Deflegmin

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Deflegmin

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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 Deflegmin

Property Description
Active ingredient Ambroxol hydrochloride
Form Syrup, tablets, prolonged-release capsules (oral)
Pharmacological class Mucolytic and Secretolytic
Common purpose To thin, loosen, and aid in the clearance of phlegm
Origin Synthetic derivative of a plant compound

1. What is Deflegmin and Its Main Ingredient?

Deflegmin is a specific, proprietary medicine whose single main component is Ambroxol hydrochloride, which is officially classified as a mucolytic agent. It is an over-the-counter product designed to help patients manage symptoms of respiratory congestion. Ambroxol is a synthetic compound, although its chemical structure is derived from the natural plant alkaloid vasicine. The active ingredient is listed in the World Health Organization's (WHO) Anatomical Therapeutic Chemical (ATC) Classification System.


2. What Type of Medicine Is a Mucolytic?

A mucolytic is a type of medicine that works directly on the phlegm, or thick, sticky secretions, found in the airways. The general purpose of Deflegmin is to reduce the viscosity (thickness and stickiness) of this mucus, making it easier for the body to expel, which helps relieve the discomfort of a chesty, productive cough. This action, which promotes the clearance of mucus, is clinically recognized in pharmacological literature. Unlike simple cough suppressants, Ambroxol is also associated with stimulating the production of pulmonary surfactant, which supports the physiological mechanisms for clearing the respiratory tract.


3. What Forms Does Deflegmin Come In?

Deflegmin is intended for oral administration, meaning it is taken by mouth, and is commonly available in several distinctive forms to suit patient needs. These forms include a liquid syrup, standard tablets, and sometimes prolonged-release capsules. Ambroxol is available in these various dosage forms. The availability of these multiple oral forms ensures that patients, including children, can select a product format that best suits their needs.

What side effects are possible with Deflegmin?

Possible side effects and safety information for Deflegmin

This section outlines the documented side effects and safety restrictions for Deflegmin (Ambroxol), based on official regulatory product information. The frequency of side effects is categorized using standard medical terminology, though not all effects may occur in every person.

Common and Uncommon Adverse Reactions

The most Common side effect (occurring in up to 1 in 10 people) reported is nausea.

Uncommon side effects (occurring in up to 1 in 100 people) primarily involve the gastrointestinal system and include vomiting, diarrhea, indigestion (dyspepsia), and abdominal pain.

Serious and Clinically Significant Reactions

Severe skin reactions have been reported in association with Deflegmin, including Stevens-Johnson syndrome, toxic epidermal necrolysis, and acute generalized exanthematous pustulosis. If a rash or changes to mucous membranes (mouth, throat, nose, eyes, genitals) occur, use of the product should be stopped immediately.

Hypersensitivity reactions, which include anaphylactic reactions (e.g., anaphylactic shock, angioedema) and urticaria (hives), are listed among the rare reactions or those whose frequency cannot be estimated from available data. These require immediate medical attention.

Safety Precautions and Restrictions

Deflegmin is not recommended for use during pregnancy, especially the first trimester, or while breastfeeding, due to the active substance passing into breast milk and lack of definitive human safety data.

Caution is advised in individuals with:

  • Pre-existing stomach or duodenal ulcer disease.
  • Impaired liver or kidney function.
  • A weakened cough reflex or disorders of bronchial ciliary clearance, as this can lead to the retention of secretions in the respiratory tract.
  • Bronchial asthma, as the medicine may initially worsen the cough.

Overdose and Emergency Response

Overdose and When to Seek Help

Official regulatory information describes overdose of Deflegmin (Ambroxol hydrochloride) as generally presenting with an extension of known common undesirable effects observed at normal doses. In the event of suspected overdose, it is officially mandated that the individual consult a doctor or seek immediate emergency medical treatment [FDA Verification Portal].

Documented Manifestations:

System Officially Documented Signs/Symptoms
Gastrointestinal Nausea, vomiting, diarrhea, dyspepsia, and heartburn [FDA Verification Portal]
Nervous System Short-term restlessness and anxiety [NAFDAC Greenbook Admin]
Extreme Cases Hypotension (low blood pressure) [HPRA]

Official Emergency Management:

No specific antidote is known for Ambroxol overdose [EFDA]. Treatment is primarily defined by regulatory authorities as symptomatic and supportive [HPRA]. Acute interventions such as gastric lavage are generally not indicated unless the overdosage is confirmed to be extreme [HPRA]. Procedures like dialysis or forced diuresis will be ineffective for removing the drug due to its pharmacokinetic profile [National Drug Information].

Population Considerations:

For patients with severe renal impairment, the accumulation of hepatic metabolites is expected following excessive intake [HPRA]. Medical consultation is necessary to address these potential clearance limitations during an overdose event.

Therapeutic Uses of Deflegmin

What Deflegmin Treats: Main Uses and Benefits

Deflegmin (Ambroxol) is commonly used across domains where additional symptomatic support is needed to help with distressing respiratory symptoms related to physical discomfort. It is considered relevant for managing symptoms that interfere with daily comfort and may be part of symptomatic management when acute manifestations create noticeable physiological strain.

The medication is commonly used across conditions characterized by periods of heightened symptoms such as acute and chronic bronchopulmonary diseases, including various forms of bronchitis and pneumonia, in situations where patients experience physical discomfort and retention of viscous secretions. The medication is relevant in the therapeutic domains where short-term symptom management is appropriate for symptoms related to physical discomfort.

The use may be part of symptomatic management for symptoms related to physical discomfort, such as a chesty or productive cough associated with thick mucus. It supports the patient during difficult episodes and contributes to improved comfort during periods of heightened symptoms. This assists with managing symptoms that interfere with daily functioning and may help patients cope more steadily with symptom fluctuations, particularly when symptoms become more noticeable.

“It contributes to easing the overall symptom load and provides support that helps ease the overall symptom burden.”


Quick Fact: Relief for Phlegm Congestion Deflegmin is applied in addressing situations where thick, sticky mucus makes the cough associated with noticeable functional strain in the chest, offering supportive symptomatic relief.

Regulatory References

  1. European Medicines Agency referral document

Eligibility and Restrictions for Use

Eligibility Map: Who can and cannot use Deflegmin — Official Regulatory Information

This section outlines the eligibility criteria for Deflegmin (Ambroxol Hydrochloride) based strictly on information from official governmental regulatory documents.

Eligibility Scope

Classification Population/Condition
Contraindicated Individuals with known hypersensitivity to ambroxol or any of the product’s excipients.
Contraindicated Children under 2 years of age (in certain regions and for specific formulations).
Contraindicated Patients with rare hereditary problems such as fructose or galactose intolerance (depending on formulation excipients like sorbitol or lactose).
Not Recommended Women in the first trimester of pregnancy due to limited safety data.
Not Recommended Breastfeeding mothers, as the active substance is known to be excreted in breast milk.
Caution/Restricted Patients with severe renal or hepatic impairment must be administered the medicine cautiously, often requiring a reduction in dosage or extended dosing intervals to prevent metabolite accumulation.
Caution/Restricted Patients with a history of peptic ulcer disease or compromised airway motility.

Resulting Eligibility Structure

Official regulatory statements establish that absolute ineligibility is primarily due to hypersensitivity to the drug components. Use is officially contraindicated for infants under 2 years in certain therapeutic contexts. Furthermore, patients with severe organ impairment (liver or kidney) or a history of specific gastrointestinal issues must be administered the product with caution, representing a formal eligibility restriction defined in the product label.

What should I know about interactions with other medicines?

Interactions with other medicines and products

This section summarizes officially documented interactions involving the active substance ambroxol (Deflegmin), strictly based on governmental regulatory documents.

Documented Pharmacodynamic and Product Interactions

The following co-administrations are noted in official labeling due to their potential impact on the respiratory system or the efficacy of the co-administered drug.

Product Category Regulatory Statement / Implication
Antitussives (Cough Suppressants) Restriction: Co-administration is not recommended. The combination may depress the cough reflex, leading to the accumulation of secretions in the airways, which carries a risk of obstruction.
Certain Antibiotics Compatibility: The substance is officially documented to be used simultaneously with antibiotics such as amoxicillin, cefuroxime, erythromycin, and doxycycline. The drug increases the penetration of these antibiotics into lung tissues.

General Interaction Context

Official regulatory findings indicate that clinically significant adverse interactions with other medicines have not been observed outside of the specific pharmacodynamic interaction with antitussives. The profile is primarily defined by a required avoidance rule concerning products that suppress the cough reflex, while noting a compatible co-administration with specific antibiotic classes due to enhanced lung tissue concentration.

Mechanism of Action

Modulation of Secretion Properties and Clearance

The active ingredient's primary mechanism involves two concurrent actions: promoting the synthesis and release of pulmonary surfactant from Type II pneumocytes and stimulating the Ciliary Beat Frequency of epithelial cells. Surfactant integrates into the mucus layer, significantly reducing its viscosity and adhesiveness. This action modifies the physical properties of secretions and increases the Ciliary Beat Frequency, resulting in an acceleration of the Mucociliary Clearance (MCC) pathway.


Localized Anti-Nociceptive Action

A separate, rapid mechanism involves the drug acting as an inhibitor of Neuronal Voltage-Gated Sodium ( Na^+) Channels located on sensory nerve endings in the throat and upper airways. By blocking these peripheral channels, the drug temporarily impairs the generation of nerve impulses, generating localized anti-nociceptive signaling. This modulation of sensory signaling results in the localized attenuation of afferent nerve impulse transmission within the respiratory mucosa, acting independently of the longer-onset mucolytic mechanism.


Pathway Constraint Based on Physiological Maturity

The functional capacity of the mucociliary enhancement mechanism is subject to physiological constraints, notably the maturation state of the respiratory tract. Since the mechanical transport apparatus (the cilia and epithelium) is less developed, the mechanism results in a constrained physiological transport capacity in cohorts where the MCC apparatus is immature, such as children under six years of age.

Dosage and Administration Information

Official Administration Guidelines

Deflegmin (Ambroxol hydrochloride) is approved for oral administration across all available forms, including the syrup, standard tablets, and the 75 mg prolonged-release capsules. The official guidelines establish a standardized regimen for use, strictly detailing the route, schedule, and conditions of intake.


Administration Scope Official Instruction
Standard Dosing Schedule Initial Phase (2–3 days): 90 mg per day in three divided doses. Maintenance Phase: 60 mg per day in two divided doses. Prolonged-Release: 75 mg once daily.
Timing in relation to meals Administration should occur after meals (with food) and with a sufficient amount of fluid.
Population-Specific Rules For patients with severe renal or hepatic impairment, the official principle states the dose must be reduced, or the interval between doses must be extended. Pediatric dosing is strictly age- and weight-banded.
Special Procedural Conditions Prolonged-release capsules must be swallowed whole; they must not be crushed or chewed to maintain their intended release profile. Use is officially intended for short duration only.

The instructions structure the use of the medicine around a non-negotiable oral route and a defined step-down dosing pattern that reduces the daily intake following an initial phase. This procedural approach integrates strict timing requirements (after meals) and form-specific handling (swallowing capsules whole) while establishing the necessary constraint of short-term use only.

Recent Clinical Evidence

Deflegmin: Recent Clinical Evidence

Deflegmin contains the active ingredient ambroxol hydrochloride, a long-established mucoactive agent used to manage acute and chronic bronchopulmonary disorders characterized by abnormal, thick mucus secretion and impaired mucus transport. Recent clinical studies and meta-analyses continue to support the drug's efficacy and favorable safety profile across various patient populations.

Efficacy in Respiratory Conditions

Clinical evidence consistently highlights ambroxol's primary function as a secretolytic and mucokinetic agent. It works by increasing the secretion of fluid in the respiratory tract and stimulating the production of pulmonary surfactant, which plays a crucial role in reducing mucus viscosity and improving the transport of secretions out of the airways (mucociliary clearance). This action is beneficial for conditions like acute bronchitis, chronic obstructive pulmonary disease (COPD) exacerbations, and other respiratory tract infections with difficult expectoration.

  • Acute and Chronic Diseases: Randomized, controlled trials have shown that the use of ambroxol, often as an adjunct therapy, significantly improves symptoms such as cough and expectoration difficulty in both acute and chronic respiratory diseases, including lower respiratory tract infections (LRTIs) in adults and children.
  • Beyond Mucolytic Action: Research also suggests that ambroxol possesses additional beneficial properties, including anti-inflammatory, antioxidant, and local anesthetic effects, which contribute to its overall therapeutic impact on the respiratory system.

Tolerability and Safety

Studies consistently report that ambroxol is generally well-tolerated. Adverse events are typically mild and self-limiting, with the most common being gastrointestinal symptoms like nausea, vomiting, or diarrhea. Serious side effects, such as severe cutaneous adverse reactions (SCARs), are rare. The continued body of clinical evidence maintains a favorable benefit-risk profile for ambroxol in its licensed indications for treating respiratory conditions associated with viscous mucus and impaired expectoration.

Frequently Asked Questions (FAQ)

Common questions about Deflegmin (FAQ)


Q: Can this drug be taken with other medications, and are there any drug interactions I should be aware of?

The official product information and regulatory documents list specific drug-drug, drug-food, and drug-condition interactions that are either known or possible with this medicine. This information is intended to help a healthcare professional review all your medications and health status for any potential risks before considering treatment with Deflegmin.

Q: Does this drug interact with grapefruit or grapefruit juice?

Official drug labels indicate if the medicine's breakdown in the body, known as its metabolism, is affected by certain enzymes like CYP3A4, which can be impacted by grapefruit. If a significant interaction is known, the official labeling generally includes a specific warning about consuming grapefruit or grapefruit juice while taking Deflegmin.

Q: What should I do if I miss a dose?

Regulatory documents and the Patient Information Leaflet generally outline the steps to take following a missed dose. These instructions often advise taking the missed dose as soon as you remember, unless it is close to the time for your next scheduled dose, and clarify that you should not take a double dose to make up for a missed one.

Q: Is this drug safe for long-term use?

Regulatory approval for Deflegmin is based on safety and effectiveness data collected during clinical trials for a specific duration of use. The official product labeling, based on this research, outlines the intended use and may contain additional safety information from long-term follow-up studies to provide context for discussions about extended use with a healthcare provider.

How should Deflegmin be stored and disposed of?

How to Store and Dispose of Deflegmin?

The storage and disposal of Deflegmin (Ambroxol hydrochloride) must strictly adhere to regulatory labeling to maintain product stability and ensure public safety.


Official Storage Requirements

Requirement Official Condition
Temperature Store below 25 C or 30 C, depending on the formulation.
Protection Keep in the original container, tightly closed, protected from light and moisture.
Child Safety Must be stored out of the sight and reach of children.
Stability Liquid forms typically have a limited period of use (e.g., 1 month) after opening.

Disposal Instructions

Expired or unused Deflegmin must not be disposed of in household garbage or wastewater. The product must be returned to a pharmaceutical waste collection point or disposed of in accordance with local regulatory requirements for medical waste.

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

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