Answer
Use the dose indicator. Stop using the inhaler when it reaches zero, even if the canister still appears to spray.
Sources for this answer
- Bevespi Aerosphere 7.2 micrograms/5 micrograms pressurised inhalation, suspension — 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.