2.5 U. Has been on this higher dose for about 1.5 months. I'm giving her 5 mg of long=acting antihistamine daily that helps a bit. Maybe after her dental surgery next wk she will be OK to take a lower dose.I think perhaps I read this once. I know in large doses it can sting. What dose does your cat get? How long on lantus and when did it start? Sorry your cat is itchy.
I see. thanks for your reply.My cat is not diabetic. She has EGC and dermatitis and zyrtec really helps. Before she was on it she sometimes scratched enough for her ear to bleed.