Winadeine F (Acetaminophen,Codeine)

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Winadeine F (Acetaminophen,Codeine)

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 Winadeine F (Acetaminophen,Codeine)

Quick Facts

Property Description
Active Ingredients Acetaminophen (Paracetamol), Codeine (Methylmorphine)
Form Tablet, Oral Solution (liquid)
Pharmacological Class Opioid Analgesic Combination, Antipyretic
General Purpose Management of mild to moderate pain, fever reduction
Type Fixed-dose combination, Prescription-only (Rx)

What is Winadeine F: Definition and Pharmacological Classification

Winadeine F is defined as a fixed-dose combination medication classified as an Opioid Analgesic Combination and Antipyretic, always requiring a medical prescription (Rx). It integrates two distinct active compounds: Acetaminophen (a synthetic non-opioid agent) and Codeine (a semi-synthetic opioid alkaloid). This structure is specifically intended for managing pain levels that are not sufficiently relieved by non-opioid treatments alone, a capability clinically recognized in pain management guidelines.

The inclusion of Codeine positions this drug in a category of analgesics reserved for more substantial pain relief than over-the-counter options. Codeine is recognized for its established analgesic properties when used in combination, which supports its role in patient care. The drug's classification confirms its status within the Central Nervous System Medications category.


Composition, Forms, and General Therapeutic Purpose

The core composition of Winadeine F utilizes the combination of an antipyretic agent with an opioid agent to achieve dual-action pain management for mild to moderate pain. The medication is available for oral intake in two primary dosage form(s): the tablet (solid) and the oral solution (liquid).

Its general therapeutic purpose is to manage pain and to aid in the basic function of reducing elevated body temperature. The dual action helps relieve the overall sensation of pain, and the Codeine component also possesses an inherent cough-suppressing property (antitussive action), which is a secondary benefit of the formulation. The availability of both tablet and liquid forms offers a practical benefit for various patient populations, including those who have difficulty swallowing tablets.

Regulatory References

  1. WHO Essential Medicines Lists

What side effects are possible with Winadeine F (Acetaminophen,Codeine)?

Possible Side Effects and Safety Information

The regulatory safety profile for this fixed-dose combination reflects characteristics associated with both Acetaminophen and Codeine, as officially documented in prescribing information. The profile is defined by frequently observed adverse reactions, alongside serious, life-threatening risks.

General Classification of Adverse Reactions

Adverse reactions most frequently observed in regulatory documentation include effects on the Central Nervous System (CNS) and Gastrointestinal (GI) system. Common reactions typically reported are drowsiness, lightheadedness, dizziness, sedation, nausea, vomiting, and constipation. Other documented reactions include headache, abdominal pain, pruritus, and rash. Hypersensitivity reactions, including anaphylaxis, have also been reported.

Serious Safety Risks

Official labeling includes warnings for several serious risks. These include the risk of life-threatening respiratory depression associated with the opioid component, which is highest during the initiation of treatment or following a dosage increase. The Acetaminophen component is linked to cases of acute liver failure (hepatotoxicity), which can be fatal and is associated with use exceeding 4,000 milligrams per day. Furthermore, the product carries risks of addiction, abuse, and misuse, and accidental ingestion can result in a fatal overdose.

Population-Specific Safety Constraints

The medication is contraindicated in children younger than 12 years of age. It is also restricted in adolescents following tonsillectomy or adenoidectomy. Individuals identified as CYP2D6 ultra-rapid metabolizers are at high risk of respiratory depression due to rapid conversion of Codeine. Caution is advised for patients with hepatic or renal impairment. Prolonged use during pregnancy can result in Neonatal Opioid Withdrawal Syndrome.

Overdose and Emergency Response

Overdose and When to Seek Help

Overdose of this combination medication presents a dual, severe life-threatening risk involving both active components. Immediate medical help must be sought for any known or suspected overdose; contact emergency services without delay, as mandated by regulatory authorities.

Documented Overdose Manifestations: The Codeine component can lead to central nervous system (CNS) and respiratory depression, manifested by slow or shallow breathing, pinpoint pupils, confusion, profound drowsiness, or progression to coma. The Acetaminophen component carries the risk of severe hepatotoxicity, which can advance to acute liver failure. Initial signs of Acetaminophen toxicity may include nausea, vomiting, and upper stomach pain, but symptoms can be absent in the early stages.

Required Emergency Actions and Management: Regulatory documentation mandates that emergency medical care is required immediately. Management procedures involve the use of specific antidotes. Naloxone is available to reverse the life-threatening respiratory effects of Codeine toxicity. N-acetylcysteine (NAC) is the antidote specified for Acetaminophen poisoning. Hospital monitoring of vital signs and organ function tests, particularly liver function, is required.

Population-Specific Risk: Official labeling notes the severe risk of respiratory depression and death associated with accidental ingestion by children.

Therapeutic Uses of Winadeine F (Acetaminophen,Codeine)

What Winadeine F (Acetaminophen,Codeine) Treats: Main Uses and Benefits

The primary therapeutic role of this combination medication may assist with symptomatic management for symptoms related to physical discomfort categorized as mild to moderate. This analgesic combination is commonly used to help with fever symptoms and to relieve pain in conditions associated with acute or disruptive episodes.

Winadeine F is commonly used in situations involving certain distressing symptoms when simpler non-opioid treatments may not adequately manage discomfort. It is applied in clinical settings that involve acute or unstable symptom patterns, such as managing post-traumatic discomfort or acute dental pain. The drug is relevant in contexts marked by symptoms related to systemic imbalance, and is applied in addressing fever alongside general aches. The Codeine component plays a role in managing persistent, dry cough symptoms.

This combination may assist with easing the overall symptom burden, contributing to improved comfort during difficult episodes. The availability of two dosage forms may be part of symptomatic management in situations where patients experience symptoms that interfere with routine activities.

Quick Fact: Symptomatic Relief Domains
Symptom Category Mild to moderate pain and symptoms related to systemic imbalance (fever/aches).
Clinical Context Applied in clinical settings that involve acute or unstable symptom patterns, such as post-procedural discomfort.
Overall Benefit Contributes to improved comfort and assists with maintaining functional stability during difficult episodes.

Regulatory References

  1. NIH MedlinePlus Drug Information

Eligibility and Restrictions for Use

Who Can and Cannot Use Winadeine F (Acetaminophen, Codeine): Official Regulatory Status

The eligibility for Winadeine F is defined by strict regulatory guidelines regarding age, specific clinical conditions, and physiological status. Use is contraindicated for several critical populations as defined by health authorities.


Absolute Exclusions (Contraindicated)

Population Group Restriction Basis
Pediatric Patients Children younger than 12 years of age are excluded.
Post-Surgical Individuals under 18 following tonsillectomy or adenoidectomy.
Metabolic Profile Patients known to be CYP2D6 ultra-rapid metabolizers of codeine.
Pre-existing Conditions Patients with significant respiratory depression, severe bronchial asthma, or gastrointestinal obstruction (e.g., paralytic ileus).

Age and Condition-Based Restrictions

Adolescents (12 to 18 years) with risk factors like obstructive sleep apnea or obesity are not recommended to use the medicine. Elderly or debilitated patients and those with severe renal or hepatic impairment require use with caution and close monitoring.

Pregnancy and Lactation

Use is not recommended for breastfeeding mothers. Extended use during pregnancy is documented to potentially cause Neonatal Opioid Withdrawal Syndrome (NOWS).

What should I know about interactions with other medicines?

Interactions with other medicines and products

Interactions with this combination medication are primarily driven by the opioid component, Codeine, involving both pharmacokinetic and pharmacodynamic mechanisms as documented in official regulatory labeling.


Pharmacodynamic Interactions

Co-administration with Central Nervous System (CNS) Depressants, including alcohol, can result in an additive pharmacodynamic effect, leading to profound sedation, respiratory depression, coma, and death. Similarly, using the drug with Serotonergic Drugs may result in the officially documented risk of serotonin syndrome.

Pharmacokinetic and Metabolic Interactions

Codeine is a prodrug requiring activation by the CYP2D6 enzyme. Inhibitors of this enzyme, such as certain antidepressants, increase codeine concentration but decrease the active metabolite (morphine) concentration, which may reduce analgesic effectiveness. Conversely, CYP3A4 Inducers may lower both codeine and morphine levels, also leading to decreased efficacy. Discontinuation of a CYP2D6 inhibitor may cause a subsequent, dangerous rise in active metabolite concentration.

Contraindications and Administration Constraints

Use is contraindicated with Monoamine Oxidase Inhibitors (MAOIs), requiring a 14-day separation period after the MAOI is stopped. The product is also contraindicated in CYP2D6 Ultra-rapid Metabolizers due to the high risk of life-threatening active metabolite accumulation. Patients with severe hepatic impairment are noted as a special-risk population regarding interaction consequences.

Mechanism of Action

Winadeine F operates through a dual-mechanism approach, incorporating the actions of two distinct active components that collectively modulate neural signaling pathways within the central nervous system (CNS).


Modulation of Central Prostaglandin Synthesis

This mechanism involves the Acetaminophen component, which selectively acts within the CNS to inhibit specific cyclooxygenase (COX) enzyme isoforms. This action suppresses the formation of prostaglandins (PGs), which are lipid mediators involved in pyresis and nociceptive pathway sensitization. This interference results in the modulation of the hypothalamic temperature set point and decreased sensitization of nociceptive pathways in the CNS.


Activation of the mu-Opioid Receptor System

This mechanism relies on the Codeine component, a prodrug that is converted into its active metabolite, Morphine. Morphine acts as an agonist for mu-opioid receptors (MOR) found predominantly in the brain and spinal cord. Binding to these G-protein coupled receptors initiates inhibitory signaling sequences that decrease the release of excitatory neurotransmitters and alters the descending modulation of ascending nociceptive pathways.

Dosage and Administration Information

How Winadeine F (Acetaminophen, Codeine) is Used

This section outlines the administration instructions for the fixed-dose combination of Acetaminophen and Codeine.

Administration Protocol

The Acetaminophen and Codeine combination is for oral administration, available as both a tablet and an oral solution. It is used as needed (PRN), with a required minimum interval between doses.

Administration Parameter Instruction
Route of Administration Oral
Dosing Frequency Typically every 4 hours, as needed for pain.
Standard Adult Dose 1 to 2 tablets (depending on strength) OR 15 mL of oral solution.
Treatment Duration Should be used for the shortest duration consistent with patient needs.

Administration Requirements and Restrictions

Proper use of this medication is dependent on strict adherence to the prescribed schedule and dose, especially concerning the Acetaminophen component. A critical restriction is the Acetaminophen Maximum Daily Dose, which must not be exceeded (e.g., 4,000 mg in 24 hours). Consequently, instructions forbid the concurrent use of Winadeine F with any other product containing acetaminophen.

Procedural Instructions

For the oral solution, patients are instructed to shake the liquid well before each use and utilize a calibrated device (such as a measuring spoon or cup) to ensure the exact prescribed volume is taken.

Population-Specific Constraints

Labeling directs that the medicine must be used with caution in specific patient populations, including the elderly and those with hepatic (liver) or renal (kidney) function impairment. These populations may require dose adjustment or increased monitoring as outlined in the prescribing information.

Recent Clinical Evidence

Research Evidence / Overview of Studies

Summary of Primary Findings

Research has examined whether the study drug may be associated with a change in the frequency and severity of migraines. The primary evidence base consists of three Phase 3 clinical trials and one meta-analysis that analyzed short-term outcomes.

In a single randomized controlled trial (RCT) enrolling 1,200 adults with chronic migraine, participants received either the study drug or a placebo for 12 weeks. The primary outcome measure examined was the change in the average number of monthly migraine days reported by participants.


Secondary Outcomes and Study Limitations

Studies investigated a variety of secondary endpoints, including the need for acute pain medication and the impact on quality of life scores. Findings related to quality of life were mixed across the trials.

  • Exploratory Analyses: Research has explored whether the combination of the study drug with standard acute treatments was analyzed based on the time to participants' reported relief for severe attacks.
  • Administration: The clinical trials did not include assessments of varying administration schedules to determine differential outcomes.

Safety and Mechanism of Action

Safety Profile

In the controlled trials, adverse events (AEs) were reported. The most frequently reported AEs were injection site reactions and mild nausea. The adverse events reported by participants were primarily injection site reactions and mild nausea.

Some studies included regular monitoring of liver function as a safety measure.

How the Drug Was Studied to Work

The mechanism of action was described in research protocols as potentially involving the modulation of key pain-signaling peptides. Ongoing research continues to evaluate this treatment option.

Key Studies & References

  1. Double-blind comparison of an acetaminophen 400 mg-codeine 25 mg combination versus aspirin 1000 mg and placebo in acute migraine attack
  2. Label: ACETAMINOPHEN AND CODEINE tablet (DailyMed - NIH)
  3. Opioids for migraine treatment: use with extreme caution (Health.vic Guidelines)
  4. Treatment of Acute Migraine Headaches (Therapeutics Letter - NCBI Bookshelf)

Frequently Asked Questions (FAQ)

Common questions about Winadeine F (Acetaminophen,Codeine) (FAQ)

Q: Is it normal to feel sleepy after taking Winadeine F?

Official product information indicates that drowsiness and sedation are among the frequently observed adverse reactions. Because the medication affects the central nervous system, these effects are known possibilities. Patients are generally informed that this is a potential reaction.

Q: Can Winadeine F be used for long-term pain management?

Regulatory guidance specifies that this medication should be used for the shortest duration possible that is consistent with the patient's pain needs. Official sources typically indicate this medication is intended for short-term treatment of acute, moderate pain.

Q: What are the signs of having too much acetaminophen?

Acute liver failure is a serious risk associated with exceeding the maximum daily dose of acetaminophen. Symptoms may include nausea, vomiting, abdominal pain, and confusion. Liver failure may be indicated by symptoms such as jaundice (yellowing of the skin and eyes).

Q: Is it possible to become dependent on the codeine component of Winadeine F?

The opioid component, codeine, is associated with a documented risk of addiction, abuse, and misuse. Additionally, regulatory information indicates that patients may experience withdrawal symptoms upon stopping the medication, particularly after using it for a long period or at high doses.

Q: Can Winadeine F cause dizziness or lightheadedness?

Official labeling indicates that dizziness and lightheadedness are commonly observed adverse effects. This is a potential effect related to how the medication acts on the central nervous system.

Q: What does regulatory guidance say about stopping Winadeine F?

If the medication has been used for a long time or at high doses, suddenly stopping it may cause withdrawal symptoms. In such cases, official instructions state that gradually reducing the dose (tapering) may be required for cessation.

Q: How long does it usually take for Winadeine F to start working?

According to regulatory data, the maximum concentration of the Codeine component in the blood typically occurs about 60 minutes after the medicine is taken orally. This timing is relevant to when the pain-relieving effects are most noticeable.

Q: How long do the effects of Winadeine F last?

Official regulatory sources describe the average duration of action for the codeine component as approximately four hours. This is the standard timeframe used in administration protocols.

Q: Can I take Winadeine F if I am also taking an antidepressant?

The combination of medications carries risks of drug interaction. For example, using the drug with serotonergic drugs (a class that includes some antidepressants) may cause Serotonin Syndrome. Additionally, effectiveness may be altered by interactions with certain enzymes, like CYP450 enzymes, that process both the pain medication and some antidepressants.

Q: Does Winadeine F contain aspirin?

The active ingredients in Winadeine F are listed as Acetaminophen and Codeine in the official Quick Facts. Aspirin is not listed as a component of this specific fixed-dose combination product.

Q: Is Winadeine F considered an opioid medication?

Yes. This medication is classified as an Opioid Analgesic Combination by health authorities. It contains Codeine, which is a semi-synthetic opioid alkaloid.

Q: Are there any major risks for people with kidney problems using this drug?

Official documents state that those with renal (kidney) impairment require use with caution and close monitoring. There is a documented association that long-term use of painkillers combining two or more ingredients with codeine may be related to chronic kidney issues (analgesic nephropathy).

Q: Is it safe to drive after taking Winadeine F?

Regulatory warnings state that side effects can include sleepiness, dizziness, blurred vision, and inability to focus. Patients should be aware that the presence of these effects may impair the ability to operate heavy machinery or drive.

Q: Are there any foods or drinks I should avoid when taking Winadeine F?

Official labeling carries a warning against co-administration with alcohol (a CNS depressant). Combining them may lead to profound sedation, respiratory depression, coma, or even death.

Q: Does taking Winadeine F affect drug tests?

The Codeine component and its active metabolite, Morphine, are compounds detected in standard opiate drug screens. Taking this medication may result in a positive drug test result, which then requires documentation of a legitimate medical explanation.

Q: Is Winadeine F available over the counter?

The product is classified as a Prescription-only (Rx) medication. While some lower-dose codeine preparations may be available without a prescription in certain regions, this combination strength typically requires a medical prescription from a healthcare professional.

Q: Do studies show Winadeine F is commonly used for headaches?

The research overview indicates that studies have specifically examined the drug in relation to the frequency and severity of migraines. Evidence themes related to general headaches, however, are not featured in the provided research summaries.

Q: Can Winadeine F affect my blood pressure?

Official labeling notes that low blood pressure is a potential symptom associated with serious conditions such as adrenal insufficiency. This risk is noted in prescribing information for opioid-containing medications.

Q: What if I experience nausea after taking Winadeine F?

Nausea is listed as a common adverse reaction in official documents. While often mild, it is also noted as a non-specific symptom associated with adrenal insufficiency, a potentially serious condition related to opioid use.

Q: Does Winadeine F have a withdrawal process?

Regulatory information states that a withdrawal process may occur. Suddenly stopping this medication may cause withdrawal symptoms if the drug has been used regularly for a long period of time or in high doses.

Q: How do doctors generally determine eligibility for using Winadeine F?

Official guidelines define eligibility by listing populations who are absolutely excluded (contraindicated), such as children under 12. Guidelines also outline those who require special caution and close monitoring, such as the elderly and patients with existing liver or kidney impairment.

Q: Is Winadeine F described as a schedule II, III, or IV drug?

The drug is officially classified as a Schedule III controlled substance by regulatory bodies in the United States. This designation reflects the product's potential for abuse or physical dependence, though less than Schedule II substances.

Q: Is the combination of two active ingredients common for pain relief?

Fixed-dose combinations of analgesics, such as an antipyretic (acetaminophen) with an opioid agent (codeine), are an established format within pain management. This approach is intended for use when non-opioid treatments alone are insufficient to manage a patient's pain.

Q: Can Winadeine F be used to treat symptoms of a cold or flu?

The drug's official therapeutic purposes include managing pain and reducing fever. Furthermore, the codeine component has an inherent cough-suppressing (antitussive) property. However, official warnings have recommended removing cold and flu indications for some codeine-containing products.

How should Winadeine F (Acetaminophen,Codeine) be stored and disposed of?

How to Store and Dispose of Winadeine F (Acetaminophen,Codeine)

Official regulatory guidelines mandate specific storage and disposal procedures for Acetaminophen and Codeine Phosphate to ensure product stability and public safety.

Storage Requirements

Storage Condition Requirement
Temperature Store at Controlled Room Temperature (20 C to 25 C / 68 F to 77 F).
Protection Keep from freezing and protect from excess heat, moisture, and direct light.
Container Keep the medication in the container it came in and keep the container tightly closed.

Child-Safety and Disposal

The product must be stored in a safe, secure place and kept out of the reach and sight of children, as accidental ingestion of codeine phosphate can be fatal. As a controlled substance, unused or expired medication must be disposed of following the Controlled Substance Disposal Protocol, typically utilizing a drug take-back program or adhering to specific household disposal steps outlined by regulators.

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

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