Daleron COLD3

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Daleron COLD3

Method of action: Cough And Cold Preparations

Treatment option:

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 Daleron COLD3

Property Description
Active Ingredients Acetaminophen, Dextromethorphan, Pseudoephedrine
Form Film-coated Tablets (Oral Solid Dosage)
Pharmacological Class Upper Respiratory Combination (Analgesic, Antitussive, Decongestant)
Target Audience Adults and adolescents (typically 12 years and older)
Manufacturer / Origin Krka (Slovenia/EU-based manufacturer)

What Type of Combination Medicine is Daleron COLD3?

Daleron COLD3 is a synthetic Fixed-Dose Combination (FDC) product, distinctly manufactured by Krka, an EU-based pharmaceutical company. It is classified pharmacologically as an Upper Respiratory Combination and delivered via the oral route of administration in a film-coated tablet form. This formulation is clinically recognized for consolidating three distinct pharmacological actions into a single product, differentiating it from remedies requiring sequential administration of single-ingredient medicines. The FDC nature targets simultaneous symptomatic relief, offering a practical solution for patients experiencing several acute cold or flu symptoms at once.

Active Ingredients: Acetaminophen, Dextromethorphan, and Pseudoephedrine

The core of Daleron COLD3 consists of three INN-identified active ingredients: Acetaminophen, Dextromethorphan Hydrobromide, and Pseudoephedrine Hydrochloride. This composition dictates its triple-action profile: Acetaminophen serves as the non-opioid analgesic and antipyretic, targeting pain and fever. Additionally, Dextromethorphan acts as a centrally-acting antitussive, suppressing non-productive coughing. Pseudoephedrine, a sympathomimetic amine, addresses nasal swelling and congestion through its vasoconstrictor action in the nasal mucosa.

General Purpose for Cold and Flu Symptom Relief

The general purpose of Daleron COLD3 is to provide comprehensive multi-symptom relief by combining the three therapeutic agents to manage the collective malaise of the common cold or influenza. The combination is engineered to help lessen generalized body aches, reduce fever, suppress irritating dry coughing, and clear the nasal passages. This integrated approach allows the medication to manage the primary discomforts of a viral respiratory illness.

Regulatory References

  1. National Library of Medicine, MedlinePlus
  2. European Medicines Agency (EMA)

What side effects are possible with Daleron COLD3?

Possible side effects and safety information

The safety profile of Daleron COLD3 (Acetaminophen, Dextromethorphan, Pseudoephedrine) is established by combining the official adverse reaction data for its three active components, as documented in governmental regulatory sources. The adverse reactions are classified by frequency and grouped into System-Organ Classes (SOCs), reflecting the potential impact across various body systems.

Frequency-Classified Adverse Reactions

Adverse effects listed in official labeling include reactions categorized as Common, such as nervousness, insomnia, dry mouth, mild headache, and dizziness. More severe reactions, including severe skin disorders and blood dyscrasias, are typically classified as Rare or Very Rare. Effects like high blood pressure (hypertension), fast heart rate (tachycardia), and anxiety are also documented, sometimes with a Frequency Not Known designation in regulatory texts.

Key Safety Constraints and Serious Risks

The safety profile includes critical limitations and risks. A primary concern is the potential for severe hepatotoxicity (liver damage) associated with acetaminophen, which is explicitly linked to exceeding the maximum recommended dose. The regulatory label imposes a strict restriction on the concurrent use of other products containing acetaminophen. Furthermore, the medication is contraindicated in individuals taking Monoamine Oxidase Inhibitors (MAOIs), or within 14 days of stopping them, due to the risk of life-threatening interactions.

Population-specific safety considerations require caution in older adults (due to increased susceptibility to cardiovascular and neurological effects) and in individuals with pre-existing conditions, including hypertension, heart disease, diabetes, or severe hepatic impairment, primarily due to the pseudoephedrine component. These official statements structure the understanding of the medicine’s risk characteristics.

Overdose and Emergency Response

The official regulatory information for this combination medication defines overdose by the distinct toxicological profiles of its components.

Overdose Presentation and Symptoms

Overdose of the Acetaminophen component carries a serious risk of delayed hepatic toxicity, which can progress to liver failure and death. Initial signs may be absent, nonspecific, or delayed by up to 24 hours, presenting as nausea, vomiting, abdominal pain, or general malaise. Overdose of the Dextromethorphan and Pseudoephedrine components is associated with immediate symptoms such as excitement, nervousness, confusion, seizures, coma, or cardiovascular effects like tachycardia and high blood pressure.

Severe Outcomes and Complications

The most severe documented outcomes include acute liver failure and death. Additionally, high doses of Pseudoephedrine are linked to rare, potentially life-threatening cerebrovascular events, specifically Posterior Reversible Encephalopathy Syndrome (PRES) and Reversible Cerebral Vasoconstriction Syndrome (RCVS). The risk of liver damage is noted to be increased in adults who regularly consume three or more alcoholic drinks daily.

Mandated Emergency Action

Regulatory documents mandate that users seek immediate medical attention or contact a Poison Control Center right away, even if a person appears well. Quick medical care is critical because a specific antidote, N-acetylcysteine, is available for the Acetaminophen component and is most effective when administered promptly. Individuals must immediately stop taking the medication and seek treatment if symptoms of cerebrovascular events, such as a sudden, severe headache, confusion, or visual disturbances, develop.

Therapeutic Uses of Daleron COLD3

What Daleron COLD3 Treats: Main Uses and Benefits

Daleron COLD3 is a combination medication applied in symptomatic management for acute cold and flu-like illnesses. Its primary role is to provide supportive relief across several key symptom domains that often occur together during these conditions.

This medication is commonly used to help manage the overall burden of symptoms associated with acute episodes, including headaches, muscle aches, fever, and nasal congestion. These formulations are designed for temporary support, which contributes to improved comfort during periods when symptoms become more noticeable. It is applied in situations where symptoms create noticeable physiological strain and interfere with daily comfort.

“This multi-symptom approach supports the patient during difficult, symptomatic episodes.”

Quick Fact: Assistance with Combined Symptoms This medication may be part of symptomatic management when a patient experiences a cluster of symptoms (pain, fever, congestion) that necessitate comprehensive, short-term symptomatic assistance.

Regulatory References

  1. Health Canada Non-prescription Oral Adult Cough, Cold and Flu Labelling Standard

Eligibility and Restrictions for Use

Official Eligibility and Contraindicated Populations

Daleron COLD3 is subject to strict eligibility rules based on governmental regulatory documentation. Use is strictly contraindicated in several population groups and specific clinical conditions.

Classification Population/Condition
Contraindicated Children under 12 years of age
Contraindicated Individuals who are pregnant or breastfeeding
Contraindicated Patients with known hypersensitivity to any of the active substances (paracetamol, pseudoephedrine, dextromethorphan) or excipients
Contraindicated Patients with severe liver or kidney problems
Contraindicated Patients with severe cardiovascular diseases (e.g., severe hypertension, severe ischemic heart disease, history of stroke/myocardial infarction)
Contraindicated Patients with diabetes, hyperthyroidism, glaucoma, pheochromocytoma, or a history of seizures
Contraindicated Concurrent use with Monoamine Oxidase (MAO) inhibitors (or within two weeks of stopping) or other sympathomimetics (e.g., pseudoephedrine, ephedrine, phenylephrine)

Restricted or Conditional Use: The medicine should be used with caution in patients with moderate liver or kidney impairment, systemic lupus erythematosus, haemolytic anaemia, or an enlarged prostate (due to risk of urinary retention). Only individuals 12 years of age and older who do not meet any of the absolute contraindications are considered eligible for use, as defined by regulatory labels.

What should I know about interactions with other medicines?

Daleron COLD3 Interactions with other medicines and products

Daleron COLD3 is a combination medicine containing Paracetamol, Pseudoephedrine, and Dextromethorphan. The official regulatory labeling documents several categories of interactions that may affect its safety or effectiveness.


Contraindicated and High-Risk Combinations

Classification Interacting Agents
Strictly Forbidden Monoamine Oxidase Inhibitors (MAOIs), including non-selective and selective types. A mandatory 14-day washout period is required after stopping an MAOI before using this product.
Strictly Forbidden Other sympathomimetic agents (e.g., certain decongestants, appetite suppressants) and specific ergot derivatives (e.g., dihydroergotamine) due to the risk of severe cardiovascular events related to the Pseudoephedrine component.
Avoid Any other products containing Paracetamol to prevent exceeding the maximum daily dose and risking hepatotoxicity.

Clinically Significant Pharmacokinetic and Pharmacodynamic Interactions

  • Enzyme Inhibitors: Medicines that inhibit the CYP2D6 enzyme can significantly increase Dextromethorphan levels. Examples include quinidine and certain antidepressants.
  • Oral Anticoagulants: Regular, prolonged use of Paracetamol may alter the effects of agents like Warfarin, necessitating careful monitoring.
  • CNS Depressants: Concurrent use with substances that depress the central nervous system, including alcohol, increases the risk of enhanced sedation and Dextromethorphan-related side effects. Alcohol also increases the risk of Paracetamol-related liver damage.
  • Absorption Interference: Colestyramine can reduce the absorption of Paracetamol, requiring an appropriate time separation between doses. Medicines that alkalinize the urine may decrease the elimination rate of Pseudoephedrine, increasing its concentration.

Mechanism of Action

Central Control of Temperature and Pain Signaling

Acetaminophen acts within the central nervous system (CNS) by inhibiting key Cyclooxygenase (COX) enzymes to limit the production of the signaling molecule PGE2 in the hypothalamus and descending pain pathways. This primary mechanism modulates the thermoregulatory set point and decreases the transduction of nociceptive signals. This results in the physiological consequence of altered central temperature regulation.

Modulating the Brainstem Cough Reflex Arc

Dextromethorphan modulates neural activity in the medullary cough center through specific receptor interactions, including antagonism of NMDA receptors and agonism of sigma1 receptors. This central modulation of the reflex mechanism increases the threshold required for afferent signals to trigger the medullary reflex.

Localized Sympathetic Vascular Tone Adjustment

Pseudoephedrine engages mechanisms that regulate peripheral processes by acting on alpha1-Adrenergic receptors (alpha1-ARs) on vascular smooth muscle in the nasal mucosa. This direct and indirect stimulation induces contraction of blood vessels, which reduces local blood volume and decreases the volume of tissue fluid. This physiological consequence is the localized reduction of mucosal tissue volume.

Dosage and Administration Information

How Daleron COLD3 is Used: Official Administration Guidelines

Daleron COLD3 is intended for short-term symptomatic use according to specific, standardized instructions.

This medication must be administered via the oral route using the film-coated tablet form.

Official Dosing and Schedule

Category Regulatory Dosing Instructions
Target Population Adults and adolescents aged 12 years and older.
Single Dose 1 or 2 tablets per dose.
Dosing Interval A minimum of 4 hours must separate doses.
Maximum Dose Do not exceed 4 doses (a total of 8 tablets) in any 24-hour period.

Usage Constraints and Duration

Administration of Daleron COLD3 is subject to specific constraints to ensure proper use.

  • Duration Limit: The medication is for short-term assistance only and should not be used for longer than 3 days without consulting a health professional.
  • Paracetamol Restriction: Due to the risk of exceeding the maximum safe dose, this product must not be taken concurrently with any other medicine containing paracetamol.
  • Pediatric Use: The product is not suitable for use in children under 12 years of age.

These instructions define the appropriate method, frequency, and time limitations for the use of Daleron COLD3, directly structuring the administration protocol.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Daleron COLD3

Evidence for Symptomatic Management of the Common Cold

Research examining multi-symptom combination medicines like Daleron COLD3 typically was studied for short-term symptomatic change in conditions characterized by fluctuating or episodic manifestations, such as the common cold. These investigations often involve Randomized Controlled Trials (RCTs), where the medicine was evaluated in groups of participants and compared against a placebo or the combination's individual active ingredients. The studies explored outcomes related to physical discomfort, primarily measuring the change in a Total Symptom Score (TSS), which is a combined score for various symptoms like headache, fever, muscle aches, and nasal congestion. This evidence contributes to the broader evidence landscape regarding how these three components was studied for the management of multiple simultaneous symptoms.

Evidence for Symptomatic Management of Flu-like Illnesses

Similar research approaches was applied in studies examining patient-reported experiences in individuals with flu-like symptoms. These studies monitored the combination for its use in conditions involving periods of heightened symptoms such as fever, body aches, and fatigue. Research was evaluated in adult populations experiencing these acute or disruptive episodes to assess symptomatic responses.

Duration of Follow-up and Long-Term Research

The majority of clinical trials for this type of combination medicine primarily focus on research exploring short-term symptom changes. Assessments often involve evaluations at specific short time points, and then follow-up for the duration of a treatment course, typically ranging from 3 to 10 days. Due to this focus, long-term effects are not fully established. Long-term outcomes, including data for sustained patterns beyond the acute treatment period, are not fully characterized.

Research in Specific Populations

Research was studied for its relevance in adult populations, with some studies also including adolescents (typically 12 years and older). Data for certain groups remain insufficient. For instance, research is limited or insufficient for very young children or older adults. Furthermore, the comparative evidence is lacking for patients with specific comorbid conditions, as these individuals are frequently excluded from the core clinical trials to ensure focused results. Therefore, the results apply only to the populations studied.

What is Still Uncertain About the Research Base

While research contributes to understanding symptom patterns, there are several areas where certainty remains low. Sample sizes were modest in some studies, and the evidence quality varies across different trials. The Fixed-Dose Combination (FDC) design is noted as a trial limitation because the studies monitored the components at a fixed, predefined ratio. Subgroup findings are uncertain, and research does not determine whether an individual will respond similarly outside of the specific, controlled conditions under which studies were conducted.

Key Studies & References

  1. Rationale for Treatment of Common Cold and Flu with Multi-Ingredient Combination Products for Multi-Symptom Relief in Adults
  2. Guidance document: Non-prescription Oral Adult Cough, Cold and Flu Labelling Standard - Health Canada

Frequently Asked Questions (FAQ)

Common questions about Daleron COLD3 (FAQ)

Q: What is the onset of action for this medicine?

A: Official label information suggests that the individual active ingredients, such as Acetaminophen and Pseudoephedrine, may begin to show effects within 30 minutes to one hour. Combination products are often studied for short-term symptom changes, with the duration of effect often ranging from 4 to 6 hours.

Q: How do the three ingredients work together to relieve symptoms?

A: Daleron COLD3 is formulated as a triple-action medicine to manage the primary discomforts of cold and flu simultaneously. According to official product information, it combines Acetaminophen, an analgesic (pain reliever) and antipyretic (fever reducer), with Dextromethorphan, an antitussive (cough suppressant), and Pseudoephedrine, a decongestant that helps clear nasal passages.

Q: What happens if I accidentally take more than the maximum dose?

A: Overdosing on this medication is a critical medical emergency. Regulatory documents strongly emphasize that taking more than the maximum recommended dose can lead to severe, potentially fatal liver damage due to the Acetaminophen component. Official labels strongly recommend that medical attention be sought immediately or a poison control center be contacted right away, even in the absence of obvious symptoms.

Q: Is Daleron COLD3 safe to take during pregnancy?

A: Regulatory guidance strictly contraindicates the use of Daleron COLD3 during pregnancy. Due to potential safety concerns outlined in official product information, the product information states that individuals who are pregnant or are planning to become pregnant should speak with a healthcare professional regarding appropriate alternatives.

Q: How should I dispose of the medicine if there is no take-back program?

A: While official environmental disposal protocol prioritizes local drug take-back programs, alternative methods exist if those are unavailable. If a take-back program is unavailable, official guidelines suggest removing the tablets from their original container, mixing them with an unappealing substance, such as coffee grounds or cat litter, and sealing them in a bag before disposal with household trash. They should not be flushed down the toilet unless the product is on the official 'flush list'.

Q: What are the ingredients in Daleron COLD3 besides the active ones (excipients)?

A: In addition to the three active substances (Acetaminophen, Dextromethorphan, and Pseudoephedrine), regulatory documents list inactive ingredients, known as excipients. These substances are necessary to form the tablet, ensure its stability, aid in drug delivery, and provide the film coating. Examples often include microcrystalline cellulose and magnesium stearate.

How should Daleron COLD3 be stored and disposed of?

How to Store and Dispose of Daleron COLD3?

Official regulatory guidelines define specific requirements for the storage, protection, and disposal of Daleron COLD3 film-coated tablets.

Official Storage Requirements

The medicine must be stored at controlled room temperature, typically defined as below 25 C. To maintain product stability, tablets should be kept in the original package to ensure protection from moisture and direct light. The product must not be exposed to freezing temperatures or refrigeration.

Storage Classification Requirement
Temperature Store below 25 C (Do not refrigerate or freeze)
Protection Keep in original container; protect from moisture and light
Safety Mandatory: Keep out of the sight and reach of children

Official Disposal Rules

Disposal must adhere to Official Environmental Disposal Protocol. Expired or unused Daleron COLD3 must be discarded in accordance with local drug take-back or pharmaceutical waste programs. The product must not be thrown into household trash or disposed of via wastewater, as per environmental guidelines.

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

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