They might recommend Zofran (ondansetron), a prescription anti-nausea medication
The finer issue, beyond firmly establishing causation, is separating whether GLP-1s promote some specific cancer-fighting mechanism, or reduce cancer risk as a side effect of helping people lose weight
The net effect is very similar to eating a 1200 calorie diet while you might lose some weight in the short-term, you are likely setting yourself up for long-term failure because the damage eating so little will do to your metabolism
All you need to do is provide your insurance information
Oxygen radicals, nitric oxide, and peroxynitrite: redox pathways in molecular medicine
In fact, blockade of heme catabolism in the intestine by a heme oxygenase inhibitor can produce iron deficiency (Kappas et al., 1993)