Is this your experience, with the gut blockages, or is it something you have heard?
I'm somewhat concerned about your suggestions that insulin contains. I know of no insulin, or gliptin containing clozapine. My understanding is clozapine is not prescribed for diabetes.
Do you use insulin, or clozapine yourself? It really would be useful to tell us where you heard these things, because as someone who has been living with diabetes for a while, I'm struggling to understand your understanding of things.