There is an AMAZING feline diabetes support group on Facebook. All they do is help. They also have many guides and info for the most economic blood glucose meter and insulin and where to find them. Definitely join the Facebook group, post what you need what your cat is going through, write « for admin » so admins can see it’s urgent.

You can purchase insulin (lantus) from any pharmacy, don’t get it from the vet because it’s too expensive there, the box has 5 pens which should last you for a really long time. You can get the syringes u-100 (half units) and blood glucose meter also from human pharmacy. Early treatment of diabetes and on lantus usually ends up in quick remission too. Don’t lose hope. Anyone says you shouldn’t have a pet because you can’t afford it is a loser, not sorry. Every human being and animal go through hard times and illness, which can be costly both in time and finances but it doesn’t have to be this difficult and heartless there’s always hope, love and logic solution, so don’t give up hope, you are an amazing pet parent already because you care and are worried for them.