Strepsils Cool

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Strepsils Cool

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Medically reviewed

Marina Burgos

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Strepsils Cool

Quick Facts

Property Description
Active Ingredients Amylmetacresol, Dichlorobenzyl Alcohol, Levomenthol
Form Lozenge (Throat Pastille)
Pharmacological Class Local Antiseptic and Analgesic
Common Use Symptomatic relief of mouth and throat discomfort
Origin Synthetic and Naturally Derived/Analog

Defining Strepsils Cool: A Localized Oromucosal Preparation

Strepsils Cool is an Over-The-Counter (OTC) Fixed-Dose Combination Product (FDC) presented as a solid lozenge designed for localized oromucosal administration. This formulation is classified as a Compound Throat Preparation, optimized to dissolve slowly and continuously release its active components into the mouth and pharynx. Strepsils Cool is recognized specifically for its intense cooling sensation, a distinctive feature achieved through a calibrated dose of Levomenthol. The physical form of the throat pastille is essential for maintaining prolonged contact between the ingredients and the affected mucosal surface, thereby maximizing the local therapeutic and demulcent action.

Active Ingredients and Pharmacological Classification

The preparation's efficacy is founded on three distinct active ingredients: the primary antiseptic components, Amylmetacresol and Dichlorobenzyl Alcohol, and the cooling agent, Levomenthol. The synergistic combination of Amylmetacresol and Dichlorobenzyl Alcohol is supported by pharmacological data, confirming its activity against common oral and pharyngeal surface microorganisms. The antiseptic agents provide a measurable reduction in surface bacterial load during use. This means the medicine is formulated to help reduce the number of microbes on the surface of the throat. The overall pharmacological classification groups the product as a Local Antiseptic and a Local Analgesic, reflecting the dual therapeutic intent of its formulation.

General Purpose of the Antiseptic and Cooling Combination

The preparation's core general purpose is to provide simultaneous, targeted symptomatic relief and surface disinfection for acute discomfort in the throat and mouth. The combination is engineered to deliver a dual mechanism: the antiseptic action works to reduce the local microbial load on the throat's surface, while the Levomenthol component provides an immediate, noticeable cooling sensation. Levomenthol acts as a mild local anesthetic to reduce pain and provide symptomatic relief. This integrated approach ensures the patient receives both surface action and fast, localized comfort, often utilized in scenarios involving common throat irritation or minor oral discomfort.

What side effects are possible with Strepsils Cool?

Possible Side Effects and Safety Information

The safety profile of lozenges containing Amylmetacresol, Dichlorobenzyl Alcohol, and Levomenthol is based on the official classifications and reports documented in regulatory sources.

Adverse reactions are generally classified as "Not known" (meaning frequency cannot be estimated from the available data), reflecting the low incidence of reported effects at over-the-counter doses during short-term use.


Officially Documented Adverse Reactions

The most commonly reported adverse events relate to the immune system and the gastrointestinal tract. Reactions are categorized in regulatory documents under Immune System Disorders, Gastrointestinal Disorders, and Skin and Subcutaneous Tissue Disorders.

These reactions include:

  • Hypersensitivity reactions, which may manifest as skin symptoms such as rash or urticaria.
  • Gastrointestinal symptoms, including abdominal pain and nausea.
  • Oral discomfort localized to the mouth or throat.

Safety Restrictions and Contraindications

The medicine is contraindicated for individuals with known hypersensitivity to any of its active components or excipients. A specific regulatory warning notes that the excipient Sulphur Dioxide (E220) may, in rare instances, cause severe hypersensitivity or bronchospasm.

Use is not recommended as a precaution during pregnancy or breast-feeding due to limited or unavailable safety data. The product is also not suitable for children under six years of age and is contraindicated for patients with rare hereditary problems of sugar malabsorption, such as fructose intolerance.

Official labels also state that while adverse effects are associated with short-term use, the possibility of additional adverse effects should be considered during long-term treatment.

Overdose and Emergency Response

Overdose and when to seek help

Official regulatory documentation for this lozenge formulation consistently defines the profile of an overdose event. Overdosage of the active ingredients—Amylmetacresol, Dichlorobenzyl Alcohol, and Levomenthol—is classified as an unlikely event and is officially stated as not expected to result in serious side effects. This determination is the basis for the regulatory guidance on management and the necessary response.


Documented Overdose Manifestations and Actions

The prescribing information outlines specific clinical signs and required procedures based on the known safety profile:

Classification Official Regulatory Statement
Expected Clinical Sign Gastrointestinal discomfort is the only specific problem expected.
Severity Classification Overdose is not expected to present serious side effects.
Mandated Management Treatment in the event of an overdose should be symptomatic.
Antidote or Monitoring No specific antidote or continuous observation requirements are listed in the official labeling.

In scenarios of potential over-exposure, the regulatory guidance focuses on symptomatic support for the documented gastrointestinal manifestation. The low-risk classification means the regulatory text does not mandate immediate contact with emergency medical services or specific hospital monitoring requirements. All officially required actions center on providing supportive care for any experienced symptoms.

Therapeutic Uses of Strepsils Cool

Strepsils Cool is commonly used across therapeutic domains involving acute, localized discomfort in the throat and mouth, providing symptomatic support to help ease the overall burden of distress. The product is relevant for symptomatic relief and is applied in clinical settings that involve acute or unstable symptom patterns related to inflammatory or irritative states.

The lozenge is considered relevant for easing symptoms that interfere with daily comfort, including soreness, throat pain, and the discomfort associated with swallowing during acute episodes. This medication is applicable in conditions characterized by periods of heightened symptoms, such as the initial phases of pharyngitis or temporary postoperative throat soreness, and is often used during phases when symptoms become more noticeable.

Symptom Focus: Sore Throat and Swallowing Discomfort

The combination of ingredients provides local analgesic support, which may assist with maintaining a sense of stability when symptoms are more noticeable, and offers a cooling sensation that contributes to improved comfort. The preparation is a non-specific treatment intended for symptomatic relief. The product may help support patients during difficult episodes by easing discomfort and addressing symptoms linked to irritative states.

Eligibility and Restrictions for Use

The eligibility for Strepsils Cool is strictly defined by regulatory guidelines, focusing on age and specific pre-existing conditions.

Eligibility Scope

Category Official Regulatory Status
Populations for whom use is allowed: Adults, the elderly, and children 12 years and over are permitted for use under standard labeled conditions.
Populations for whom use is not recommended: Use is not suitable for children under 12 years. The medicine is not recommended for breastfeeding mothers and is preferable to avoid during pregnancy due to limited data.
Populations for whom use is contraindicated: Patients with known hypersensitivity to the active substances (Amylmetacresol, Dichlorobenzyl Alcohol, Levomenthol) or any excipient are strictly contraindicated.

Eligibility Restrictions

Official labeling requires specific exclusions based on the lozenge's excipient content:

  • Individuals with rare hereditary problems such as fructose intolerance, glucose-galactose malabsorption, or sucrase-isomaltase insufficiency must not use the product.
  • The sucrose and glucose content should be taken into account for patients with Diabetes Mellitus.
  • The product is recommended for a maximum of 3 days of use.

Note: This specific formulation is designated as not suitable for children under 12 years due to the calibrated concentration of Levomenthol.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The official regulatory profile for Strepsils Cool, which contains the active ingredients Amylmetacresol, Dichlorobenzyl Alcohol, and Levomenthol, is characterized by the absence of documented significant interactions.

Interaction Scope

The regulatory documentation defining the product’s safety and usage parameters consistently reports that no clinically significant interactions are known to occur with other medicinal products. This classification is primarily attributed to the preparation’s localized oromucosal route of administration, which results in very low systemic exposure of the active components.

Interaction Entity Official Regulatory Status
Contraindicated Combinations No medicinal products are formally listed as contraindicated due to an interaction risk.
Pharmacokinetic Interactions No interactions involving metabolic enzymes (e.g., CYP enzymes) or drug transporters are documented as clinically significant.
Timing Requirements No mandatory timing or separation requirements are specified for co-administration with other medicines.
Food, Alcohol, or Herbal Interactions No clinically significant interactions with food, alcohol, or herbal products are known.

Interaction Summary

Official government health authority summaries of product characteristics confirm that this fixed-dose combination lozenge has no known drug–drug or substance interactions that modify the exposure or effect of either the lozenge's components or other co-administered medicines. Consequently, no formal restrictions, timing rules, or exposure modifications are documented in the official regulatory labeling.

Mechanism of Action

The preparation's action is defined by two complementary, peripheral pharmacodynamic domains localized to the oropharyngeal mucosa.

Modulation of Peripheral TRPM8 and NaV Channels

This domain involves the rapid and localized interaction of Levomenthol with the sensory nervous system. Levomenthol acts as an agonist on the Transient Receptor Potential Melastatin 8 (TRPM8) ion channel , a receptor specialized for cold sensation, which initiates a competing afferent signal that attenuates baseline nociceptive signaling via counter-irritation. Concurrently, all active ingredients modulate and block Voltage-Gated Sodium Channels (NaV) on peripheral nerve endings, thereby increasing the threshold for neural signal transmission and leading to a reduced rate of afferent signal propagation.

Disruption of Microbial Cell Integrity on the Oromucosal Surface

This mechanistic domain centers on the non-specific physiochemical action of the antiseptic combination, Amylmetacresol (AMC) and Dichlorobenzyl Alcohol (DCBA). These components exhibit enhanced action by disrupting the structural integrity of microbial cell membranes and denaturing essential proteins of surface-level microorganisms . This localized action is structurally constrained to the oropharyngeal mucosa and results in an acute reduction of microbial viability present on the surface.

Dosage and Administration Information

General Principles of Administration

Strepsils Cool is designated for oromucosal administration, meaning it is applied locally within the mouth and throat. The product's usage protocol requires the lozenge to be dissolved slowly in the mouth rather than being chewed or swallowed whole. This procedural requirement facilitates the continuous release of the active ingredients directly onto the affected mucosal surface, consistent with its formulation as a compound throat preparation.


Standard Dosing and Frequency

For adults, the standard single dose involves the administration of one lozenge. The dosing schedule permits repeated administration at intervals of every two to three hours. An explicit quantitative constraint is placed on overall intake, specifying that an adult is not to consume more than a maximum of twelve lozenges in any twenty-four-hour period.

Population-Specific Regimens

Restrictions exist for younger individuals. The preparation is not designated for administration to children under 12 years of age. For adolescents aged 12 years and over, the frequency remains one lozenge every two to three hours, but the maximum daily intake is restricted to eight lozenges per 24 hours. No dosage reduction is typically required for older adults.


Duration of Use Protocol

The administration course is generally recommended not to exceed a maximum duration of three consecutive days. This procedural structure reflects the practice of using the lowest effective dose for the shortest duration necessary.

Recent Clinical Evidence

Recent Clinical Evidence

Action and Efficacy Studies

Research has investigated the function of the drug's two active components, Amylmetacresol (AMC) and 2,4-Dichlorobenzyl Alcohol (DCBA). Studies have explored the antiseptic properties of this combination in individuals with throat discomfort and minor oral infections.

  • Controlled Clinical Trials A Phase III randomized, controlled trial involving participants with acute sore throat evaluated whether the combination of AMC and DCBA had an effect on pain severity, measured using a Visual Analogue Scale (VAS). The study design aimed to assess changes in throat discomfort over a specific time period following administration.

  • Onset and Symptom Management In clinical trials examining throat discomfort, the research noted that use of the lozenge was associated with changes in self-reported pain intensity. The study design also evaluated the administration method to examine potential effects on the local duration of symptom relief.


Safety and Tolerability

Research has focused on the lozenge's safety profile in the general adult population. Trials included participants of various age groups, and research assessed the tolerability of the components.

Population Study Focus Key Finding Summary
Adults (18-65) Adverse event frequency The study did not find a statistically significant difference in severe adverse events when comparing the active lozenge to placebo.
Pediatric Cohorts Safety and dosing studies Studies examining safety in younger cohorts remain limited, with most research focusing on the adult population.
All Participants Common side effects The adverse events reported most often included temporary numbness of the tongue or mouth irritation.

Comparative Research

Research has compared the AMC/DCBA combination with other lozenge formulations to evaluate potential differences in local effect. Studies exploring the duration of the anesthetic effect of the formulation versus other agents are ongoing.

Key Studies & References

  1. ISRCTN00003567: A clinical study to assess the effectiveness of Strepsils sore throat lozenges (Trial Registry)
  2. Scientific discussion Strepsils Sugar Free Lozenges Amylmetacresol 600 micrograms 2,4-Dichlorobenzyl alcohol 1.2 mg PA 979/62/1 - HPRA (Regulatory Document)

Frequently Asked Questions (FAQ)

Common questions about Strepsils Cool (FAQ)


Q: How does Strepsils Cool actually work to relieve a sore throat?

Strepsils Cool's action relies on a combination of two components. The antiseptic components, Amylmetacresol and Dichlorobenzyl Alcohol, function as mild antiseptics which act against surface-level bacteria and viruses in the mouth and throat. Concurrently, Levomenthol provides a mild local anesthetic and cooling effect intended for symptomatic pain relief.


Q: How should I store the Strepsils Cool lozenges?

The official product information states that the lozenges must be stored out of the sight and reach of children. Storage conditions require a temperature not exceeding 25°C (or 30°C in certain regions), and they should be protected from humidity and direct light.


Q: Is it safe to use Strepsils Cool during pregnancy or while breastfeeding?

Regulatory documents indicate that use of the lozenge is generally preferable to avoid during pregnancy due to the limited safety data available. A risk to the newborn or infant cannot be definitively excluded because information on excretion in human milk is insufficient to establish safety during breastfeeding.


Q: How long does it take for Strepsils Cool to start working?

Studies and official information indicate that the onset of relief from throat soreness and difficulty swallowing has been observed rapidly. Specifically, relief has been observed within a period of 1 to 5 minutes following administration in clinical trials.


Q: What are the warnings signs of an allergic reaction to Strepsils Cool?

Hypersensitivity (allergic) reactions are listed as a possible adverse event in the regulatory documentation. The lozenge contains Sulphur Dioxide (E220), which may rarely cause severe allergic reactions, including a tightening of the airways known as bronchospasm. Difficulty breathing or swelling of the face, throat, or tongue are signs that require immediate medical attention.

How should Strepsils Cool be stored and disposed of?

Official Storage and Disposal Requirements

Strepsils Cool lozenges must be stored under specific conditions defined in regulatory documents to ensure product stability and safety.

Storage Scope Official Requirement
Temperature Store at temperatures not exceeding 25 C for long-term storage, and in some regions, below 30 C.
Handling/Protection Keep out of the sight and reach of children. Protect the contents from humidity and direct light.
Packaging Store in the original container or blister pack and maintain the packaging integrity.

Disposal Instructions

Disposal must align with pharmaceutical waste protocols. Regulatory guidance states that the medicine must not be disposed of via wastewater or routine household waste to protect the environment. Patients should ask a pharmacist or utilize a drug take-back program for disposal of expired or unused lozenges. In the absence of a take-back option, the medicine may be mixed with an undesirable substance (e.g., dirt, coffee grounds) and sealed before placing in the household trash, as per national guidelines.

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

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