NSTK · 01.2026Independent supplement reference
NutriStack
Edition 1.0Updated July 13, 2026

Budesonide Inhaled

Prescription ·Exploratory record · not publication-reviewed ·Updated July 13, 2026

An inhaled corticosteroid used as a controller medication for persistent asthma. Available as a dry powder inhaler (Flexhaler) for older children and adults, and as a nebulizer suspension (Respules) for infants and young children. Budesonide has a favorable safety profile, including the most extensive safety data in pregnancy among all inhaled corticosteroids. Also available as an oral formulation (Entocort) for inflammatory bowel disease and as a nasal spray (Rhinocort) for allergic rhinitis.

Evidence tier
Strong
Indexed sources
10 2004–2024
Interactions
0
Depletes
1 nutrient
Read the sources → Compare profiles
Publication status

Exploratory record, not a reviewed medical publication.

See the editorial and medical-review policies for the publication gate.

This generated database record has not completed a claim-level review by a qualified human medical reviewer. Bibliography links and evidence labels are not approval. The page remains available for reference and is excluded from search indexing.

In short

What the research says.

A quick, data-only summary. The full evidence, dosing, and sources are below.

An inhaled corticosteroid used as a controller medication for persistent asthma. NutriStack rates the supporting evidence as strong. Common adult dosing is Flexhaler: 180-360 mcg BID (adults); Respules: 0.25-1 mg via nebulizer BID (children 12 months-8 years); titrate to lowest effective dose (as prescribed by your physician), though a prescriber sets the actual dose. With long-term use it can deplete calcium. This profile indexes 10 sources.

What it's good for
  • Controller therapy for persistent asthma (adults and children >=6 months)7,3
  • Nebulized form for infants and young children unable to use inhalers10
  • Most pregnancy safety data of any ICS8,9
  • Reduces asthma exacerbations and improves lung function3,6
  • Once- or twice-daily dosing
What to watch for
  • Oral candidiasis (thrush)
  • Dysphonia (hoarseness)
  • Cough and throat irritation
  • Known hypersensitivity to budesonide or any component1,2
  • Primary treatment of acute asthma attacks or status asthmaticus2,3

The bottom line

Evidence rating strong. Most-documented uses: controller therapy for persistent asthma (adults and children >=6 months), nebulized form for infants and young children unable to use inhalers, most pregnancy safety data of any ics. 10 sources indexed (2004–2024), with 0 interaction records on file.

The science

How it works, mechanistically.

Core mechanism

Binds to the intracellular glucocorticoid receptor and modulates inflammatory gene transcription. The activated receptor complex suppresses NF-kB and AP-1 transcription factors, reducing the production of pro-inflammatory cytokines, chemokines, and adhesion molecules. Budesonide undergoes high first-pass hepatic metabolism (~90%), resulting in low systemic bioavailability from the swallowed portion. Its high receptor affinity and lipophilic ester conjugation in airway tissue provide prolonged local anti-inflammatory effect.

Class
Inhaled Corticosteroid
Absorption
Fat-soluble; take with food
Dosing

Dosing & protocol.

Common range
Flexhaler: 180-360 mcg BID (adults); Respules: 0.25-1 mg via nebulizer BID (children 12 months-8 years); titrate to lowest effective dose (as prescribed by your physician)
Recommended form
Dry powder inhaler (DPI) or nebulizer suspension

Delivered by inhalation directly to the airways. Systemic bioavailability approximately 6-13% (Flexhaler) or 6% (Respules) due to high first-pass metabolism. Rinse mouth after use to prevent oral candidiasis. For nebulizer use, use a mouthpiece rather than face mask to reduce facial skin deposition.3

Depletions

What it depletes.

Nutrients this medication can lower over time, and what to replace.

Calcium

Mild

Long-term or high-dose inhaled corticosteroid exposure can reduce bone formation and contribute to poorer calcium balance.

Replace CalciumMonitor Bone density trend + serum calcium when indicatedOnset Usually over months to years of high-dose therapy
Safety

Full safety detail.

Side effects

  • Oral candidiasis (thrush)
  • Dysphonia (hoarseness)
  • Cough and throat irritation
  • Headache
  • Nasopharyngitis
  • Adrenal suppression (with high-dose chronic use)
  • Growth suppression in children (small effect, ~0.5 cm/year)

Contraindications

  • Known hypersensitivity to budesonide or any component1,2
  • Primary treatment of acute asthma attacks or status asthmaticus2,3
  • Active or quiescent pulmonary tuberculosis
  • Untreated systemic fungal, bacterial, viral, or parasitic infections
Sources

Sources, by evidence tier.

Numbered references. Citations throughout the page link here.

Meta-analyses & systematic reviews

3

Randomized controlled trials

2

Reference material

5
FAQ

Common questions.

Quick answers about Budesonide Inhaled, drawn from the data on this page.

What is Budesonide Inhaled?

An inhaled corticosteroid used as a controller medication for persistent asthma. Available as a dry powder inhaler (Flexhaler) for older children and adults, and as a nebulizer suspension (Respules) for infants and young children. Budesonide has a favorable safety profile, including the most extensive safety data in pregnancy among all inhaled corticosteroids. Also available as an oral formulation (Entocort) for inflammatory bowel disease and as a nasal spray (Rhinocort) for allergic rhinitis.

What is Budesonide Inhaled used for?

Commonly cited benefits of Budesonide Inhaled include: Controller therapy for persistent asthma (adults and children >=6 months); Nebulized form for infants and young children unable to use inhalers; Most pregnancy safety data of any ICS; Reduces asthma exacerbations and improves lung function; Once- or twice-daily dosing. NutriStack rates the overall evidence as strong.

What is a typical dose of Budesonide Inhaled?

A typical adult dose of Budesonide Inhaled is Flexhaler: 180-360 mcg BID (adults); Respules: 0.25-1 mg via nebulizer BID (children 12 months-8 years); titrate to lowest effective dose (as prescribed by your physician). The commonly recommended form is Dry powder inhaler (DPI) or nebulizer suspension. These are general ranges, not personalized advice; confirm the right dose with a clinician.

What are the side effects of Budesonide Inhaled?

Reported side effects include oral candidiasis (thrush), dysphonia (hoarseness), cough and throat irritation, headache, nasopharyngitis, adrenal suppression (with high-dose chronic use). This is educational information; check with a healthcare professional before use.

How strong is the evidence for Budesonide Inhaled?

NutriStack rates this as Strong, meaning multiple high-quality meta-analyses or systematic reviews converge on the same finding. Full tier criteria are at https://nutristackapp.com/methodology/evidence-tiers.

Use this with your stack

Budesonide Inhaled in NutriStack.

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NutriStack is an informational and organizational tool, not a medical service, and not a substitute for professional advice. Always consult a qualified healthcare professional before starting, stopping, or changing any supplement or medication.