting the medication or immediately following a dose increase. Commonly reported side effects include nausea and constipation.


Q: Is it possible to become dependent on Codoliprane?

Yes. Due to the codeine component, regulatory documents confirm the medicine has the potential for developing physical dependence and substance use disorder with prolonged use. This risk contributes to the regulatory decision to limit its duration of use.


Q: Are there any known interactions between Codoliprane and herbal supplements?

Official drug information from regulatory sources specifies that certain herbal supplements may interact with the codeine component. For instance, St. John's wort and tryptophan are mentioned as products that should be discussed with a healthcare professional due to potential interactions.


Q: Why is Codoliprane sometimes limited to short-term use?

This restriction is based on the potential for developing physical dependence and misuse related to codeine, as well as the risk of severe liver damage from prolonged exposure to high doses of paracetamol. Regulatory bodies limit its use to a short duration for these safety reasons.


Q: Does Codoliprane have a different safety classification than plain paracetamol?

Yes, it does. Regulatory bodies classify the combination product as a medication containing a weak opioid, placing it in a different analgesic category than plain paracetamol. This difference often means the product has tighter regulatory control, such as being classified as prescription-only in many regions.


Q: Are there research findings about Codoliprane's use in children?

Yes. Extensive regulatory reviews have been conducted, with findings that led to restrictions on use in children. The key findings concern the high risk of severe breathing problems (respiratory depression) in certain young people, such as those under 12 or those with specific metabolic rates.


Q: Is Codoliprane available without a prescription in some regions?

The availability and method of sale for this product are subject to regulatory differences across jurisdictions. In some areas, the medicine is classified as prescription-only, while in others, it may be available over-the-counter through a pharmacist, often with strict limits on the quantity and strength.


Q: What should a person do if they suspect a rare side effect from Codoliprane?

Official drug safety instructions advise that if a rare or serious side effect is suspected, the person should immediately seek assistance from a healthcare professional. They are also instructed to report the event to their country's national drug safety reporting system, such as MedWatch or the Yellow Card Scheme.


Q: Why do some people experience stomach discomfort with Codoliprane?

The combination product's side effects commonly include gastrointestinal issues like nausea, vomiting, and constipation. These effects are related to the codeine component, which is documented to slow down movement within the gastrointestinal tract.


Q: Is Codoliprane effective for menstrual pain, according to official indications?

The official indication is for the relief of mild to moderate acute pain. Regulatory documents state its general use for acute pain conditions, which may include discomfort such as menstrual pain.


Q: What kind of pain is Codoliprane generally intended for?

The medicine is officially indicated for the management of mild to moderate acute pain.


Q: Does the packaging of Codoliprane usually contain specific warnings about driving?

Yes. Official drug information and packaging inserts typically include a warning. This advisory notes that individuals should be cautious before driving or operating machinery until they are certain how the medicine affects them, due to the risk of dizziness or drowsiness.


Q: Does Codoliprane affect concentration levels?

Official safety information lists Central Nervous System (CNS) effects such as drowsiness, dizziness, and sedation. Because of this, the medicine may affect a person's ability to concentrate and their overall level of alertness.


Q: Why is the amount of active ingredients often emphasized on Codoliprane's label?

The strength of the active ingredients is emphasized to help the public track their total daily intake of both components, particularly the acetaminophen dose. This control is necessary to avoid exceeding the maximum daily limit and risking severe liver toxicity.


Q: What are the typical non-pain-related uses for Codoliprane, if any?

In addition to pain relief, official indications for the combination product include the reduction of fever (antipyretic effect). In some formulations, the codeine component may also be used for its effect in suppressing a cough (antitussive effect).


Q: Does official evidence exist regarding Codoliprane's long-term safety?

Regulatory guidelines explicitly restrict the use of the product to a short duration. This restriction is in place because the long-term safety of the drug is not established for general use, and the potential risks, such as organ damage and dependence, are significant with chronic use.


Q: Is there a generic version of Codoliprane described in regulatory documents?

Regulatory documents frequently refer to the product by its generic chemical names, such as 'paracetamol and codeine phosphate tablets.' This standardized terminology is used by regulatory bodies to describe the recognized generic drug structure for use by generic drug manufacturers.

How should Codoliprane be stored and disposed of?

Regulatory documents define mandatory conditions for the storage and disposal of this medicine, focusing on product stability and public safety.

Storage Requirements

Condition Official Requirement
Temperature Store at a temperature not exceeding 25 C for most solid dosage forms.
Protection Store in the original package to protect from light and moisture; the container should be kept tightly closed where applicable.
Child Safety The product must be kept out of the sight and reach of children.

Disposal Instructions

Expired or unused Codoliprane must not be thrown away with household waste or discarded into wastewater. Official instructions require that the product be returned to a pharmacist for disposal or taken to a designated medicine take-back location. This protocol ensures proper pharmaceutical waste handling and helps protect the environment.

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

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