My last stafford was diabetic, had to inject him daily. It's not bad once you get into it. The worst thing was the trips to the vets for blood glucose tests.
Never shake insulin, always roll it in your hands. It needs to be kept in the fridge but cold insulin hurts so I always took the chill off by rolling in my hands.
Always keep some powdered glucose in, if the animal goes hypoglaecemic it needs glucose, a solution mixed in water. You'll recognise a hypo as the cat will just seem to collapse.
I found the best place to inject was the neck as there's more skin than say the tummy. You can use a needle more than once, you'll know when it goes a bit blunt + you need a new one.
Good luck
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Tracey
Proudly owned by:
Zetstaff Blue Demon (Boris)
Crimsonstaffs Dream Girl (Tilly)
Tugga the Bugga (Tuggs)
Dympner Great Chart (Buster) - RIP big boy xxx