See the DrugPatentWatch profile for Ongentys
What is Ongentys, and what “expiry date” usually means
Ongentys is the brand name for opicapone, a medicine used for Parkinson’s disease. The “expiry date” on the package tells you the last date the manufacturer guarantees the product’s quality and safety when it has been stored correctly.[1]
Where to find the Ongentys expiry date on the box or blister
You can usually find the expiry date on the outer carton and/or on the blister strip. It’s typically shown as an explicit date or as “EXP” followed by the month and year.[1]
What happens if you take Ongentys after the expiry date
Taking a medicine after its expiry date is not recommended because the manufacturer cannot guarantee potency or stability past that date. If you’ve kept Ongentys longer than the expiry date, it’s safer to replace it rather than use it.[1]
How long you can use Ongentys after opening or reconstituting
Ongentys tablets are packaged in blisters, so “opening” generally doesn’t create a different expiration date beyond what’s printed. Follow the storage and handling instructions on your specific pack; if you have a different pack type or instructions (for example, pharmacy repackaging), use the expiry date that comes with that exact product.[1]
Storage rules that affect expiry validity
Expiry dates assume proper storage. Follow the conditions printed on your package (commonly room-temperature storage and protection from moisture). If the tablets have been exposed to heat or moisture, ask a pharmacist whether you should discard them even if the expiry date hasn’t passed.[1]
If you tell me your pack details, I can help interpret the date
If you share what your label says (for example, “EXP 2026-09” or “EXP Sep 2026”) and whether it’s the box or the blister, I can help you interpret it.
Sources
[1] https://www.nhs.uk/conditions/medicines/using-medicines/expiry-dates/