The cartridges go in a pen.
As to the labels, is the writing on the cartridges in a foreign language? The label is a legal requirement if so showing the item information in English.
That's a dangerous thing to do. It contains a battery that, when heated in an incinerator, could be a problem.
Abbott states that it should be disposed of as a battery...
The NHS website states that if there are no problems for 2 years, then it should be every 2 years
https://www.nhs.uk/conditions/diabetic-eye-screening/