Answer
Trelegy Ellipta 92/55/22 micrograms inhalation powder has a shelf life of 2 years before opening the tray and 6 weeks after opening it.
Sources for this answer
- Trelegy Ellipta 92 micrograms/55 micrograms/22 micrograms inhalation powder, pre-dispensedGlaxoSmithKline UK · emc · SmPC §6.3 Shelf life · Version 12Document updated
Sources checked