Bronco Phyllin

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Bronco Phyllin

Method of action: Antitussive

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 Bronco Phyllin

Property Description
Active Ingredients Choline Theophyllinate, Guaifenesin
Pharmacological Class Bronchodilator, Expectorant
Common Use Relief of constricted airways and chest congestion
Origin Synthetic derivative
Route of Administration Oral

What Type of Medicine is Bronco Phyllin?

Bronco Phyllin is a combination medicine for oral use, officially classified as both a bronchodilator and an expectorant. This formulation, which is often prepared as a tablet or syrup, is a synthetic derivative designed for individuals experiencing symptoms associated with chronic obstructive respiratory conditions. The drug's structure as a combination of two established agents simultaneously addresses both muscle constriction and mucus viscosity in the respiratory system.


Composition: The Dual Active Ingredients

The medicine contains two principal active ingredients: Choline Theophyllinate and Guaifenesin. Choline Theophyllinate is a highly soluble salt form of Theophylline, belonging to the xanthine derivative class. This component relaxes bronchial smooth muscle to promote wider airways. The accompanying compound, Guaifenesin, is a well-established mucoactive agent that facilitates the clearance of secretions from the respiratory tract. This specific combination is found in several formulations internationally, highlighting a common therapeutic strategy for managing respiratory symptoms.


What is Bronco Phyllin's General Purpose?

The primary therapeutic purpose of Bronco Phyllin is to facilitate easier breathing by utilizing the synergistic effects of its two components. The bronchodilator works to widen the airways, while the expectorant supports the body’s natural ability to expel accumulated, thick mucus from the chest. The use of bronchodilator and expectorant combinations assists in improving symptoms of airway obstruction and secretion removal. This dual mechanism provides integrated relief for both airway narrowing and congestion.

What side effects are possible with Bronco Phyllin?

Possible Side Effects and Safety Information

The official safety profile for Bronco Phyllin, a combination of Choline Theophyllinate and Guaifenesin, focuses heavily on the characteristics of its Theophylline component, which is associated with a narrow margin between effective and toxic concentrations. Regulatory documents classify potential adverse reactions across several physiological systems.


System-Organ Classification and Frequency

Adverse effects are categorized based on their reported incidence and the organ system involved. Common adverse reactions typically include effects on the Nervous System (such as headache, insomnia, tremor, and restlessness) and the Gastrointestinal System (including nausea, vomiting, and diarrhea). The Cardiac System may also be affected, leading to common events like tachycardia or palpitations.


Serious Adverse Reactions and Safety Constraints

Regulatory authorities document specific, serious adverse reactions often linked to elevated Theophylline concentrations. These include seizure (convulsions), severe cardiac arrhythmias (such as ventricular arrhythmias), and profound hypokalemia (low potassium levels). The Guaifenesin component also carries a documented risk of severe anaphylactic reaction.

Safety notes specify that the frequency and severity of adverse events increase significantly when Theophylline concentrations in the blood exceed specific thresholds. Caution is particularly noted for pediatric patients (especially those under one year), older adults, and individuals with severe hepatic impairment or certain pre-existing cardiac conditions, where altered drug clearance increases the risk of toxicity.

Overdose and Emergency Response

Overdose and When to Seek Help

Regulatory documentation confirms that any overdose involving Bronco Phyllin must be regarded as potentially fatal, requiring immediate medical intervention. The toxicity profile is predominantly driven by the theophylline component, which can lead to severe, life-threatening outcomes. If an overdose is suspected, individuals must seek professional assistance or contact a Poison Control Center right away.


Documented Manifestations and Severe Outcomes

System Documented Overdose Manifestations
Neurological Seizures, status epilepticus, tremors, and agitation.
Cardiovascular Ventricular arrhythmias, tachycardia, and cardiac arrest.
Metabolic Hypokalemia (low potassium), hyperglycemia, and metabolic acidosis.

Serious outcomes documented in regulatory texts include the possibility of acute renal failure and acute lung injury.


Required Emergency Management

Treatment is officially classified as symptomatic and supportive, as no specific antidote is known. Procedures to prevent further drug absorption are mandated, including gastric lavage and the administration of oral activated charcoal. Official management also requires the immediate and continuous monitoring of vital signs, including ECG evaluation for documented arrhythmias and laboratory assessment of serum theophylline concentrations and electrolyte balance. Regulatory texts note that elderly patients may exhibit heightened sensitivity and a greater risk of severe outcomes, such as seizures, during chronic toxicity.

Therapeutic Uses of Bronco Phyllin

What Bronco Phyllin Treats: Main Uses and Benefits

Bronco Phyllin is utilized to provide supportive symptomatic relief for chronic and acute respiratory issues, applied across domains where additional symptomatic support is needed. This approach helps address symptom clusters that create noticeable interference with a patient's daily comfort and functional stability.


Managing Constricted Airways and Wheezing

The therapeutic scope includes use in situations involving symptoms related to constricted air passages. This medication is commonly used across conditions characterized by symptoms like wheezing, uncomfortable chest tightness, and shortness of breath associated with bronchial muscle constriction. It offers symptomatic assistance for conditions including Chronic Obstructive Pulmonary Disease (COPD), Chronic Bronchitis, and certain Asthma-related symptoms. The medication helps support more comfortable breathing, which may help patients cope more steadily with these distressing episodic or chronic manifestations.

Clearing Chest Congestion and Productive Cough

The medication is relevant in clinical settings marked by respiratory congestion and difficulty clearing the lungs. It helps address symptom clusters related to a chesty or productive cough caused by the presence of thick, tenacious phlegm. By helping to thin and loosen these secretions, the treatment contributes to improved comfort during periods of heightened symptoms by contributing to easing the overall symptom load associated with cough and assists with managing symptoms of trapped mucus.


Quick Fact: Relief for Dual Symptoms Bronco Phyllin is commonly used to help with both airway constriction symptoms (e.g., wheezing) and thick mucus symptoms (e.g., productive cough) in individuals with chronic obstructive conditions.

Regulatory References

  1. Theophylline: MedlinePlus Drug Information

Eligibility and Restrictions for Use

The eligibility profile for Bronco Phyllin (Choline Theophyllinate and Guaifenesin) is strictly defined by regulatory warnings and contraindications for its active components.

Eligibility scope

Classification Eligible Population Restriction/Exclusion
Contraindicated Use is prohibited Known hypersensitivity to xanthine derivatives, Theophylline, Choline Theophyllinate, or Guaifenesin.
Age-Related Adults and Adolescents (with no risk factors) Not Recommended in children under 4 years of age based on government guidelines for combination cough/cold products.
Conditional Use Older Adults (60 years) Requires caution and specific dose review due to potential for reduced Theophylline clearance.
Comorbidity Limits Use is restricted Patients with decompensated liver disease, acute fever (102 F), active peptic ulcer disease, or certain cardiac arrhythmias.
Physiological Status Use requires assessment Pregnancy (Category C) and Lactation require a risk-benefit determination, as the drug passes into breast milk.

Connection to the overall eligibility profile: The official label establishes who must not use the medicine (absolute contraindication) and specifies populations, such as those with impaired liver function or older adults, where use is restricted or conditional due to the risk of toxicity from altered drug clearance.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Bronco Phyllin (Theophylline) has a narrow therapeutic index, meaning small changes in its serum concentration can lead to toxicity or loss of efficacy. Its interaction profile is largely governed by its metabolism through the Cytochrome P450 (CYP) enzyme system, primarily CYP1A2.

Documented Pharmacokinetic Interactions

Interacting medicines and substances fall into categories that either increase or decrease theophylline's concentration in the body, requiring mandatory monitoring of serum levels.

Interaction Type Interacting Categories (Examples) Effect on Theophylline Concentration
Increased Concentration CYP Inhibitors (e.g., Ciprofloxacin, Cimetidine, Erythromycin) Decreased clearance, risk of toxicity
Decreased Concentration CYP Inducers (e.g., Phenytoin, Rifampicin, St. John's wort) Increased clearance, risk of therapeutic failure

Other Clinically Significant Interactions

Theophylline's central nervous system stimulant properties may antagonize the sedative and anxiolytic effects of Benzodiazepines. Concomitant use with Riociguat is generally not recommended. Additionally, clearance may be significantly altered by factors such as the consumption of caffeine, guarana, or charbroiled meats, and by clinical conditions like fever or the cessation/initiation of smoking.

Mechanism of Action

Bronco Phyllin functions as an antagonist of the A1 adenosine receptor. This central inhibitory action results in the modulation of downstream signaling pathways affecting smooth muscle cell calcium flux.

Bronco Phyllin inhibits phosphodiesterase (PDE) enzymes, specifically PDE3 and PDE4, thereby increasing intracellular concentrations of cyclic adenosine monophosphate ( cAMP). The resulting increase in intracellular cAMP levels leads to protein kinase A ( PKA) activation, which in turn phosphorylates proteins regulating ciliary beat frequency.

Furthermore, it modulates the release of inflammatory mediators from mast cells via the inhibition of calcium ion release from the sarcoplasmic reticulum. The compound's activity against A1 receptors and PDE enzymes constitutes a multi-targeted mechanistic profile.

Dosage and Administration Information

The administration of Bronco Phyllin, a combination medicine containing Choline Theophyllinate (Theophylline) and Guaifenesin, follows established prescribing information that outlines the procedural steps for its use. The medicine is approved for oral administration.

Official Dosing Regimens

The adult dosing schedule for the Theophylline component typically starts at an initial dose of 300 to 400 mg daily, administered as a single dose or split into two daily doses. The target maintenance range is generally 400 to 600 mg per day, with the maximum recommended daily dose not to exceed 600 mg. The final prescribed dose is determined by measuring serum drug concentrations using Therapeutic Drug Monitoring (TDM) to guide the titration process.


Administration Conditions

Official instructions require the medication to be taken at the same time each day to maintain steady drug levels. Consistency with respect to meals is necessary, meaning the medicine is taken either always with food or always without food, as food intake influences absorption. If prescribed as an extended-release tablet, it must be swallowed whole and must not be crushed, broken, or chewed.

Population-Specific Use

Official guidelines require dose modifications for certain groups. For example, older adults (geriatric) often have a reduced maximum daily dose, commonly restricted to 400 mg, and patients with hepatic impairment require a specific dose reduction due to decreased drug clearance rates.

Recent Clinical Evidence

Research evidence / Overview of studies for Bronco Phyllin

Evidence for use in Chronic Obstructive Pulmonary Disease (COPD)

Research has examined the combination of Choline Theophyllinate (a bronchodilator) and Guaifenesin (an expectorant) as a subject of study in conditions characterized by fluctuating or episodic manifestations like Chronic Obstructive Pulmonary Disease and chronic bronchitis. The evidence base includes well-controlled studies and reviews that pull together findings from multiple trials. These studies were applied in research contexts involving fluctuating or unstable symptoms and primarily included adults with established disease.

Researchers monitored several types of outcomes: they measured airway function using metrics, and tracked patient-reported outcomes describing perceived discomfort related to breathing, such as wheezing and shortness of breath. Studies also explored whether the use of this medicine was associated with a change in the frequency of acute exacerbations—the periods of heightened symptom activity—over time.

Evidence for use in Clearing Chest Congestion and Productive Cough

The expectorant component of Bronco Phyllin was evaluated in trials specifically looking at outcomes related to physical discomfort and difficulty clearing the lungs. These research studies, which were often short-term well-controlled studies, explored how the medicine’s components affect sputum characteristics and patient-reported outcomes for cough severity. Findings describe patterns where mucoactive agents were associated with changes that were monitored in cough productivity.

Long-term Studies and Follow-up Data

Available research includes long-term observational studies and trials with follow-up durations ranging from weeks to several months. Extended studies track whether the combination was associated with differences in the rate of severe episodes or hospitalizations over defined time intervals. However, long-term effects are not fully established for the specific combination drug.

What is Still Uncertain About the Research Evidence

The available research provides context, but it also highlights key areas where certainty remains low. One notable limitation is that comparative evidence is lacking to fully characterize the specific fixed-dose combination against other studied therapies. Furthermore, data for certain groups remain insufficient, particularly for children (under 12 years old), meaning the results apply only to the populations studied in the original regulatory trials.

Key Studies & References

  1. Theophylline: MedlinePlus Drug Information (used to establish bronchodilator component scope)
  2. Guaifenesin: MedlinePlus Drug Information (used to establish expectorant component scope)
  3. Theophylline for stable chronic obstructive pulmonary disease (COPD) - Cochrane Review (used to establish evidence level for a core component)

Frequently Asked Questions (FAQ)

Common questions about Bronco Phyllin (FAQ)

Q: Is Bronco Phyllin used as a quick-relief medicine or a long-term controller?

A: Official product information indicates that Bronco Phyllin is generally prescribed for the long-term maintenance treatment of chronic lung disease symptoms. Official information characterizes its role as a controller medicine, not as a medication for acute, immediate relief during sudden breathing episodes.

Q: How long does the effect of one dose of Bronco Phyllin generally last?

A: The intended duration of action for extended-release forms is consistent with the need for once or twice daily administration. However, official information highlights that the elimination rate of the active ingredient varies widely depending on many individual factors, including smoking status and other health conditions.

Q: What are the signs of a high or toxic level of Bronco Phyllin in the body?

A: Regulatory documents describe initial signs of serum concentrations exceeding the recommended limits. These can include persistent vomiting, tremor, restlessness or nervousness, and an increased heart rate (tachycardia). Official documents characterize these symptoms as serious and indicate they warrant immediate medical assessment.

Q: Is it safe to consume alcohol while taking Bronco Phyllin?

A: Official product information indicates that the medicine’s clearance can be sensitive to external factors. While official labels primarily focus on drug-to-drug interactions, they advise patients to consult a healthcare professional regarding alcohol consumption, as it can interfere with how the body processes many medications.

Q: What should be done about the dose if someone stops smoking?

A: Discontinuing smoking can significantly decrease the rate at which the body clears the active ingredient, which can lead to increased drug levels. Official labeling indicates that dose reduction and careful monitoring of blood levels are necessary if a patient discontinues smoking.

Q: Can over-the-counter pain relievers interact with Bronco Phyllin?

A: The medicine has a complex interaction profile, and its effects can be influenced by co-administered medicines, including some over-the-counter products. The drug’s label advises consulting a healthcare professional before adding any new medication, including OTC pain relievers.

Q: Can people with mild or non-active liver disease or ulcers take Bronco Phyllin?

A: The most restrictive official warnings concern patients with decompensated liver disease or active peptic ulcer disease. Use in patients with a history of these conditions, or current mild forms, is conditional and requires cautious assessment due to the potential for altered drug clearance.

Q: Do generic versions of Bronco Phyllin work the same as the brand-name product?

A: Regulatory bodies like the U.S. Food and Drug Administration (FDA) require generic versions of this drug to meet strict bioequivalence standards. These standards ensure that the generic medicine delivers the active ingredient to the body in a way that is comparable to the original, brand-name product.

Q: What is the main difference between Bronco Phyllin and inhaled bronchodilators?

A: Bronco Phyllin is an oral medicine with a dual mechanism of action, providing both bronchodilation (airway widening) and other prophylactic effects. In contrast, inhaled bronchodilators primarily work locally on the airway muscles and are often associated with quicker effects.

Q: Can Bronco Phyllin be used to treat symptoms in children (4–12 years old)?

A: Theophylline, an active ingredient, is an approved medication for use in children and teenagers in this age range. Official guidelines specify that the amount prescribed is determined by the healthcare provider and is typically based on the child's body weight.

Q: Can Bronco Phyllin cause allergic reactions like a rash or swelling?

A: Yes, allergic reactions are possible. The Guaifenesin component is associated with a risk of severe, whole-body allergic reaction (anaphylaxis). Allergic reactions to the Theophylline component are also possible, and patients should be aware of signs such as skin rash or swelling.

Q: Are there any specific foods that should be avoided when taking Bronco Phyllin?

A: Official warnings document that certain dietary factors can alter how the body handles the medicine. The intake of charbroiled meats may affect drug clearance, and absorption can potentially be affected by foods high in tannins or certain cruciferous vegetables.

Q: Can birth control pills change the level of Bronco Phyllin in the body?

A: Yes, regulatory warnings indicate that oral contraceptive use can significantly decrease the clearance of the active ingredient from the body, potentially leading to increased serum concentrations. Official warnings indicate that dose adjustments are often necessary when starting or stopping oral contraceptives.

Q: Is Bronco Phyllin safe to use during pregnancy?

A: Official information from the U.S. Food and Drug Administration (FDA) places this drug in a category where animal studies have shown potential risk to the fetus. This classification means there are no adequate or well-controlled studies in pregnant humans.

Q: Can Bronco Phyllin be used while breastfeeding?

A: The active ingredient is known to be excreted into human milk. Official information suggests this may cause irritability or other mild toxicities in nursing infants, and the risk of serious adverse effects is tied to whether the mother’s blood levels are toxic.

Q: Can changes in diet or weight affect the dose of Bronco Phyllin needed?

A: The dosing for children is often calculated based on body weight. However, official labeling states that the drug's overall effects cannot be reliably predicted by body weight alone in adults, which is a key reason why blood level monitoring (TDM) is often necessary to guide the dose.

Q: Is it possible to take Bronco Phyllin with or without food?

A: The official instructions require the medicine to be taken with consistency regarding meals because food intake influences the drug's absorption. This means the patient must either always take it with food or always without food.

Q: What should someone do if they accidentally take more Bronco Phyllin than prescribed?

A: Due to the narrow therapeutic range, the official label specifies the serious and potentially fatal effects of overdose (e.g., severe arrhythmias, seizures). Any suspected overdose warrants immediate reporting to a medical facility for professional assessment and monitoring of blood levels.

Q: Are there antibiotics that interact with Bronco Phyllin?

A: Yes, regulatory warnings document that certain antibiotics, which fall into the category of CYP inhibitors (such as Erythromycin and Ciprofloxacin), can significantly increase the concentration of the medicine in the body. These interactions require mandatory dose adjustments and monitoring.

How should Bronco Phyllin be stored and disposed of?

How to Store and Dispose of Bronco Phyllin

The storage of Bronco Phyllin must adhere strictly to regulatory requirements to ensure product stability and integrity. The medicine must be stored at Controlled Room Temperature, specifically between 15°C and 30°C (59°F and 86°F), and must not be frozen. The product should be kept in its original, tightly closed container and should not be used if the tamper-evident seal is broken or missing.

Disposal Requirements

Official guidelines require that all unused or expired Bronco Phyllin be disposed of safely. It is mandated to keep the medicine out of the sight and reach of children. Disposal should follow any specific instructions on the label. The preferred method is to use authorized drug take-back programs. The product should not be flushed down the toilet unless explicitly instructed to do so.

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

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