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In studies with inhaled budesonide,

Targets the lungs, not the body1

Budesonide inhalation pharmacology

*In vitro studies with human liver homogenates have shown that budesonide is rapidly and extensively metabolized.

The relationship between pharmacologic properties and clinical efficacy has not been established.

  • Studies in asthmatic patients have shown a favorable ratio between pulmonary anti-inflammatory activity and systemic corticosteroid effects over a wide range of doses of inhaled budesonide. This is explained by a combination of a relatively high local anti-inflammatory effect, extensive first-pass hepatic degradation of orally absorbed drug (85%-95%), and the low potency of formed metabolites
  • Because of the possibility of systemic absorption of inhaled corticosteroids, patients treated with PULMICORT FLEXHALER should be observed carefully for any evidence of systemic corticosteroid effects
  • PULMICORT FLEXHALER is indicated for the maintenance treatment of asthma as prophylactic therapy in adult and pediatric patients 6 years of age or older



1. PULMICORT FLEXHALER Prescribing Information. Wilmington, DE: AstraZeneca Pharmaceuticals LP; 2016.


  • PULMICORT FLEXHALER is not a bronchodilator and is NOT indicated for the relief of acute bronchospasm.
  • Particular care is needed for patients who are transferred from systemically active corticosteroids to PULMICORT FLEXHALER because deaths due to adrenal insufficiency have occurred in asthmatic patients during and after transfer from systemic corticosteroids to less systemically available inhaled corticosteroids.
  • Due to possible immunosuppression, potential worsening of infections could occur. A more serious or even fatal course of chickenpox or measles can occur in susceptible patients.
  • It is possible that systemic corticosteroid effects such as hypercorticism, reduced bone mineral density, and adrenal suppression may appear in a small number of patients, particularly at higher doses.
  • Inhaled corticosteroids may cause a reduction in growth velocity. The long-term effect on final adult height is unknown.
  • Rare instances of glaucoma, increased intraocular pressure, and cataracts have been reported following the inhaled administration of corticosteroids.
  • Hypersensitivity reactions, including anaphylaxis, have been reported with budesonide.
  • PULMICORT FLEXHALER contains small amounts of lactose, which contains trace levels of milk proteins. In patients who have severe milk protein allergy (not those who are lactose intolerant) cough, wheezing, or bronchospasm may occur.
  • Adverse reactions that occurred at a rate of ≥ 1% are: nasopharyngitis, nasal congestion, pharyngitis, allergic rhinitis, viral upper respiratory tract infection, nausea, viral gastroenteritis, otitis media, and oral candidiasis.


  • PULMICORT FLEXHALER is indicated for the maintenance treatment of asthma as prophylactic therapy in adult and pediatric patients 6 years of age or older.

Please click here for full Prescribing Information for PULMICORT FLEXHALER.

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