Answer
Obtain a replacement Trimbow 172/5/9 micrograms pressurised inhaler when the dose counter shows 20, and stop using the old inhaler at 0 because remaining puffs may not deliver a full actuation.
Sources for this answer
- Trimbow pMDI 172 micrograms/5 micrograms/9 micrograms pressurised inhalation, solutionChiesi Limited · emc · SmPC §4.2 Posology and method of administration · Version 3Document updated
Sources checked