@CatAtTheWindow I always use the remaining medication for an extra dose. I’ve been on 10mg for ages now and it just seems a huge waste to throw all that medication away.
The reason pharmacies say not to, is for safety and it is a valid reason. You’d think that it would be straightforward but I’ve read all sorts of threads in this section of people doing odd things! Mind you, they do odd things just with the pen and the usual needles too. Once you’re not using the pen according to the instructions, then you are wholly responsible for getting the dose right and handling the additional equipment properly. I do it because I am happy that I can work out the maths and extract the medication carefully.
You would need 1ml syringes, often called insulin syringes, they have a fixed needle and can be 4,6 or 8mm long with a width (gauge) of 32g, or 30g. Buy them from an online pharmacy not Amazon. Eg UKMedi or similar.
https://ukmedi.co.uk/products/fms-micro-syringe-32g-8mm-1ml-fms-fms-32g-10ml-ukmedi-co-uk
You insert the needle through the red seal at the end of the pen where you normally attach the needle. Use gravity to help and hold the pen vertically, and extract the medication. Tap the syringe to get any air bubbles to the top, and then gently push them out. Then check how much medication you have, and push out any that you don’t want to inject.
A full dose is always 0.6ml for any pen.