Answer
The selected products should be discarded 28 days after first opening, even if solution remains.
Sources for this answer
- Combigan — Current selected SmPCemc · Summary of Product Characteristics
- Brimonidine Tartrate /Timolol 2 mg/ml + 5 mg/ml eye drops, 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.