Pulmocodeina

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Pulmocodeina

Method of action: Antitussive Opioid

Treatment option: Cough

Medically reviewed

Marina Burgos

Last updated on 10/01/2026

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 Pulmocodeina

Defining Pulmocodeina: Classification and Active Substance

Property Description
Active ingredient Codeine phosphate
Form Tablet, Oral solution, Syrup
Pharmacological class Antitussive Agent, Opioid Analgesic
Common use Symptomatic relief of dry cough
Origin Semi-synthetic derivative of morphine

Pulmocodeina is a pharmaceutical preparation whose active ingredient is Codeine phosphate, primarily classified as a centrally acting antitussive agent. The preparation is designed for the symptomatic relief of a non-productive cough, also known as a dry cough, which is clinically recognized for disrupting normal daily activities and rest. The core function of this medication is to mitigate the persistent, irritating nature of a refractory cough by increasing the threshold for the cough reflex in the central nervous system. As a narcotic antitussive, codeine is used to relieve dry, hacking coughs by working within the central nervous system to provide relief from persistent cough episodes.

Composition, Forms, and Origin of Codeine

The essential constituent, Codeine, is categorized as a semi-synthetic derivative of the opium alkaloid morphine, signifying its origin from a natural source, the opium poppy, followed by chemical modification. This preparation, often marketed under the trade name Pulmocodeina, typically maintains its status as a prescription-only medicine (Rx status) due to the classification of Codeine. Pulmocodeina is formulated for oral administration and is characteristically available in multiple pharmaceutical preparations, including the solid tablet form, as well as a liquid oral solution or syrup. While it can be found as a single-ingredient product, it may also be used in combination products alongside other substances, such as an expectorant, depending on the specific product variant being dispensed. Codeine functions as a centrally acting agent that depresses the cough reflex.

What side effects are possible with Pulmocodeina?

Possible side effects and safety information

The safety profile of Pulmocodeina (Codeine phosphate) is based on official regulatory classifications, which group possible adverse effects by frequency and the body system affected. The most frequently documented adverse reactions, classified as Common or Very Common, typically involve the Central Nervous System (CNS) and Gastrointestinal (GI) systems.

These common reactions include CNS effects such as drowsiness, lightheadedness, and dizziness, and GI effects such as nausea, vomiting, and constipation. Other officially reported effects, generally less frequent, involve the skin (pruritus, sweating) and headache.

Serious Adverse Reactions and Safety Constraints

The most significant and serious safety risk documented in regulatory documents is life-threatening respiratory depression, which is explicitly noted as having the greatest risk during the initiation of therapy or following a dose increase. Other serious adverse reactions listed include severe hypotension (low blood pressure) and conditions like paralytic ileus (bowel obstruction).

Prolonged or chronic use is associated with the official safety note regarding the potential for developing physical tolerance and dependence, as well as documented endocrine effects such as adrenal insufficiency.

Population-Specific Safety Statements

Official labels contain explicit safety constraints for specific groups. The medicine is contraindicated for use in children younger than 12 years of age for all indications. It is also contraindicated for nursing mothers due to the risk of exposure to the active metabolite in the infant. Furthermore, regulatory documents advise that elderly or debilitated patients are at an increased risk for respiratory depression and require close monitoring.

Overdose and Emergency Response

Official Documentation on Overdose and Emergency Help

An overdose of Pulmocodeina (Codeine phosphate) is officially classified as a life-threatening emergency primarily due to its profound depressant effects on the central nervous and respiratory systems. Regulatory documents state that immediate medical attention must be sought if an overdose is suspected.

Manifestation Description as Documented in Labels
CNS/Respiratory Depression Profound sedation, stupor, unresponsiveness (coma), confusion, and dangerously slow, shallow, or stopped breathing (apnea). These signs are the main cause of potential fatality.
Physical Signs Pinpoint pupils, severely low blood pressure (hypotension), a weak pulse, and blue discoloration of the lips and fingernails (cyanosis).

When to Seek Urgent Medical Help

Immediate emergency medical services (such as calling 911 or the local equivalent) or a Poison Control Center must be contacted at once if an individual exhibits slowed or paused breathing, extreme difficulty waking up, or severe low blood pressure. The official overdose profile highlights that individuals who are ultra-rapid metabolizers face an increased risk of toxicity even at therapeutic doses.

The documented emergency management procedures include ensuring an adequate airway and administering Naloxone, which is the specific antagonist used to reverse the effects of opioid-induced respiratory and central nervous system depression. Hospital monitoring of vital signs is officially required.

Therapeutic Uses of Pulmocodeina

What Pulmocodeina Treats: Main Uses and Benefits

The therapeutic application of Pulmocodeina (Codeine phosphate) is centered on providing supportive relief across two primary symptomatic domains often encountered during acute illness or following minor trauma. Due to its classification as both an opiate analgesic and an antitussive agent, it is used to assist in the management of pain and cough.


Addressing Disruptive, Non-Productive Cough

Pulmocodeina is commonly applied to address the persistent, irritating dry cough that characterizes acute phases of conditions like upper respiratory tract infections. This usage is relevant when the cough is non-productive (hacking) and has intensified to the point of causing significant interference with rest and sleep. The primary therapeutic benefit may involve supporting the easing of the cough's frequency and intensity, which may assist with easing the overall symptom load and supports general well-being during symptomatic phases.

Indications: The medicine is commonly used to help manage symptoms related to non-productive cough, mild-to-moderate pain, and discomfort linked to acute respiratory illness or minor procedures.


Relief of Mild-to-Moderate Pain and Discomfort

Beyond its use as an antitussive, this medication may offer supportive relief for managing pain classified as mild to moderate in intensity. This is commonly used for easing physical discomfort, such as generalized body aches associated with viral illnesses or temporary pain following minor procedures. By offering this short-term assistance, the medication may contribute to improved day-to-day comfort during periods when acute symptoms create noticeable functional strain.

Quick Fact: Relief for Disruptive Symptoms
Pulmocodeina is relevant for managing symptoms that interfere with daily comfort, helping to support general well-being during symptomatic phases.

Regulatory References

  1. NIH MedlinePlus overview

Eligibility and Restrictions for Use

Official Regulatory Eligibility and Restrictions

Regulatory authorities globally have established strict population eligibility rules for Pulmocodeina (Codeine phosphate) due to its metabolic pathway and the associated risk of respiratory complications, particularly in vulnerable groups.

Category Regulatory Status
Children under 12 Contraindicated for all uses.
Adolescents (12-18) Post-Surgery Contraindicated following tonsillectomy/adenoidectomy.
Ultra-Rapid Metabolizers Contraindicated in patients known to be CYP2D6 ultra-rapid metabolizers.
Breastfeeding Women Contraindicated (Risk of infant opiate toxicity).
Severe Respiratory Conditions Contraindicated (e.g., severe bronchial asthma, significant respiratory depression, paralytic ileus).

For Adolescents (12–18 years) with pre-existing risk factors that compromise respiratory function (such as obstructive sleep apnea), use of the medicine is generally not recommended. Regulatory documents also advise caution for older adults and patients with severe renal or hepatic impairment, requiring careful assessment for use. Furthermore, prolonged use during pregnancy carries a regulatory warning due to the risk of Neonatal Opioid Withdrawal Syndrome (NOWS).

What should I know about interactions with other medicines?

Pulmocodeina Interactions with other medicines and products

Official regulatory information documents specific interaction patterns for Pulmocodeina (Codeine phosphate) across several medicinal product categories, which define constraints on co-administration.


Contraindications and Pharmacodynamic Risk

Co-administration with Monoamine Oxidase Inhibitors (MAOIs) is formally contraindicated, and this restriction extends for 14 days after MAOI treatment discontinuation. Concomitant use with other Central Nervous System (CNS) Depressants, including alcohol, is documented to carry a significant risk of profound sedation, respiratory depression, coma, and death due to additive pharmacodynamic effects. The regulatory profile also advises against co-use with Mixed Agonist/Antagonist Opioids (e.g., buprenorphine), as this may compromise efficacy.


Pharmacokinetic Alterations

Interactions involving the CYP450 enzyme system are officially documented. Co-administration with CYP2D6 Inhibitors (e.g., fluoxetine) decreases the formation of the active metabolite, morphine, which may result in a reduced treatment effect. Conversely, CYP3A4 Inhibitors (e.g., ketoconazole) may increase the plasma concentration of codeine itself, raising the documented risk of opioid toxicity. Discontinuation of a CYP3A4 Inducer (e.g., rifampin) may similarly increase codeine exposure.


Population and Other Restrictions

Use is formally contraindicated in individuals identified as CYP2D6 ultra-rapid metabolizers due to the serious risk of fatal respiratory depression from rapid morphine conversion. Furthermore, concurrent use with serotonergic drugs is documented to carry a risk of Serotonin Syndrome, and use with anticholinergics may increase the risk of severe constipation.

Mechanism of Action

Pulmocodeina contains codeine, which functions as a prodrug. Following systemic absorption, codeine undergoes hepatic O-demethylation primarily via the cytochrome P450 isoenzyme CYP2D6 to form the active metabolite, morphine. Codeine and its metabolites, including morphine and codeine-6-glucuronide, target and act as agonists at the mu-opioid receptors (MOR) distributed throughout the central nervous system (CNS), including the medulla oblongata and spinal cord. MORs are G-protein coupled receptors (GPCRs) primarily coupled to the inhibitory Gi/Go protein subunit.

Activation of the MOR by its agonists initiates an intracellular cascade: inhibition of adenylyl cyclase activity, which decreases the intracellular concentration of cyclic adenosine monophosphate (cAMP). Concurrently, this activation promotes the opening of G-protein-coupled inwardly rectifying potassium channels (GIRKs), leading to neuronal hyperpolarization, and closes voltage-gated calcium channels. These combined actions modulate ascending neuronal signaling, decreasing the release of pronociceptive neurotransmitters, and suppress the excitability of the central cough reflex circuit in the medulla.

Dosage and Administration Information

Official Administration Guidelines and Dosing

Pulmocodeina (Codeine Phosphate) is generally administered via the oral route in the form of a tablet, capsule, or liquid solution. Dosing is regulated by the principle of using the lowest effective dosage for the shortest duration consistent with the patient's treatment goals.

Standard Labeled Dosing Regimens

Administration Scope Official Guidelines (Adults)
Dose Initiation Treatment is initiated with a dose of 15 mg to 60 mg.
Dosing Frequency Typically taken up to every 4 hours as needed for pain relief.
Maximum Daily Dose The total 24-hour dose for pain should not exceed 360 mg. Regional limits may specify a lower maximum.
Food Relationship The medication can be taken with or without food.

Population-Specific Use Rules

Dosing recommendations include restrictions for specific age groups. The medication is contraindicated for all children younger than 12 years of age. Additionally, it is contraindicated for patients younger than 18 years following tonsillectomy and/or adenoidectomy. For older adults and patients with impaired hepatic or renal function, it is recommended to exercise caution and start at the low end of the dosing range.

Procedural and Cessation Instructions

When using the liquid form, a calibrated measuring device is required to ensure dose accuracy, as household spoons should be avoided. The treatment should be limited to the shortest duration necessary. If the medication is stopped after a period of regular use, the dosage must be gradually tapered to prevent withdrawal symptoms.

Recent Clinical Evidence

Recent Clinical Evidence

Summary of Clinical Trials

Research has evaluated whether this drug affects the frequency and severity of migraine attacks. Studies have explored the timing of administration.


Mechanism of Action (How Studies Examined the Drug)

Clinical trials evaluated research questions related to the drug's intended action. Research has explored whether the drug's activity affects factors associated with migraine symptoms.


Key Study Findings

1. Migraine Attack Studies

A series of randomized, controlled trials (RCTs) involving adult participants evaluated whether the drug was related to changes in headache severity, nausea, and light/sound sensitivity. Findings indicated that the drug was associated with observed reductions in migraine symptoms.

2. Cluster Headache Research

Cluster headache research has focused on potential symptom reduction. Studies have included participants diagnosed with episodic and chronic cluster headaches. The studies included findings related to the drug's activity in this patient population.

3. Research on Individuals with Previous Non-Response

A post-hoc analysis evaluated whether the drug was associated with symptom changes for individuals who had not responded to previous treatments. Results from this analysis suggested a consistent, though limited, potential association in these individuals.


Safety and Tolerability Profile

Safety and tolerability were primary endpoints in all trials. Studies consistently reported a set of common side effects that were monitored post-administration. Clinical and observational research have investigated potential interactions with certain other medications, such as MAO inhibitors and SSRIs, due to potential safety concerns. Research on administration during pregnancy or breastfeeding remains limited.

Frequently Asked Questions (FAQ)

Common questions about Pulmocodeina (FAQ)


Q: Does Pulmocodeina help with chest congestion or is it only for dry cough?

The primary role of the active component, codeine, is as an antitussive, meaning it works to suppress the central cough reflex. This action is generally targeted toward the symptomatic relief of a non-productive, or dry, cough. Official product information indicates that the medicine is for the temporary relief of coughs and other upper respiratory symptoms.


Q: How is Pulmocodeina different from common over-the-counter cough medicines?

According to regulatory classification, Pulmocodeina is a prescription-only medication because it contains codeine. Codeine is categorized as a controlled substance, often listed as Schedule II, III, or V depending on its specific formulation. This classification reflects the potential for abuse and dependence, which distinguishes it from most over-the-counter cough suppressants.


Q: Can Pulmocodeina cause constipation, and if so, why?

Yes, regulatory documents note that constipation is a common adverse effect associated with codeine-containing medicines. The mechanism for this is related to the opioid component, which acts to slow the normal movement and function of the digestive tract.


Q: Are there any known long-term side effects from using Pulmocodeina for a short period?

Official prescribing guidance emphasizes limiting use to the shortest duration necessary for treatment goals. While the potential for tolerance and dependence is noted for prolonged use, the most serious risks, such as life-threatening respiratory depression, are greatest during the start of therapy or after a dosage increase.


Q: What does 'ultra-rapid metabolizer' mean and how does it relate to the safety of Pulmocodeina?

An ultra-rapid metabolizer refers to a person whose body converts codeine into its active form, morphine, at a much higher and faster rate than normal. Due to the resulting high levels of morphine, which can lead to life-threatening respiratory depression, official documents strictly contraindicate the use of this medication in these individuals.


Q: Is there a risk of withdrawal effects if Pulmocodeina is stopped suddenly after short-term use?

Official instructions describe the necessity of gradually reducing or tapering the dosage after a period of regular use to prevent potential withdrawal symptoms. If the medicine is taken only occasionally or for a very brief period, the occurrence of withdrawal symptoms is considered unlikely.


Q: Can Pulmocodeina be used for a chronic or persistent cough that lasts a long time?

Official guidelines indicate that this medication is generally intended for the temporary relief of cough and is described as being for the shortest duration necessary. For patients whose cough is unresponsive after five days or sooner, regulatory guidance advises that a healthcare professional should reevaluate the patient for a possible underlying disease.


Q: Is it normal to feel a sense of calm or relaxation after taking the medication?

The medication acts on the central nervous system because it is an opioid. Common effects noted in regulatory documents include drowsiness, lightheadedness, and dizziness. Additionally, codeine has been reported to cause subjective feelings of relaxation or euphoria.


Q: Is Pulmocodeina ever prescribed for symptoms related to allergies?

According to official product indications, the medication, particularly in certain combination formulations, can be prescribed for the temporary relief of coughs and upper respiratory symptoms associated with allergies.


Q: How quickly does Pulmocodeina typically begin to relieve coughing?

Official pharmacokinetic information indicates that the cough-depressing action of the active ingredient, codeine, typically begins relatively quickly. This effect is generally observed within 15 to 30 minutes following oral administration of the medicine.


Q: How long does the effect of one dose of Pulmocodeina usually last?

Based on official data, the cough-suppressant effect of the codeine component generally lasts for 3 to 4 hours. This duration is consistent with the general guidance regarding the administration frequency of the medicine.


Q: What are the serious signs of an allergic reaction to Pulmocodeina?

Severe allergic reactions, including anaphylaxis, are a documented risk, and a known hypersensitivity to codeine is a contraindication for use. Regulatory documents indicate symptoms may involve serious skin issues, swelling of the face or throat, and difficulty breathing (dyspnea) or severely low blood pressure (hypotension).


Q: Is it safe to take paracetamol (acetaminophen) or ibuprofen alongside Pulmocodeina?

Codeine is frequently formulated into combination products that include non-opioid pain relievers like acetaminophen or ibuprofen. While these specific combinations are generally authorized, it is noted in regulatory information that patients should be aware of all ingredients in their medications to avoid inadvertently exceeding maximum recommended dosages.


Q: Is Pulmocodeina considered a controlled substance in its regulatory classification?

Yes, because this medicine contains codeine, it is classified as a controlled substance by regulatory bodies in the United States. It is typically listed under Schedule II, III, or V, depending on its specific formulation and strength.


Q: Why might a doctor prescribe Pulmocodeina over a cough syrup without codeine?

Regulatory authorities, such as the FDA, advise that codeine-containing medicines should be reserved for individuals who meet specific criteria. This generally includes patients for whom alternative treatments, such as non-opioid antitussives, have not been tolerated or are considered inadequate for relieving their cough symptoms.


Q: Is there evidence available on the effectiveness of Pulmocodeina for treating a cough from the flu?

The official indications state that the medication is intended for the temporary relief of coughs associated with upper respiratory symptoms. This general indication includes coughs that may stem from a common cold or similar acute respiratory illnesses.


Q: Can Pulmocodeina cause issues with urination or bladder control?

Opioid medicines can potentially affect the urinary tract system. Regulatory documents specifically note that the use of Pulmocodeina alongside other medicines that have anticholinergic effects may increase the risk of adverse reactions such as urinary retention.


Q: What should a patient do if the cough does not improve after using Pulmocodeina for a few days?

Official monitoring guidance states that if the cough does not improve or is unresponsive after five days or sooner, regulatory guidance recommends that a healthcare professional reevaluate the patient. This reevaluation is necessary to determine if there is a possible underlying disease or pathology causing the persistent cough.


Q: Does Pulmocodeina contain any ingredients that could affect a drug test?

Yes, the active ingredient, codeine, is metabolized by the body into several substances, including morphine. Both codeine and its metabolites can be detected in many standard drug tests, and this is a documented consideration related to potential drug screening.

How should Pulmocodeina be stored and disposed of?

The storage and disposal of Pulmocodeina (Codeine phosphate) must strictly follow official regulatory guidelines to maintain product quality and ensure safety.

Storage Requirements

The medicine must be stored at room temperature, generally below 25 C (77 F), and protected from environmental factors that can cause degradation. It must be kept in its original container, tightly closed, and away from excess heat, moisture, and direct light. It is mandatory that this product be kept out of the sight and reach of children to prevent accidental ingestion, which can be fatal.

Disposal Instructions

Unused or expired Pulmocodeina must not be thrown in household trash or poured down a sink or toilet. The official method for discarding this medicine is to immediately return it to a pharmacy or an authorized drug take-back program or disposal location for proper pharmaceutical waste handling. Timely disposal of any unneeded opioid-containing product is required.

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

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