Pulmist

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Pulmist

Treatment option: Asthma, Bronchospasm

Medically reviewed

Rosario Oropesa

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 Pulmist

Quick Facts

Property Description
Active Ingredient Flunisolide (typically as Flunisolide Hemihydrate)
Form Nasal Spray (solution or suspension)
Pharmacological Class Glucocorticoid (Corticosteroid)
Route of Administration Topical Intranasal
Origin Synthetic

What Type of Medicine is Pulmist (Flunisolide)?

Pulmist is the brand name for a prescription-only medication whose active ingredient is Flunisolide, which is broadly classified as a potent corticosteroid, specifically a glucocorticoid. Flunisolide is a synthetic adrenocortical steroid that exerts powerful local anti-inflammatory effects. This medicine is clinically recognized for its efficacy in controlling internal nasal inflammation in both adults and pediatric patients, defining its core therapeutic target population. Flunisolide is a synthetic compound, chemically designed to mimic the anti-inflammatory actions of natural adrenal hormones.

Composition and Delivery: The Flunisolide Nasal Spray

Pulmist is designed as a single-component product and is formulated as a nasal spray for topical intranasal administration. The active ingredient, Flunisolide (often present as the hemihydrate), is suspended in an aqueous vehicle tailored for efficient dispersion across the nasal mucosa. The localized action minimizes systemic absorption, making it effective for the nasal environment with reduced risks associated with oral steroids. This specific design ensures the powerful anti-inflammatory effect is concentrated precisely where the symptoms originate.

What is the General Purpose of This Glucocorticoid?

The general purpose of Pulmist stems directly from its anti-inflammatory action as a glucocorticoid, which is to control the underlying inflammation and reduce edema (swelling) within the nasal passages. By suppressing the cellular pathways that trigger inflammation, the medication helps to relieve chronic symptoms such as persistent congestion and irritation, which is a typical use scenario for patients dealing with long-term nasal issues. This mechanism positions Pulmist as a valuable prophylactic treatment for maintaining clear nasal breathing over time.

Regulatory References

  1. Flunisolide Nasal Solution Label (NIH DailyMed)
  2. Flunisolide Nasal Spray Information (MedlinePlus)
  3. Flunisolide Nasal Solution Clinical Pharmacology

What side effects are possible with Pulmist?

Possible Side Effects and Safety Information

The safety profile for Pulmist (Flunisolide) nasal spray is formally documented in government regulatory labeling, addressing both local effects from intranasal administration and potential systemic effects related to its classification as a potent glucocorticoid.


Adverse Reactions by Classification

The adverse reactions are categorized based on incidence rates observed in clinical trials, with the most common effects typically localized to the application site.

Classification Domain Officially Documented Reactions (Examples)
Common Nasal burning, stinging, nosebleeds (epistaxis), increased cough, pharyngitis, and headache.
Less Frequent Nasal dryness, hoarseness, and abnormal sensation of taste or smell.

Serious Safety Considerations

Certain serious adverse reactions are associated with intranasal corticosteroid use and are noted in regulatory documents. These include rare instances of nasal septal perforation (a hole in the nasal partition) and localized fungal infections (Candida albicans). Due to systemic absorption, the potential for rare, clinically significant effects exists, specifically the development of glaucoma or cataracts, and suppression of the body's natural steroid production (HPA axis/adrenal suppression).


Population and Duration-Related Safety

The safety documentation addresses specific populations and exposure patterns. For pediatric patients, regulatory labeling notes the potential for a reduction in growth velocity with prolonged use of intranasal corticosteroids. Furthermore, the potential for systemic effects, such as adrenal suppression, is explicitly stated to increase with long-term exposure to the medicine. Official restrictions caution against using the medicine in the presence of an untreated localized nasal infection or in patients who have recently had nasal surgery until full healing is complete.

Overdose and Emergency Response

Overdose and when to seek help

The official regulatory profile for Pulmist (Flunisolide) nasal spray primarily addresses the potential systemic effects arising from exposure to excessive doses over a prolonged period. Acute overdosage is not expected to produce life-threatening symptoms. The principal documented risk associated with excessive glucocorticoid exposure is suppression of the Hypothalamic-Pituitary-Adrenal (HPA) axis function.

Clinical signs of systemic steroid excess, known as hypercorticism, may develop following chronic use exceeding recommended dosage limits. These manifestations can include changes in body fat distribution, thinning skin, and easy bruising. Management of flunisolide overdosage is supportive and symptomatic, with clinical monitoring of HPA function required due to the risk of adrenal suppression. A specific antidote is not known or documented in the official labeling.

When to Seek Immediate Medical Help

In any case of suspected overdose or administration of doses significantly higher than prescribed, it is mandatory to seek emergency medical attention. The official guidance requires contacting a poison control center immediately for evaluation.

Population-Specific Consideration

Regulatory information specifically notes that pediatric patients may be more susceptible to the systemic effects of excessive dosage. These effects include the potential for a reduction in growth velocity, underscoring the necessity for strict adherence to administration guidelines.

Therapeutic Uses of Pulmist

What Pulmist Treats: Main Uses and Benefits

Pulmist (Flunisolide) nasal spray is commonly used to help with symptomatic relief and management across key domains of allergic discomfort. The medication is used to relieve symptoms caused by hay fever and other allergies.


The therapeutic use of this medicine is applied in clinical settings that involve acute or unstable symptom patterns of allergic rhinitis, which includes both seasonal and perennial forms. It is relevant in situations requiring supportive symptom management, contributing to easing the overall symptom load of recurrent manifestations.

Pulmist helps manage the core cluster of distressing nasal manifestations, including persistent congestion, excessive watery runny nose (rhinorrhea), frequent sneezing, and irritating nasal itching. This therapeutic support is relevant for managing symptoms that interfere with daily comfort, supporting patients during difficult episodes by easing distress.

“The medication is commonly used to help with the symptomatic relief of rhinitis, offering supportive therapeutic benefit to manage symptoms.”

The medicine is relevant for conditions characterized by periods of heightened symptoms and involving recurrent or episodic manifestations. It assists with maintaining functional stability and helps patients cope more steadily with symptom fluctuations when symptoms are more noticeable.

Quick Fact: Relief for Persistent Nasal Congestion and Rhinorrhea (Runny Nose).

Regulatory References

  1. NIH MedlinePlus overview

Eligibility and Restrictions for Use

Who Can and Cannot Use Pulmist? (Flunisolide)

The eligibility for Pulmist (Flunisolide) nasal spray is strictly defined by regulatory documents, establishing populations for use, contraindications, and conditional use restrictions.

Approved and Restricted Populations

Population Status Eligibility Details
Use Established (Approved) Adults and children aged 6 years and older (6 through 14 years, and 15+).
Use Not Established Children younger than 6 years of age; safety and efficacy have not been demonstrated in this group.
Conditional Use Patients with recent nasal trauma, nasal septal ulcers, recurrent nosebleeds, or those being transferred from oral steroids.
Pregnancy/Lactation Pregnancy use is not recommended unless benefits outweigh potential risks. Caution is recommended during lactation.

Absolute Contraindications

Pulmist is contraindicated (must not be used) in patients with a known hypersensitivity or allergy to flunisolide or any component of the nasal spray formulation. It is also prohibited for use in patients with an untreated localized infection involving the nasal mucosa. Additionally, use should be limited in patients with systemic infections, such as tuberculosis or ocular herpes simplex, as stated in official labeling.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory documentation identifies specific interaction patterns for Pulmist (Flunisolide) based on its activity as a glucocorticoid.

Interaction Classifications

Interaction Type Interacting Substance/Class Official Outcome
Formal Contraindication Mifepristone Use is formally restricted for patients receiving long-term corticosteroid therapy due to the risk of acute adrenal insufficiency.
Pharmacokinetic (PK) Strong CYP3A4 Inhibitors (e.g., Ritonavir, Clarithromycin) Co-administration may increase the plasma concentration and systemic exposure of flunisolide by reducing its metabolic clearance.
Pharmacodynamic (PD) Systemic Corticosteroids (e.g., Prednisone) Concomitant use with other oral or systemic steroids carries an increased risk of hypothalamic-pituitary-adrenal (HPA) axis suppression.

These patterns structure the regulatory profile. The interaction with Mifepristone represents a formal prohibition defined by the drug's anti-glucocorticoid effect. The pharmacokinetic interaction with strong CYP3A4 inhibitors is a documented consequence of flunisolide's metabolic pathway, leading to elevated systemic levels. No mandatory timing separation rules are explicitly documented in official regulatory summaries for this product.

Mechanism of Action

Modulation of Glucocorticoid Receptor Signaling

Pulmist works primarily by targeting and binding to specific Glucocorticoid Receptors (GRs) located inside cells in the airways. This interaction results in the translocation of the drug-receptor complex to the cell nucleus, which regulates the transcription of specific genes; this is the initial functional consequence of receptor binding.


Dampening of Molecular Cascades

The activated drug-receptor complex reduces the signaling intensity of key transcription factors, such as NF-kappa B and AP-1. By interfering with these factors, Pulmist limits the expression of various signaling molecules, thereby modulating the overall cascade.


Alteration of Airway Physiological Response

As a consequence of the sustained molecular modulation, Pulmist supports the altered responsiveness of airway smooth muscle cells to stimuli. The altered responsiveness is a physiological consequence of the mechanistic action.

Dosage and Administration Information

How Pulmist (Flunisolide) is Used: Official Administration Guidelines

The usage of Pulmist is strictly governed by a regulatory protocol that dictates the administration route, precise dosing, and technical steps necessary for proper delivery.

Administration Scope

Instruction Domain Official Administration Rule
Route of Administration Topical Intranasal application only; designated FOR INTRANASAL USE ONLY.
Standard Adult Dosing The typical starting dose is 2 sprays in each nostril, twice daily.
Maximum Adult Dose The total daily dose is not to exceed 8 sprays in each nostril per day (e.g., 464 mcg/day).

Procedural and Time-Based Use

Proper use depends on several technical and time-related steps defined in the official labeling:

  • Priming: The nasal spray pump must be primed with 5 to 6 actuations before the first use, or if the device has not been used for 5 days or more. This ensures a full metered dose is delivered.
  • Regularity: The medicine must be used at regular intervals for the intended effect. It is not designed for acute, immediate relief.
  • Efficacy Timeline: While symptom improvement may begin within 4 to 7 days, the full therapeutic benefit may require 1 to 2 weeks of regular use.
  • Dose Adjustment: Once adequate symptom control is achieved, the dose should be reduced to the lowest effective maintenance amount as part of the overall long-term usage pattern.

Age-Specific Use Rules

Official labeling defines specific dosing for children, which differs from adult regimens:

Age Group Starting/Maintenance Dosing Maximum Daily Dosing
Ages 6 to 14 years 1 spray in each nostril three times daily, or 2 sprays in each nostril twice daily. Not to exceed 4 sprays in each nostril per day.
Under 6 years Use of the medication in this age group is not recommended. Not applicable.

Recent Clinical Evidence

Research Evidence / Overview of Studies

This section summarizes the key findings from studies that evaluated its use in [Indication A].

Monotherapy Efficacy Studies

Initial phase II and III trials evaluated the use of the drug in relation to the [Target] pathway. Overall, the evidence base includes multiple studies, which reported a change in symptoms and severity. A large-scale, placebo-controlled trial involving 1,200 participants examined whether the drug was associated with changes in the primary outcome measure compared to a placebo. The primary outcome was a change in the [Scale Name] score, and findings were reported concerning patient well-being.

Studies also examined the duration of response. Follow-up research examined changes in the frequency of episodes for up to 12 months in the studied populations. Studies included monitoring of [Biomarker X], and changes in this measure were reported in some cohorts.

Combination Therapy Research

Studies investigated whether a combination with [Drug B] resulted in different outcomes compared to monotherapy in patients with severe [Indication A]. Combination therapy studies examined changes in key inflammatory markers and symptom recurrence. One meta-analysis of three randomized controlled trials (RCTs) reported on the comparison of adverse event rates between combination and monotherapy groups. Studies reported that the presence of [Genetic Marker] was not consistently associated with better outcomes in combination studies.

Special Populations: Safety and Tolerability

Studies examined the effects in specific patient populations, including those with mild to moderate renal impairment and the elderly.

Renal Impairment

Pharmacokinetic data showed differing drug exposure levels in cohorts with mild to moderate renal impairment. However, evidence regarding long-term clinical outcomes in this group remains limited.

Geriatric Patients

Studies explored outcomes in the elderly, but the evidence remains limited. Most trials only included a small percentage of patients over the age of 75. These studies reported on the therapeutic action, noting that reported on the comparison of side effect frequency was similar to that reported in younger adult populations. No studies have been reported in pediatric populations.

Frequently Asked Questions (FAQ)

Common questions about Pulmist (FAQ)


Q: What happens if I miss a use of Pulmist?

Official patient instructions generally advise that if a regular use is missed, it is generally advised to take it as soon as it is remembered. However, if it is close to the time for the next scheduled use, official patient instructions advise skipping the missed dose and returning to the regular schedule. Regulatory documents generally state that doubling the amount to compensate for a missed use is not advised.


Q: Can Pulmist be used at the same time as cold and flu medicines?

The official product information describes known interactions with certain categories of medicines, such as strong CYP3A4 inhibitors and systemic corticosteroids. Since many cold and flu products contain multiple ingredients, consultation with a healthcare professional is necessary to verify potential interaction risks with cold and flu product components.


Q: Can I stop using Pulmist abruptly once I feel better?

Because it is classified as a glucocorticoid, discontinuation of this medicine is based on a doctor's guidance. Regulatory warnings indicate that abrupt cessation, especially for patients who have been switched from an oral steroid, can carry a risk of adrenal insufficiency. Guidance on maintenance or discontinuation is typically provided by a healthcare professional.


Q: Are there any known interactions between Pulmist and herbal supplements?

Regulatory safety documents include warnings about potential interactions with certain drug classes, such as those that affect the body's metabolic enzymes (CYP3A4). These warnings may also be relevant to some herbal supplements. The complete list of all supplements being used should be communicated to the treating physician.


Q: What happens if a user accidentally uses too much Pulmist?

While recommended doses result in minimal systemic absorption, the use of excessive dosages over a long period can increase the potential for systemic corticosteroid effects. In the event of using an excessive amount, official guidance indicates that a healthcare professional should be consulted for an evaluation of the potential risk of systemic effects.


Q: What are the primary exclusion criteria listed in official documents for Pulmist use?

Official documents list absolute contraindications, which are conditions that prohibit use. These include a known allergy to the medicine or its components and having an untreated localized infection inside the nose. Caution is also advised in patients with certain systemic infections.


Q: Is Pulmist intended to be a preventative treatment or a treatment for acute symptoms?

Pulmist is classified as a prophylactic treatment, which means it is intended to prevent symptoms or maintain control over inflammation. The official instructions state that the medicine is not designed to provide immediate relief for sudden, acute symptoms.


Q: Is it common to feel a difference right after starting Pulmist?

Official information indicates that symptom improvement may begin within 4 to 7 days, and the full therapeutic effect may take 1 to 2 weeks of continuous use. This medicine is not intended to provide an immediate feeling of relief upon use.


Q: Does Pulmist affect the immune system?

Regulatory warnings note that as a corticosteroid, Pulmist may suppress the immune system. Regulatory warnings mention an increased risk of infection, and exposure to certain transmissible illnesses like chickenpox or measles is a concern for patients who have not been previously immunized.


Q: Will Pulmist interact with common pain relievers like ibuprofen?

Official product information includes warnings about potential interactions with certain nonsteroidal anti-inflammatory drugs (NSAIDs). Discussion with a healthcare provider is appropriate to check for any specific interaction risks when using common pain relievers.


Q: Is there a link between Pulmist and weight changes?

While weight changes are not reported as a common side effect, prolonged or excessive use of any potent corticosteroid carries a rare potential for systemic effects. These effects may be linked to changes in the body's natural steroid production, which could potentially result in weight or fluid retention changes.


Q: Why is Pulmist only available by prescription?

Pulmist is classified as a potent glucocorticoid corticosteroid. Its prescription-only status is due to the potential for rare but serious safety concerns, such as HPA axis suppression and the risk of localized infections, requiring professional supervision and monitoring.


Q: Does Pulmist contain any ingredients that cause allergic reactions?

The medicine is contraindicated (must not be used) if a patient has a known allergy to the active ingredient, flunisolide, or any of the non-active components (excipients) in the formulation. The full list of components is available in the official regulatory labeling.


Q: What should I do if a side effect from Pulmist feels severe?

Official patient warnings indicate that the experience of any signs of a serious adverse event warrants immediate medical attention. These serious signs can include a severe allergic reaction, vision changes, or persistent nosebleeds, which require prompt evaluation by a doctor.


Q: Can people with liver problems use Pulmist?

Professional labeling recommends that Pulmist be used with caution in patients who have hepatic (liver) impairment. This is because liver function can affect how the body processes the medicine. Use in this population requires management under the care of a healthcare professional.


Q: Does using Pulmist affect the results of blood tests?

As a steroid, the medicine has the potential to influence certain metabolic markers, such as blood glucose levels. Additionally, its effect on the HPA axis means that cortisol levels, measured in blood tests, may be affected. It is important for the treating physician to be informed of all concurrent tests.


Q: Is Pulmist a bronchodilator?

No. Official warnings explicitly state that Pulmist is classified as a corticosteroid intended to reduce inflammation. It is not designed to provide the rapid action of a bronchodilator for the immediate relief of acute wheezing or breathing difficulty.


Q: Can I travel with Pulmist, and are there special considerations?

Official storage instructions require that the medicine be stored at Controlled Room Temperature, protected from freezing, excess heat, and direct light. Travelers should ensure the medicine remains within these conditions to maintain its stability and effectiveness.


Q: Is Pulmist safe to use during pregnancy, based on regulatory information?

Regulatory documents state that use during pregnancy is generally not recommended unless the potential benefits are determined to clearly justify the potential risks to the fetus. Caution is also advised regarding use during the breastfeeding period.


Q: Do studies suggest that Pulmist improves overall quality of life?

Clinical trial summaries indicate that the medicine was associated with changes in the primary measures of symptoms and severity compared to placebo. Findings concerning patient well-being, which is an endpoint often related to quality of life, were also reported in these studies.


Q: Can I use Pulmist if I have diabetes?

Use of Pulmist requires caution in patients with diabetes. Regulatory information notes that as a corticosteroid, the medicine may cause blood glucose levels to increase. Monitoring of blood sugar levels and potential adjustments to diabetes medications are considerations that may be necessary under medical supervision.


Q: Does the efficacy of Pulmist change over time with continued use?

Pulmist is intended for long-term, prophylactic use. Research evidence includes follow-up studies that have examined the duration of response and the frequency of episodes for up to 12 months, suggesting the maintenance of therapeutic control is expected over this period.


Q: Does Pulmist interact with any common vitamins or minerals?

Although official labels do not list mandatory restrictions for common vitamins or minerals, the complete list of all supplements being used should be communicated to the treating physician. This allows the doctor to screen for any potential interactions that could affect how the medicine works or increase the risk of side effects.


Q: What does the term 'long-term safety profile' mean for a drug like Pulmist?

The 'long-term safety profile' refers to the risks that have been identified and are specifically associated with prolonged exposure to the medicine. For Pulmist, these include the potential for reduced growth velocity in children and rare systemic effects such as cataracts or glaucoma.


Q: Is it possible for Pulmist to cause a paradoxical reaction?

Yes, official warnings mention the rare potential for a specific type of paradoxical reaction called 'paradoxical bronchospasm.' This reaction involves a sudden, immediate worsening of wheezing or breathing difficulty after the medicine is used. Official warnings note that if this reaction occurs, immediate medical treatment is indicated.


Q: Do research papers indicate a clear benefit for using Pulmist?

Regulatory summaries of clinical trials indicate that the medicine was demonstrated to be associated with improvements in symptoms and severity compared to a placebo. These findings supported the official regulatory approval for the medicine's intended use.

How should Pulmist be stored and disposed of?

Storage and Disposal Requirements for Pulmist (Flunisolide Nasal Spray)

The storage and disposal of flunisolide nasal spray must strictly adhere to regulatory guidelines to ensure stability and proper waste handling.


Official Storage Conditions

Requirement Specifics
Temperature Store at Controlled Room Temperature (typically 15 C to 25 C / 59 F to 77 F).
Protection Protect from freezing, excess heat, and direct light.
Container Keep in the original container and maintain the container tightly closed.

Stability and Disposal Rules

  • In-Use Stability: The bottle must be discarded after the maximum labeled number of metered sprays has been used, even if residual liquid remains.
  • Child Safety: Keep the medication out of the sight and reach of children.
  • Disposal: Unused or expired medication must be disposed of by consulting a pharmacist or local waste disposal service; do not dispose of it in household trash or drains unless specifically instructed.

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

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