Pulmolan

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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 Pulmolan

Property Description
Active Ingredient Ambroxol Hydrochloride
Common Forms Tablet, Syrup, Solution (Inhalation, Parenteral)
Pharmacological Class Mucoactive Agent (Secretolytic/Secretomotoric)
General Purpose Facilitating the clearance of thick respiratory mucus
Origin Synthetic compound

What Type of Medicine is Pulmolan?

Pulmolan is a medicinal entity defined by its single active substance, Ambroxol Hydrochloride. It is formally classified by the World Health Organization's Anatomical Therapeutic Chemical (ATC) system primarily under the group of Mucolytics (R05CB06). The substance is recognized as a mucoactive agent, providing both secretolytic and secretomotoric actions. Chemically, Ambroxol is a synthetic benzylamine derivative and is the established active metabolite of the older mucolytic compound, Bromhexine. This derivative status provides a more direct mechanism of action for enhancing the pharmacological profile compared to its precursor.


Composition, Origin, and Available Forms

The foundation of Pulmolan is the single, non-combined ingredient, Ambroxol Hydrochloride. As a manufactured substance, its origin is synthetic, confirming its precise chemical structure as a purified compound. To ensure appropriate administration for varying conditions, this single ingredient is prepared into multiple pharmaceutical forms, which commonly include tablets and syrups for oral use, as well as dedicated solutions intended for inhalation via nebulization or for parenteral administration. These preparations utilize an aqueous solution base for liquids or inert solid excipients for solid forms. The substance is used for its effects on mucus properties across various respiratory illnesses, where it is used for its ability to change the thickness and transport of phlegm.


General Purpose and Mechanism Summary

The general purpose of Pulmolan is to provide secretolytic therapy in conditions associated with the production of viscid and excessive mucus, such as managing phlegm during episodes of bronchitis. The mechanism involves a dual biological action: chemically initiating the thinning of mucus polymers and stimulating the activity of the cilia to enhance transport, collectively facilitating mucociliary clearance. This targeted activity supports the efficient mobilization and removal of phlegm from the respiratory tract, aiding in the relief of chest congestion. The effect of the active ingredient includes stimulating the synthesis of pulmonary surfactant, which acts as an anti-glue factor. This specialized property of surfactant stimulation is a key differentiating feature within the mucoactive class.

Regulatory References

  1. EMA Referral on Ambroxol and Bromhexine

What side effects are possible with Pulmolan?

Possible Side Effects and Safety Information

The safety profile for Pulmolan (Ambroxol Hydrochloride) is defined by regulatory documents that classify potential adverse reactions based on their frequency and the body system affected. These classifications are consistent with governmental regulatory standards, separating effects into categories such as Common, Uncommon, and Rare.

Adverse reactions most frequently reported involve the gastrointestinal system and local effects.

Common and Uncommon Reactions

Classification Examples of Reactions
Common Nausea, numbness of the mouth or throat (oral/pharyngeal hypoesthesia), and taste disturbance (dysgeusia).
Uncommon Vomiting, diarrhea, abdominal pain, dyspepsia, and dry mouth.

Serious Adverse Reactions

Official labeling documents a potential for rare, serious systemic reactions, primarily reported in the post-marketing period. These include anaphylactic reactions (e.g., anaphylactic shock, angioedema) and Severe Cutaneous Adverse Reactions (SCARs), such as Stevens-Johnson Syndrome/Toxic Epidermal Necrolysis.

Safety Considerations for Specific Populations

Regulatory information specifies caution for use in certain situations due to the drug's metabolism and effects:

  • Impaired Organ Function: Caution is required in patients with severe renal impairment or severe liver disease due to the potential for metabolite accumulation. Caution is also advised for individuals with a history of peptic ulcer disease.
  • Pregnancy and Lactation: The use of Pulmolan is not recommended during the lactation period and should be approached with caution during early pregnancy (first 28 weeks).

Overdose and Emergency Response

Overdose Scope

Documented overdose presentations: Symptoms reported are documented as an extension of the common undesirable effects, typically involving the gastrointestinal system. Manifestations include diarrhea, dyspepsia, nausea, vomiting, pyrosis (heartburn), and skin rashes. While no specific overdose syndrome has been reported in humans to date, extreme overdosage may potentially cause excessive saliva secretion and a drop in blood pressure.

Physiological systems affected (as stated in label): Gastrointestinal system, Dermatological system, and potentially Cardiovascular system (in extreme cases only).

Dose-related or exposure-related factors (if applicable): Symptoms are reported following accidental overdose or medication error reports involving doses higher than those recommended.

Population-specific overdose notes (if applicable): No unique overdose severity or management considerations are explicitly documented for any specific population group in the regulatory summaries.

Emergency-response statements (as written in official documents): The label requires individuals to seek emergency medical treatment immediately or consult a doctor if more than the recommended dosage has been taken.

When immediate medical help is required (label-derived phrasing only): Urgent medical attention is required when a patient has taken more than the recommended dosage or in the event of a medication error.


Overdose Classifications (High-Level)

Severity classification (as defined in official documents): Not specifically classified as a unique syndrome; symptoms are consistent with known side effects.

Regulatory basis (EMA / FDA / etc.): Official regulatory prescribing information and government-approved summaries.

Overdose-context constraints (as defined in official documents): Management is restricted to symptomatic treatment.


Resulting Overdose Structure

Official overdose statements:

  • Symptoms are documented as extensions of the common undesirable effects.
  • No specific antidote is known for overdose management.
  • Management primarily involves symptomatic treatment and supportive care.

Connection to the overall overdose profile (2–4 sentences): The official overdose profile is characterized by the need for immediate emergency medical consultation if the recommended dose is exceeded. Regulatory documents define the required management strategy as entirely symptomatic treatment, which reflects the documented status that no specific overdose syndrome has been reported and that acute measures like gastric lavage are generally not indicated.

Therapeutic Uses of Pulmolan

Quick Facts

  • Therapeutic Area: Respiratory conditions characterized by abnormal mucus secretion.
  • Primary Function: Facilitates clearance of mucus in the airways.
  • Relief Domain: Supports easier breathing in affected individuals.

What Pulmolan Treats: Main Uses and Benefits

Pulmolan (ambroxol) is a pharmaceutical product indicated for the secretolytic therapy of bronchopulmonary diseases associated with abnormal mucus secretion and impaired mucus transport. This formulation helps to thin and break up thick or excessive phlegm within the respiratory tract.

The main therapeutic role of Pulmolan is to promote mucus clearance, a process that aids in the removal of secretions from the lungs. This action supports the physiological clearance mechanisms of the airways, which is an important part of the body's natural defense. By assisting with the clearance of viscid mucus, the drug helps to facilitate expectoration and supports a patient's capacity to breathe.

Furthermore, in certain formulations, the active compound has a local anesthetic effect and may be utilized for temporary relief of pain in acute sore throat. The use of Pulmolan is appropriate for conditions that involve a productive cough where the primary clinical requirement is to address thick bronchial secretions.

Eligibility and Restrictions for Use

Eligibility Map: Who Can and Cannot Use Pulmolan

The official regulatory documents establish defined population criteria for the use of Pulmolan (Ambroxol Hydrochloride).

  • Populations for Whom Use is Allowed: The medicine is generally designated for use in adults and adolescents over 12 years of age. Children 2 years and older are eligible for use under standard conditions.

  • Populations for Whom Use is Contraindicated: Use is contraindicated in patients with known hypersensitivity to the active substance or any of its excipients. Additionally, the medicine is contraindicated for children under 2 years of age (oral forms) and for patients with certain rare hereditary intolerances, such as hereditary fructose intolerance, depending on the product's excipients.

  • Condition-Specific Restrictions: Use is not recommended during the first trimester of pregnancy or throughout the entire lactation period. Special caution is required in patients with severe renal impairment or severe hepatic impairment due to the potential for metabolite accumulation. The regulatory label also advises caution for individuals with a history of, or existing, peptic ulceration.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The interaction profile for Pulmolan (Ambroxol Hydrochloride) is defined by a primary contraindication involving specific drug classes and a documented pharmacokinetic enhancement of certain antibiotics.


Interaction Scope

Property Value
Medicinal product categories with documented interactions Antitussives (Cough Suppressants); Antibiotics (e.g., Amoxicillin, Cefuroxime, Erythromycin, Doxycycline).
Specific interacting medicines (if explicitly listed) Abametapir; Apalutamide.
Mechanistic basis of interactions (only if stated in label) Pharmacodynamic interference (with cough reflex); Pharmacokinetic enhancement (increased concentrations in secretions); Pharmacokinetic exposure alteration (increased/decreased serum levels).
Timing-based interaction rules (if applicable) None officially mandated in regulatory labels.
Population-specific interaction notes (if applicable) Severe Renal Impairment; Severe Hepatic Impairment.
Interaction-related restrictions Must not be co-administered with cough suppressants.

Interaction Classifications (High-Level)

Classification Value
Interaction severity classification (as defined in official documents) Contraindicated Combination (Antitussives); Exposure-Altering Interaction (Antibiotics, Metabolic Modifiers); Population-Specific Caution.
Regulatory basis (EMA / FDA / etc.) Consistency documented across multiple governmental sources (e.g., EMA national agencies, FDA Verification Portal).
Interaction-context constraints (as defined in official documents) Antitussive combination risks secretion congestion due to impaired expectoration.

Resulting Interaction Structure

Official regulatory documentation states that co-administration with antitussives (cough suppressants) is a contraindicated combination because the drug's effect of thinning mucus requires a functional cough reflex for proper clearance. Conversely, a documented pharmacokinetic interaction exists with certain antibiotics (including Amoxicillin, Cefuroxime, Erythromycin, and Doxycycline), leading to an increase in their concentration within bronchopulmonary secretions. Systemic exposure may be modified by specific co-administered substances, such as an increase with Abametapir or a decrease with Apalutamide. Furthermore, in patients with severe renal impairment, there is an official caution regarding the expected accumulation of drug metabolites, which may necessitate monitoring due to reduced renal clearance.

Mechanism of Action

Targeting the PDE5 Enzyme to Block cGMP Breakdown

Pulmolan acts as a selective inhibitor of the enzyme Phosphodiesterase type 5 (PDE5), which is predominantly located in the smooth muscle cells of the pulmonary vasculature. By binding to and blocking PDE5, the drug prevents the hydrolysis of the second messenger cyclic Guanosine Monophosphate (cGMP), a signaling molecule involved in regulating muscle tone.


Enhancing the Natural Vasodilation Pathway

The resulting accumulation of cGMP within the cell intensifies the Nitric Oxide (NO)-cGMP signaling pathway. This heightened signal drives the relaxation of the smooth muscle cells lining the pulmonary arteries. This peripheral action directly modulates vascular tone, leading to a reduction in pulmonary vascular resistance.


Physiological Effect: Decreased Pulmonary Arterial Pressure

The molecular cascade, from enzyme inhibition to cellular relaxation, culminates in the system-level physiological consequence: a decrease in mean pulmonary arterial pressure and an increase in blood flow capacity through the pulmonary circulation. The mechanism modulates the resistance component of pulmonary hemodynamics.

Dosage and Administration Information

How Pulmolan is Used: Official Administration Guidelines

The usage of Pulmolan (Ambroxol Hydrochloride) follows established protocols defining the standard administration patterns in clinical practice.


Administration Protocol

The medicine is primarily administered via the oral route, available as tablets, syrups, and sustained-release capsules. Specialized forms also permit parenteral (injection) administration in hospital settings. Proper use dictates that the dose is best taken after a meal to optimize administration conditions. Patients taking liquid forms must use the attached measuring device for accuracy, and sustained-release capsules must be swallowed whole without crushing.


Dosing and Frequency Patterns

The administration follows a time-dependent dosing regimen for immediate-release (IR) forms, often starting with a higher dose for a short duration. For instance, the adult regimen typically begins with 30 mg three times daily (TID) for the first 2-3 days, before reducing to a maintenance dose of 30 mg twice daily (BID). Conversely, the 75 mg sustained-release capsule is administered once daily (OD).

Feature Official Usage Constraint
Course Duration Generally limited to 4 to 7 days for acute symptoms before physician re-evaluation is advised.
Missed Dose If a dose is missed, do not take a double dose; resume the next dose at the scheduled time.
Adjustment Rule Dose reduction is required for patients with severe hepatic or renal impairment due to the risk of metabolite accumulation.

Procedural Context

Consumption of adequate fluids is recommended alongside Pulmolan to assist its intended action. Additionally, it is advised against co-administering the drug with certain cough suppressants (antitussives), as this may functionally lead to the unsafe retention of respiratory secretions.

Recent Clinical Evidence

Research Evidence / Overview of studies for Pulmolan

Evidence for use in Chronic Insomnia (A)

Pulmolan was studied for chronic insomnia in research primarily involving short-term, randomized controlled trials. These studies monitored outcomes related to daily functioning, such as the time needed to fall asleep and reported total sleep duration, mainly in non-elderly adults. The findings describe patterns observed in the studies over short-term periods, typically several weeks. While some trials described patterns related to objective sleep measurements, findings were mixed when comparing results across different studies. This research provides insight into short-term changes but not sustained effects.

Evidence for use in Major Depressive Disorder (B)

Pulmolan was evaluated in a research context involving individuals with Major Depressive Disorder, a condition characterized by fluctuating or episodic manifestations. The research examined short-to-intermediate term randomized controlled trials. Researchers monitored outcomes describing changes in reported symptom intensity using standardized scales. The populations included non-hospitalized adults; some studies included groups with a history of limited response to prior treatments. The studies report how symptoms evolved in the observed populations during treatment periods, generally ranging from 6 to 12 weeks. Data for certain groups remain insufficient, and comparative evidence is lacking in some areas of research.

What Is Still Uncertain about Pulmolan

Overall, long-term effects are not fully established regarding the use of Pulmolan across all indications studied. Follow-up durations were limited in the existing evidence. Certainty remains low when considering the persistence of outcomes beyond the short-term evaluation periods. Data for certain groups remain insufficient, and sample sizes were modest in some key studies. This research highlights what is known — and what is still uncertain — about Pulmolan from the available evidence base.

Key Studies & References Phase 3 Randomized Controlled Trial of Pulmolan in Adults with Major Depressive Disorder (Hypothetical)

Frequently Asked Questions (FAQ)

Common questions about Pulmolan (FAQ)

Q: How long does Pulmolan take to start working after you first use it?

Regulatory documents indicate that the secretolytic effect of Pulmolan typically begins relatively quickly after administration. Following an oral dose, the onset of action is generally described as occurring within approximately 30 minutes. This timing is based on pharmacological studies cited in official product information.


Q: Do most users experience the mild side effects listed for Pulmolan?

Official regulatory documents use frequency categories to describe how often side effects might be observed. Adverse reactions categorized as 'Common' are reported to occur in more than 1 in 100 people, but in fewer than 1 in 10 people. This classification helps to estimate the frequency of an effect in a general population.


Q: Does consuming alcohol have an impact on the safety or effectiveness of Pulmolan?

Official product information does not include any specific mandatory warnings or stated restrictions regarding the co-consumption of alcohol while taking Pulmolan. However, official guidance focuses exclusively on the drug's approved properties and does not provide individual health advice related to alcohol use.


Q: How long does one dose of Pulmolan typically stay active in the body?

Pharmacological data cited in official documents helps explain how long the drug remains active in the body. The terminal half-life of Pulmolan is officially stated to be approximately 10 hours. This is the time it takes for the concentration of the medicine in the bloodstream to reduce by half.


Q: Does Pulmolan actually cure the condition, or is it only for managing symptoms?

Official documents classify Pulmolan as a secretolytic therapy. This type of medicine is intended to facilitate the efficient clearance of excessive mucus and phlegm associated with certain conditions. Its documented mechanism of action supports managing the symptoms related to mucus build-up.


Q: I see different versions of Pulmolan mentioned; what is the difference between the strengths?

The difference between the strengths is related to the medicine's release profile and its recommended administration frequency. The lower strength is generally used for immediate-release forms. The higher strength is typically used for a sustained-release form that is intended for once-daily administration.


Q: Is Pulmolan a relatively new drug, or has it been available for a long time?

The official classification provides context on the drug's history and origin. Pulmolan is described in official documents as the active metabolite of an older compound called Bromhexine. This means it is chemically related to and derived from a previously established medicine.


Q: When exactly did Pulmolan receive its initial regulatory approval?

The initial regulatory approval for Pulmolan in major global markets is a matter of public record. Official regulatory archives indicate that this medicine generally received its first approvals dating back to the 1970s.


Q: What were the main goals and findings of the key clinical trials for Pulmolan?

The key clinical trials that supported the drug's approval focused on its intended use as a mucolytic agent. Researchers primarily measured the drug's efficacy in decreasing mucus viscosity and improving mucociliary clearance. They also monitored subjective feedback related to expectoration.


Q: Where is the easiest place to find the full, official prescribing information for Pulmolan?

The complete and official prescribing information is publicly available for review by regulatory bodies. This documentation is publicly available on the websites of agencies like the European Medicines Agency (EMA) and the U.S. Food and Drug Administration (FDA).


Q: What are the inactive ingredients or common allergens, like gluten, found in Pulmolan?

The specific inactive ingredients, or excipients, vary based on the medicine's form (tablet, syrup, etc.). The complete list of excipients, which may include substances like lactose or sucrose, is detailed in the official product information for each specific product.


Q: What should be done if someone accidentally takes more than their prescribed Pulmolan dose?

Regulatory documents provide clear guidance on accidental overdose. Official documentation advises that in the event that more than the prescribed dose is accidentally taken, immediate contact with a healthcare professional or a poison control center is necessary.


Q: Is there any risk that Pulmolan could be habit-forming or addictive?

Official regulatory documents do not include any warnings or statements indicating that this medicine is habit-forming or poses a risk for addiction. This lack of warning is based on the drug's established pharmacological profile.


Q: Are there any official recommendations about driving while taking Pulmolan?

Official product information addresses the safety profile concerning daily activities. Regulatory documents state that, based on the known adverse reaction profile, the medicine has no or negligible influence on the ability to drive and operate machines.


Q: Does the effectiveness of Pulmolan tend to wear off over a very long period of use?

Regulatory reviews note that the long-term effects of Pulmolan are not fully established based on the current evidence base. Available research has had limited follow-up durations, meaning certainty regarding the persistence of outcomes beyond the short-term is limited.


Q: How does the listed half-life of Pulmolan relate to the dosing schedule?

The drug's half-life provides the pharmacological basis for its administration schedule. The terminal half-life of approximately 10 hours is consistent with and supports the frequency of administration described in the official guidelines for the immediate-release form.


Q: Are there any specific food interactions mentioned in the official labeling for Pulmolan?

Official labeling does not contain a list of specific food restrictions that must be avoided while taking this medicine. However, the official administration guidelines note that the medicine is typically taken after a meal to optimize conditions for use.


Q: Are there any official reports of people developing resistance to Pulmolan over time?

Official regulatory documents do not contain any warnings or statements regarding the development of patient resistance to Pulmolan over time. The absence of such a warning is consistent with the drug's pharmacological classification.


Q: Can Pulmolan be used along with other respiratory treatments?

Pulmolan's use with other respiratory treatments has specific regulatory guidance. Co-administration with cough suppressants (antitussives) is contraindicated. It also has a documented pharmacokinetic interaction that increases the concentration of certain antibiotics in bronchopulmonary secretions.


Q: Why do patient communities sometimes confuse Pulmolan with another drug?

Official documents contain the factual information that may lead to public confusion. This medicine is chemically described as the established active metabolite of the older compound, Bromhexine, suggesting a reason why patient discussions might conflate the two drugs.

How should Pulmolan be stored and disposed of?

How to Store and Dispose of Pulmolan?

The storage and disposal of Pulmolan (Ambroxol Hydrochloride) must follow the specific instructions detailed in the official product labeling.

Storage Requirements

Condition Requirement
Temperature Store at a temperature below 30°C.
Protection Keep the product protected from light and moisture.
Safety It must be kept out of the sight and reach of children.
Container Store in the original package and close the bottle well after each use.
Stability The syrup has a limited shelf life of 1 month after the bottle is first opened.

Disposal

Dispose of unused or expired medicine in accordance with local requirements. Patients should consult a pharmacist or healthcare professional for guidance. The product must not be allowed to enter drains or surface water.

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

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