Seebri

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Medically reviewed

Marina Burgos

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 Seebri

Property Description
Active ingredient Glycopyrronium (as the bromide salt)
Form Inhalation powder (capsules for DPI)
Pharmacological class Long-acting Muscarinic Antagonist (LAMA)
Common use Foundational, long-term airway maintenance
Origin Synthetic compound

What Type of Medicine is Seebri (Glycopyrronium)?

Seebri is a prescription medicine containing the active substance Glycopyrronium. It is fundamentally classified as a Long-acting Muscarinic Antagonist (LAMA) and functions as a bronchodilator. Glycopyrronium is a synthetic quaternary ammonium anticholinergic compound. The quaternary ammonium structure is a differentiating factor in its pharmacological profile, designed to minimize systemic effects by restricting its absorption outside of the target area. The medicine is characterized as a single-active ingredient product, or monotherapy, designed for foundational, long-term administration.


Composition and Delivery Form

The active ingredient in Seebri is Glycopyrronium, typically present as Glycopyrronium bromide, which acts on the body’s muscarinic receptors. Seebri is prepared as an inhalation powder, a key differentiating form from liquid nebulized anticholinergics, and is supplied in capsules for use with a dedicated Dry Powder Inhaler (DPI) device. This specialized DPI formulation is designed for ensuring efficient drug delivery to the airways. The powder formulation involves mixing the active compound with basic excipients, such as lactose, which acts as a carrier vehicle to ensure the medicine can be effectively aerosolized and inhaled.


Core Purpose: How Seebri Supports Airflow

The general purpose of Seebri is to help maintain open airways by supporting the relaxation of the bronchial smooth muscles. As a LAMA, its mechanism provides sustained bronchodilation by preventing the contracting action of the neurotransmitter acetylcholine. This continuous inhibitory effect is crucial for long-term airway support. By providing constant prevention against airway narrowing, the medicine supports easier and more consistent airflow. This action supports a typical use scenario: helping an adult patient with chronic respiratory issues manage their day-to-day breathing comfort and lung function as part of a maintenance therapy plan.

What side effects are possible with Seebri?

As an inhaled Long-acting Muscarinic Antagonist (LAMA), Seebri (glycopyrronium) has an official safety profile primarily characterized by anticholinergic-related effects and localized reactions, as documented in regulatory sources like the EMA and FDA.

Frequency-Classified Adverse Reactions

The most frequently reported adverse events are classified by incidence rates from clinical trials. Common reactions (occurring in 1% to 10% of patients) include dry mouth (which is frequently reported in the initial weeks of treatment), headache, nasopharyngitis, urinary tract infection, and cough [1.1, 1.4]. Reactions are grouped into System-Organ Classes (SOCs), with effects noted across the Gastrointestinal Disorders (e.g., dry mouth), Nervous System Disorders, and Renal and Urinary Disorders [1.2, 1.4].

Serious Safety Considerations and Constraints

Official labeling specifies potential serious adverse reactions. The medicine is associated with a risk of paradoxical bronchospasm, an acute event requiring immediate attention. Immediate hypersensitivity reactions, such as angioedema (swelling of the face, tongue, or throat), are also documented as serious risks [1.1, 1.4].

Population-Specific Notes

The anticholinergic nature of the drug dictates specific safety constraints. Caution is advised for use in patients with severe renal impairment due to potential increases in drug exposure [1.1]. Furthermore, use should be cautious in patients with narrow-angle glaucoma or pre-existing conditions that predispose to urinary retention, such as prostatic hyperplasia [1.4]. Concomitant use with other anticholinergic medications may lead to additive adverse effects [1.4].

Overdose and Emergency Response

Overdose and When to Seek Help

The official regulatory documents state that an overdose resulting from high doses of inhaled glycopyrronium is expected to produce exaggerated anticholinergic effects. These effects represent the primary clinical concern in an overdose situation.


Documented Overdose Presentations

Symptoms and signs that have been formally documented in official regulatory sources as potential overdose presentations include:

  • Ocular Effects: Increased intraocular pressure, blurred or disturbed vision, and eye reddening or pain.
  • Urinary Effects: Voiding difficulties (trouble passing urine) or signs of urinary retention.
  • Gastrointestinal Effects: Severe obstipation (constipation), nausea, and vomiting.

Serious or Urgent Outcomes: The development of signs of acute narrow-angle glaucoma is a documented risk associated with the anticholinergic class, which may be heightened in an overdose.


Emergency Actions Mandated by Regulators

If an overdose is suspected, immediate medical attention is required according to official prescribing information. Actions explicitly mandated by regulators include:

  1. Seek Emergency Medical Help: Immediately telephone a Poison Control Centre or go to the nearest emergency unit.
  2. Symptomatic Management: The recommended treatment is generally symptomatic and supportive care for the anticholinergic effects.

The regulatory label notes that acute intoxication by inadvertent oral ingestion (swallowing the capsule) is unlikely due to the medicine's low systemic absorption.

Therapeutic Uses of Seebri

Seebri (glycopyrronium) is commonly used to help with the long-term management of symptoms related to Chronic Obstructive Pulmonary Disease (COPD). The medicine is applied in addressing conditions presenting with systemic or localized discomfort, which may include manifestations of chronic bronchitis and emphysema. It is applied across domains where additional symptomatic support is needed for conditions where symptoms may intensify temporarily.

Quick Fact: Supports easing difficulty breathing

This medication is applied in addressing symptom clusters related to airflow obstruction that interfere with daily functioning. The medication is applied in scenarios where additional management of discomfort is required in contexts involving heightened systemic burden, assisting with maintaining functional stability. This provides supportive relief when symptoms interfere with routine activities, contributing to improved comfort. The medication helps patients “cope more steadily with symptom fluctuations,” which supports general well-being during symptomatic phases and contributes to easing the overall symptom load.

Regulatory References

  1. European Medicines Agency (EMA) overview

Eligibility and Restrictions for Use

Eligibility for Seebri (Glycopyrronium) — Official Regulatory Information

This section describes official eligibility and non-eligibility requirements for Seebri, strictly based on government regulatory documents.

Classification Eligibility Statement
Absolute Contraindications Prohibited for patients with known hypersensitivity to glycopyrronium or any excipient. Prohibited for individuals with rare hereditary problems like galactose intolerance, total lactase deficiency, or glucose-galactose malabsorption.
Age-Related Rules Use is not recommended in the pediatric population (under 18 years) as safety and efficacy have not been established. Older adults (e.g., 75 years and older) can use the recommended dose.
Specific Conditional Use Patients with severe renal impairment (eGFR <30 mL/min/1.73 m^2), including those requiring dialysis, should use Seebri only if the expected benefit outweighs the potential risk due to potential increases in drug exposure. No dose adjustment is required for hepatic impairment.
Caution Required Must be used with caution in patients with narrow-angle glaucoma or urinary retention, and in those with a history of certain cardiovascular diseases (e.g., unstable ischaemic heart disease or prolonged QTc interval).
Pregnancy/Lactation Status Use during pregnancy should only occur if the expected benefit justifies the potential risk. Caution is advised during breastfeeding as it is unknown if the drug is excreted in human milk.

These regulatory classifications define the mandatory boundaries for Seebri use, ranging from absolute prohibition (contraindication) to conditional use that requires careful assessment against potential risk.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory documents define the product's interaction profile based on two main categories: pharmacodynamic reinforcement and a specific pharmacokinetic interaction.

Category Interaction Entity Official Regulatory Restriction / Outcome
Pharmacodynamic Interaction Other Anticholinergic medications Avoid co-administration due to the risk of additive anticholinergic effects.
Pharmacokinetic Interaction Cimetidine (Organic Cation Transport Inhibitor) Cimetidine increased total systemic exposure (AUC) by 22%; however, this change is officially deemed not clinically relevant.

The most prominent constraint is the instruction to avoid the simultaneous use of Seebri with other anticholinergic-containing drugs, as this combination has the potential for additive effects. Although no formal drug interaction studies have been conducted with all medications, Seebri has been used concomitantly with common treatments for Chronic Obstructive Pulmonary Disease, including sympathomimetic bronchodilators, methylxanthines, and inhaled or oral steroids, without clinical evidence of interaction.

Regarding elimination, the drug is primarily cleared from the body by renal excretion. Consequently, the use of Seebri in patients with severe renal impairment (eGFR less than 30 mL/min/1.73 m^2) should be considered only if the potential benefit outweighs the documented risk of increased systemic exposure.

Mechanism of Action

How Seebri Works

This section focuses exclusively on the biological mechanism of glycopyrronium, outlining the precise molecular actions that determine its physiological effects in the airways.


️ Molecular Mechanism: Blocking the Contraction Signal

Glycopyrronium acts as a competitive antagonist on the muscarinic acetylcholine receptors ( M3) located on the bronchial smooth muscle cells. The molecule physically occupies these receptors, thereby blocking the binding of the natural neurotransmitter, acetylcholine ( ACh). This interference with the ACh signal directly inhibits the molecular cascade that triggers muscle contraction, resulting in a physiological change: the sustained relaxation of the bronchial smooth muscle.


⏱️ Long-Acting Function and Airway Relaxation

The prolonged effect of the mechanism is determined by the drug's unique binding kinetics: it exhibits a very slow dissociation rate from the M3 receptor. This extended presence ensures the contraction signal remains blocked for up to 24 hours, which establishes a continuous state of sustained bronchodilation—the physiological widening of the airways. Furthermore, the drug's quaternary ammonium structure restricts its interaction to receptors primarily within the pulmonary system.

Dosage and Administration Information

Seebri is provided as a powder in hard capsules that must be used only for oral inhalation via the specific inhaler device supplied with the medicine (either NEOHALER or BREEZHALER). The capsules must never be swallowed, as the intended lung effects will not be achieved.

Official Dosing and Frequency

Administration frequency depends on the specific product formulation prescribed:

  • SEEBRI NEOHALER (e.g., US): Inhale the contents of one 15.6 mcg capsule twice daily (e.g., morning and evening).
  • SEEBRI BREEZHALER (e.g., EU, Canada): Inhale the contents of one 44 micrograms delivered-dose capsule once daily.

It is essential to take the medicine at the same time of the day every day. Do not use more than the prescribed daily maximum (one or two capsules). The medicine is strictly for long-term, maintenance use, and is not to be used for the relief of sudden, acute breathing symptoms.

Administration Procedure and Special Populations

The capsules must be removed from the blister pack immediately before use and handled with dry hands. After placing the capsule in the device and piercing it, the patient must breathe in quickly and deeply to ensure the powder is inhaled. If powder remains in the capsule after the first inhalation, the steps should be repeated.

No dosage adjustment is required for geriatric patients (aged 75 years and older), patients with hepatic impairment, or those with mild to moderate renal impairment. For patients with severe renal impairment or end-stage renal disease, use should only proceed if the expected benefit outweighs the potential risk.

If a dose is missed, it should be taken as soon as possible, but patients must not take two doses on the same day to make up for the missed dose.

Recent Clinical Evidence

Research Evidence / Overview of Studies

This section outlines the research that has evaluated whether the drug was associated with changes in symptoms of Chronic Obstructive Pulmonary Disease (COPD) when studied in conjunction with other treatments. The content strictly reflects the findings and design of the relevant clinical trials.

Primary Efficacy Studies

Clinical trials, such as the Phase 3 GLOW (GLycopyrronium bromide in chronic Obstructive pulmonary disease airWays clinical study) program, investigated the change in lung function over periods up to 52 weeks in patients with moderate-to-severe COPD. The primary outcome measure was the change in scores on standardized lung function tests, such as the Forced Expiratory Volume in one second (FEV1).

  • Participants receiving the drug demonstrated statistically different FEV1 scores compared to the placebo group. The benefit in lung function was observed to be rapid in onset and sustained over 24 hours.
  • Secondary findings from these trials suggested an association with improved measures of breathlessness (dyspnea), better health status scores, and reduced use of rescue medication compared to placebo.

Research in Specific Patient Populations

Elderly Patients

Studies specifically examined adverse events and tolerability in patients aged 65 and older. No overall differences in the recorded incidence of adverse events were identified between the elderly and younger adult patient groups, though greater sensitivity in some older individuals cannot be excluded.

Safety Profile

The most commonly reported adverse events in clinical trials were related to the drug's anticholinergic effect, such as dry mouth. The incidence of serious adverse events was generally consistent with those expected in patients with moderate-to-severe COPD.

Frequently Asked Questions (FAQ)

Common questions about Seebri (FAQ)

Q: Is Seebri an inhaler that contains steroids?

A: According to official product information, the active substance in Seebri is glycopyrronium, which belongs to a class of medicines called Long-acting Muscarinic Antagonists (LAMA). Official drug information and its composition details do not identify corticosteroids as an active component.

Q: Do I need to keep taking Seebri even when I feel okay?

A: Official information describes Seebri as a long-term, maintenance treatment for chronic obstructive pulmonary disease (COPD). Maintenance treatment is generally described as continuous and long-term to help maintain stable airflow.

Q: Is Seebri generally safe for older adults or seniors?

A: Regulatory documents indicate that the medicine can be used at the recommended dose in older adults, including those 75 years of age and older. Official studies have not identified overall differences in effectiveness or safety that would require a different dose for the general elderly population.

Q: Are there specific warnings about Seebri for people with kidney or liver issues?

A: Caution is officially advised for patients who have severe renal impairment (severe kidney issues) due to the potential for increased drug exposure in the body. However, official information states that no dose adjustment is required for patients with hepatic impairment (liver issues).

Q: Does the time of day matter when using Seebri?

A: Official administration instructions recommend that the medication be taken at the same time each day. This consistency is important for maintaining the continuous bronchodilation effect, as described in official documents.

Q: What is the purpose of the device used to inhale Seebri?

A: The Seebri capsules contain a dry inhalation powder and must only be used with the dedicated inhaler device, such as the NEOHALER or BREEZHALER. The device is specifically designed to ensure the medicine is correctly converted into a fine mist and delivered effectively into the lungs.

Q: Is Seebri safe to use if I have an allergy to milk protein?

A: The capsules contain lactose, which is an excipient. Official guidelines advise caution for patients who have a severe hypersensitivity to milk proteins.

Q: How quickly should I expect to notice a difference after starting Seebri?

A: Clinical studies focusing on the drug’s effects show that glycopyrronium has a rapid onset of action on lung function. The medicine is intended to provide sustained bronchodilation as part of a continuous, long-term treatment plan.

Q: Does Seebri start working immediately after I take it?

A: The pharmacological effect of the drug is described as beginning shortly after inhalation. The medicine is intended to provide sustained relief, rather than immediate, acute symptom relief.

Q: Can Seebri be used as a rescue inhaler for sudden breathing problems?

A: Official labeling explicitly states that Seebri is intended for long-term maintenance treatment only. It is not indicated for the treatment of sudden or acute episodes of bronchospasm, and is not intended for use as a rescue therapy.

Q: Are there any common over-the-counter pain medications that interact with Seebri?

A: Regulatory documents focus on avoiding co-administration with other medications containing anticholinergic components, as this could potentially lead to additive effects. Official drug documents always recommend informing your doctor or pharmacist about all other medicines you take, including those bought without a prescription.

Q: How do I know if a side effect from Seebri is serious enough to mention?

A: Official patient documents describe serious signs or symptoms, such as severe allergic reactions or sudden, worsening breathing problems, that warrant immediate medical evaluation. The information also mentions signs of worsening narrow-angle glaucoma (eye pain, blurred vision).

Q: What are the expected benefits people typically see from Seebri?

A: Clinical studies have shown an association with improved measures of lung function. Secondary findings also suggest potential benefits such as reduced use of rescue medication and improved patient-reported breathlessness scores when compared to placebo.

Q: Is Seebri something I will have to take for the rest of my life?

A: The medication is officially indicated for the long-term, maintenance treatment of airflow obstruction in chronic obstructive pulmonary disease (COPD). The duration of therapy is a clinical decision that is not addressed in general regulatory information.

Q: Can Seebri make COPD symptoms worse initially?

A: Official labeling includes a specific warning about the risk of paradoxical bronchospasm. This is defined as the sudden worsening of breathing problems, such as wheezing or breathlessness, immediately following the use of the inhaler.

Q: Is it normal for my voice to change slightly after using this type of inhaler?

A: Voice alteration (hoarseness or dysphonia) is listed in official documents as a possible adverse reaction. This effect is reported in the post-marketing or clinical trial data.

Q: Is Seebri a brand name, and is there a generic version available?

A: Seebri is a brand name for the active substance glycopyrrolate. The availability of a generic equivalent may vary by region and is subject to local regulatory approvals.

Q: Does using Seebri affect my ability to drive or operate machinery?

A: Official regulatory information, such as the Summary of Product Characteristics (SmPC), states that glycopyrronium has no or negligible influence on the ability to drive and use machines.

How should Seebri be stored and disposed of?

Storage and Disposal Conditions for Seebri

Storage Requirements

Seebri capsules must be stored in the original blister packaging at all times to protect the inhalation powder from moisture and light. The medicine should be stored at room temperature, typically defined as not exceeding 25 C (77 F). Do not store the product in high-humidity areas, such as a bathroom, and keep it away from excessive heat.

Handling and Safety

Capsules should only be removed from the blister immediately prior to use with the inhaler device. Keep Seebri out of the sight and reach of children.

Disposal Instructions

Unused or expired Seebri must not be thrown away with household trash or poured down a drain. Consult a pharmacist or local waste disposal service for instructions on how to properly discard unwanted medicine. The empty capsule, after the medication has been inhaled, may be placed in household waste.

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

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