Answer
No. It is maintenance treatment and should not treat a sudden asthma attack. Use the prescribed fast-acting reliever for acute symptoms.
Sources for this answer
- Trimbow pMDI 172 micrograms/5 micrograms/9 micrograms pressurised inhalation, solution — 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.