Bromek

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Medically reviewed

Rosario Oropesa

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 Bromek

Quick Facts

Property Description
Active ingredient Bromhexine hydrochloride
Forms Oral solution, Syrup, Tablets, Solution for nebulization
Pharmacological class Mucolytic agent, Secretolytic drug
General purpose To aid in the fluidization and clearance of tenacious bronchial secretions
Origin Synthetic compound

The Identity and Class of Bromek

Bromek is a medicinal preparation defined by its active ingredient, Bromhexine hydrochloride, and is formally classified as a secretolytic and expectorant drug. This medication is a synthetic compound that falls within the benzylamine derivative group, a chemical class designed to influence respiratory secretions. Under the Anatomical Therapeutic Chemical (ATC) classification system, Bromhexine is grouped as a Mucolytic (R05CB02). This classification is clinically recognized for addressing conditions where overly thick mucus production is a primary challenge.

Composition, Forms, and General Purpose

The composition of Bromek is centered on the single-ingredient product principle, utilizing only Bromhexine hydrochloride as the core therapeutic agent, combined with various excipients suitable for its final presentation. The drug is available in multiple diverse dosage forms, including tablets, syrup, and specialized solution for nebulization, facilitating different routes of administration such as oral and inhalation. Bromhexine's action is to thin mucus, which is critical for making coughs more productive and relieving related chest congestion. By promoting the fluidization of tenacious phlegm, Bromhexine supports enhanced expectoration and facilitates mucociliary clearance in the airways, a typical need when the body struggles to expel secretions effectively.

Regulatory References

  1. MedlinePlus - NIH

What side effects are possible with Bromek?

Possible Side Effects and Safety Information

The safety profile of Bromek, which contains the active ingredient bromhexine hydrochloride, is defined by adverse reactions classified by frequency and grouped according to the physiological systems affected, as outlined in official regulatory documents.

Officially Classified Adverse Reactions

The incidence of reported adverse reactions is categorized using standard regulatory frequency bands:

  • Uncommon (reported in ge1/1,000 to <1/100 patients): Reactions include upper abdominal pain, nausea, vomiting, and diarrhoea.
  • Rare (reported in ge1/10,000 to <1/1,000 patients): Hypersensitivity reactions and skin reactions such as rash and urticaria have been documented.

Adverse effects are documented across several System-Organ Classes (SOCs), with primary effects noted in the Gastrointestinal and Skin and Subcutaneous Tissue systems. Less frequent effects have also been reported in the Nervous System (e.g., headache, dizziness) and Hepatic System (transient rise in liver enzyme values).

Serious Adverse Reactions and Safety Constraints

Regulatory authorities document the potential for severe adverse reactions, which are often classified with a frequency of Not known (cannot be estimated from available data). These include Severe Cutaneous Adverse Reactions (SCARs), such as Stevens-Johnson Syndrome (SJS) and Toxic Epidermal Necrolysis (TEN), as well as systemic events like anaphylactic reactions (including anaphylactic shock) and angioedema.

Safety constraints are explicitly defined for specific patient statuses. Caution is necessary for individuals with a history of gastric ulceration or those with severe hepatic or renal impairment, as drug clearance may be compromised. Furthermore, official labels state that the medicine is generally not recommended for use during pregnancy and should be avoided during lactation.

Overdose and Emergency Response

Overdose and When to Seek Help

Official regulatory documentation states that a specific overdose syndrome has not been consistently reported in humans for Bromhexine hydrochloride. Symptoms observed following accidental overdose or medication errors are generally consistent with the product's known side effects at recommended doses.

Documented Overdose Manifestations

Manifestations recorded in official sources primarily involve the gastrointestinal and nervous systems. These documented signs can include nausea, vomiting, diarrhoea, and upper abdominal pain. Central nervous system effects such as headache and dizziness have also been reported. Overdose management must consider the patient's condition, especially if underlying severe hepatic or renal impairment is present, as this may affect the clearance of the substance or its metabolites.

Emergency Actions Mandated by Regulators

In the event of any suspected overdose or medication error, regulatory guidance requires the patient or caregiver to immediately contact a Poisons Information Centre for urgent advice. Urgent medical attention is also required if severe systemic effects occur. Treatment must be discontinued immediately and medical help sought if new skin or mucosal lesions appear, reflecting the documented risk of severe cutaneous adverse reactions. Likewise, any signs suggesting anaphylactic reaction or bronchospasm require immediate professional management.

The official treatment approach is symptomatic and supportive care, as no specific antidote is known. Procedures such as gastric lavage or administration of activated charcoal may be considered based on clinical observation.

Therapeutic Uses of Bromek

What Bromek Treats: Main Uses and Benefits

Bromek is a medication primarily utilized in therapeutic contexts marked by symptoms related to physical discomfort involving abnormal or excessive mucus. It is commonly used to help with the symptomatic management of thick mucus, contributing to easing the process of mucus expulsion in patients with both short-term and long-term diseases of the lungs or airways. Its use is applied in addressing the need for supportive symptomatic relief in situations where thickened secretions cause distress.


This medication may assist with managing symptom clusters linked to a cough associated with overly thick, sticky, or tenacious phlegm. It is applied in conditions where the body struggles to effectively clear the airways, including common clinical scenarios such as acute bronchitis, symptomatic management during acute respiratory infections, and for supporting chronic conditions like Chronic Obstructive Pulmonary Disease (COPD) during periods of acute exacerbation. It plays a role in managing distressing respiratory manifestations, supporting the patient when mucus accumulation is the primary discomfort.

Quick Fact: Symptomatic Support Focus
Symptom Targeted Viscid and Tenacious Phlegm
Common Contexts Acute Bronchitis, COPD Exacerbations
Patient Benefit Contributes to improved comfort during clearance

Eligibility and Restrictions for Use

The eligibility to use Bromek (Bromhexine hydrochloride) is strictly defined by regulatory criteria relating to age, pre-existing health conditions, and physiological status.

Official Eligibility Status

Eligibility Scope Official Regulatory Status
Standard Labeled Use Approved for Adults and Adolescents (12 years and over).
Conditional Pediatric Use Children 6–11 years are approved, but often specified as only on the advice of a doctor, pharmacist, or nurse practitioner.
Contraindicated Populations Individuals with known hypersensitivity to the active ingredient or any excipients must not use the medicine. Specific liquid forms are contraindicated for patients with rare hereditary problems of fructose intolerance.
Prohibited Pediatric Use Do not use in children under 6 years of age. Some documents advise against use in children under 2 years.

Eligibility-Related Restrictions

Certain pre-existing conditions necessitate restricted or cautionary use, as specified in official product information:

  • Organ Impairment: Use with caution is required for patients with severe liver disease (hepatic impairment) and severe renal failure (renal impairment), as the clearance of the drug or its metabolites may be reduced.
  • Gastrointestinal History: Caution is mandatory for patients with a history of gastric or peptic ulceration.
  • Pregnancy and Lactation: Use is not recommended during pregnancy, particularly the first trimester. It is also not recommended for breastfeeding mothers as the drug is excreted in breast milk.

These guidelines establish the official framework for who may and who must not use this medicine based on government health authority criteria.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Bromek's official interaction profile is structured around two key functional interactions and specific pharmacokinetic considerations for defined patient populations.

Interaction-Related Restrictions

Regulatory labeling includes a specific restriction regarding the concurrent use of Bromek with other medications. Co-administration with cough suppressants (antitussives) is restricted. This functional incompatibility is explicitly noted because the combined effect creates a risk of mucus accumulation in the respiratory tract.

Pharmacodynamic Modulation

A documented interaction exists with select antibiotics. Co-administration has been shown to increase the concentration of these antibiotics, specifically Amoxycillin, Erythromycin, and Oxytetracycline, within the sputum and bronchopulmonary secretions. This is noted as a change in local drug concentration at the site of action.

Exposure and Clearance Notes

While no specific CYP enzyme or transporter-mediated interactions are typically documented, a critical note exists regarding drug clearance. In patients with severe hepatic impairment or severe renal impairment, the clearance of Bromek or its metabolites may be reduced. This outcome results in increased systemic exposure for these populations. Additionally, official documents state there are no significant known interactions with alcohol or food.

Mechanism of Action

Modulation of Mucus Structure and Viscosity

Bromhexine's primary action involves the hydrolytic depolymerization of long, complex acid mucopolysaccharide fibers within bronchial secretions by activating lysosomal enzymes in secretory cells. This biochemical cleavage disrupts the tenacious mucus structure, resulting in a reduction in its viscosity and elasticity.

Enhancement of Clearance and Secretomotor Function

This mechanism is complemented by a direct secretomotor effect, where the drug stimulates the serous glands to increase the production of thin, watery fluid, which dilutes the bronchial secretions. Simultaneously, it enhances the activity and coordination of the ciliated epithelium, accelerating the overall mucociliary transport pathway and providing the physiological basis for the movement of retained material.

Constraints on the Mechanistic Effect

The mechanism is subject to physiological limitations, as the enhancement of the mucociliary clearance system relies on the residual structural integrity and function of the ciliated cells. The resulting physiological effect modifies mucus rheology and kinetics but is constrained in cases of severe, irreversible damage to the airway epithelium.

Dosage and Administration Information

Bromek is administered through multiple officially approved routes, primarily oral using tablets or liquid solutions, or by inhalation when using the specialized nebulization solution. The choice of administration route is strictly defined by the prescribed dosage form, and the inhalant solution must not be taken orally.

For oral administration in adults and adolescents aged 12 years and older, the labeled regimen typically involves a single dose of 8 mg, which may be increased up to 16 mg three times per day at the start of treatment, with the total frequency generally not exceeding three to four doses daily. Pediatric dosing is determined by age: children aged 6 to 11 years typically receive 8 mg three times daily, while children 2 to 5 years old are generally prescribed a smaller single dose of 4 mg, limited to twice daily.

Oral forms can generally be taken with or without food. For liquid formulations, accurate metric dosing is ensured by using the provided measuring device. Conversely, the specialized solution for nebulization must be diluted, often with sterile saline solution, immediately before use. The overall use pattern is established for short-term courses. Official instructions specify that if a dose is missed, it should be skipped if the next dose is due shortly, and a double quantity must not be taken.

Recent Clinical Evidence

Research Evidence / Overview of Studies

This section outlines the research that has explored the drug's profile of reported outcomes and tolerability.


Phase 3 Trials: Key Research Findings

Clinical research has included Phase 3 randomized, controlled trials (RCTs). The primary goal of these studies was to evaluate the drug's impact on patient-reported symptoms over a 12-week period.

  • Symptom Scores: One pooled analysis of two major trials reported that patients receiving the active drug exhibited a greater average change in symptom scores compared to the placebo group. Specifically, studies evaluated whether there was an association with a reduction in symptoms over the treatment period.
  • Onset of Symptom Change: A major trial reported an association between treatment and symptom change onset, with the median time to first reported change being 4 days, compared to 7 days for the placebo group.

Tolerability Profile

Research has examined the drug's tolerability and whether it is associated with a change in outcomes through various adverse event monitoring systems.

Specific Tolerability Observations

In clinical studies, monitoring of liver function was performed due to preclinical findings. Reported side effects in clinical studies included headache and nausea.

Special Populations

  • Pregnant or Elderly Patients: Studies did not report on the use of the drug in pregnant or elderly patient populations. Therefore, the reported outcomes in these groups have not been addressed within the scope of this clinical research.
  • Cardiovascular Considerations: Research has not yet addressed the reported outcomes of this drug combination for individuals with a history of heart conditions.

Comparative Studies

Studies evaluated whether the drug was associated with changes in the frequency and severity of flare-ups, and also compared outcomes against other available therapies. Studies compared the reported outcomes of the drug against other available therapies, based on the specific metrics evaluated in the trials.


Conclusion of Evidence

The available research provides data on the outcomes and tolerability reported across the studied patient population. The information provided is not a substitute for professional medical advice.

Frequently Asked Questions (FAQ)

Common questions about Bromek (FAQ)


Q: How quickly does Bromek typically start working?

A: Studies on how the drug moves through the body, known as pharmacokinetic data, show that the highest amount in the blood is typically reached within 30 minutes to one hour following an oral dose. However, official documents note that the time it takes for a person to experience a change in reported clinical symptoms may vary.

Q: Can Bromek be taken if I have kidney issues?

A: Regulatory documents advise that caution and monitoring are necessary for patients with severe renal impairment (severe kidney problems). Regulatory documents state that this caution is applied because there is a potential for the body's ability to clear the drug or its metabolites to be reduced in this population.

Q: What happens if a dose of Bromek is missed?

A: Official patient information sheets specify that if you miss a dose, you should take it as soon as you remember. However, if it is almost time for your next scheduled dose, the missed dose should be skipped entirely. Official instructions note that a double quantity must not be taken.

Q: Does Bromek affect blood pressure?

A: While dizziness is listed as an uncommon side effect, regulatory labeling does not include a change in blood pressure as a commonly reported adverse reaction. This information is based on the official safety profile.

Q: Why is Bromek prescribed for two seemingly different conditions?

A: The purpose of the drug is to address the underlying physiological issue of excessive or overly thick secretions. Its mechanism is designed to clear this tenacious bronchial mucus and improve its flow, which is relevant to the approved indications where mucus buildup is a primary concern.

Q: Is Bromek a narcotic or a controlled substance?

A: No. Bromek, which contains Bromhexine hydrochloride, is formally classified by the World Health Organization (WHO) as a mucolytic agent (R05CB02). This classification is separate from the categories used for narcotics or controlled substances.

Q: Is it possible to become dependent on Bromek?

A: The drug is a mucolytic agent and is not classified under categories related to substances with abuse potential. Accordingly, official product information does not commonly include documentation regarding dependency or abuse potential.

Q: Is Bromek safe for older adults?

A: Official documents define the standard labeled use as being for adults and adolescents (12 years and over). Specific safety data focused on the older adult population were noted as not having been reported in the primary clinical research overview provided.

Q: What is the main difference between Bromek and [Similar Drug Name]?

A: Bromek is classified as a benzylamine derivative that works as a secretolytic drug, specifically stimulating the production of thinner, watery secretions. The chemical classification and precise action are documented as the basis for the drug’s profile compared to others.

Q: Are there any long-term effects of taking Bromek that have been studied?

A: Clinical trials provided evidence over a 12-week treatment period. Safety data for use beyond this period are not detailed in the core research overview, but monitoring systems continue to track adverse event reports during long-term use.

Q: What kind of studies were done to get Bromek approved?

A: The research documentation mentions the completion of Phase 3 randomized, controlled trials (RCTs). These are a required and important step in the regulatory process for evaluating a drug’s efficacy and safety profile.

Q: Why do official documents mention Bromek is not for everyone?

A: Official documents define these restrictions based on populations who must not use the drug. The restrictions include individuals with a known hypersensitivity (severe allergic reaction) to the active ingredients and certain specific pediatric groups, thereby establishing boundaries for use.

Q: Does Bromek cause weight changes?

A: Weight change has not been specifically reported or listed as an uncommon or rare adverse reaction within the official safety profile documented by regulatory authorities.

Q: What if someone accidentally takes too much Bromek?

A: The official advice found in patient information states that if an accidental overdose is suspected, a patient should immediately consult a doctor or emergency services. Overdose management is typically symptomatic and may require professional medical monitoring.

Q: Does Bromek affect fertility or hormones?

A: Regulatory documents state the drug is not recommended for use during pregnancy or while breastfeeding. While pre-clinical studies in animals have explored effects on reproductive processes, official human labeling does not list a direct hormonal or fertility-related effect.

Q: What precautions are mentioned for stopping Bromek use?

A: Patient information sheets state that the medicine should not be stopped unless a healthcare professional instructs the user to do so. Official warnings specify that immediate cessation is required if a severe allergic or severe skin reaction occurs.

Q: How is Bromek's intended benefit measured in clinical trials?

A: The intended benefit in clinical trials was primarily measured through the evaluation of patient-reported symptom scores. Other methods used included the assessment of changes in clinical status over the treatment period.

Q: How long does Bromek stay in the body after the last dose?

A: Pharmacokinetic data from regulatory filings indicates how long the drug remains in the body. The time it takes for the amount of drug to halve, known as the half-life, is documented to typically range between 13 and 40 hours.

Q: Can Bromek make me feel dizzy or lightheaded?

A: Official documents list dizziness and headache as less frequent adverse effects associated with the drug’s use.

Q: Does Bromek require regular blood tests while using it?

A: While monitoring of liver function was performed in clinical studies and caution is noted for people with severe liver impairment, routine, mandatory blood tests for all patients are not universally stipulated in the official regulatory labeling.

How should Bromek be stored and disposed of?

Official Storage and Disposal Requirements

Storage of Bromek (Bromhexine hydrochloride) must align with the environmental constraints documented in regulatory labeling to maintain product stability.

Storage Requirement Official Condition
Temperature Store below 30 C.
Protection Keep in the original outer carton and tightly closed to protect from light and moisture.
Child Safety Mandatory to keep out of the sight and reach of children.
In-Use Stability Liquid formulations may have a limited shelf life after opening the bottle.

All unused or expired product must be disposed of in accordance with local regulations for pharmaceutical waste. Disposal should not involve releasing the product into the environment or pouring it down drains. If a local take-back program is unavailable, consult governmental health authority guidance for household disposal procedures.

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

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