Restricted? As in used by vetrinarys and cure for all in the poorer parts of the world? Also good if there is something to stop hospital bacteria eating patient

Restricted? As in used by vetrinarys and cure for all in the poorer parts of the world? Also good if there is something to stop hospital bacteria eating patients in slices. Wish we had a wheel of antibiotics, were resistance makes the bacteria vulnerable to something on the opposite of the wheel.