Preventer inhalerSteroid combination
Budesonide-Formoterol
Inhaler
Quick Summary
Budesonide reduces airway inflammation and formoterol keeps airways open for longer.
Asthma
COPD
Medical Uses
Asthma: Daily control and, in some plans, as reliever.
COPD: Reducing symptoms and flare-ups.
How it's taken
Use it as prescribed in your asthma or COPD plan. Rinse your mouth after use.
Your doctor decides the right dose for you and how long to take it.
Your doctor decides the right dose for you. Follow their instructions and the label.
Common Side Effects
Oral thrush
Rinse your mouth to prevent it.
Hoarse voice
Sometimes.
Shakiness
Or palpitations.
Interactions
Beta blockers
Can reduce effect.
Critical Warnings
Don't stop suddenly
Even when well.
Worsening asthma
Black Box Warning: Needing it more often means you should see your doctor.
Sources and further reading
Last updated 21 October 2026. For more detail, see these trusted health organisations.
- Budesonide and Formoterol Oral Inhalation: drug information(opens in a new tab) · MedlinePlus, US National Library of Medicine