Answer
The ADVANZ Pharma benzydamine hydrochloride 0.15% w/v oromucosal spray product has a shelf life of 2 years unopened and must be used within 6 months of opening.
Sources for this answer
- Benzydamine 0.15%w/v Oromucosal SprayADVANZ Pharma · emc · SmPC §6.3 Shelf life · Version 8Document updated
Sources checked