Answer
It is long acting and usually supports ongoing control. Some specifically licensed formoterol-containing inhalers may also be used for symptom relief, depending on the exact product and prescription.
Sources for this answer
- Oxis Turbohaler 12, inhalation powder — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.