My 86 year old old husband who is type 2 diabetic on sitagliptin he recently spent time in hospital with a chest infection on2 antibiotics after a few days out of hospital GP found chest infection wasn’t completely gone so another course of antibiotics he always had good control of diabetes now finds it’s not going below 11.6 sometimes 10 could the antibiotics have caused it also now taking multivitamins could they cause a rise in blood sugar thank you for any answers