Do they actually dispense drugs in the pure form (i.e. would anyone outside of a pharmacy have access to the drug in a medical setting), or are they diluted in liquid or maybe in a painkilling patch?
Illicit fentanyl and its derivatives are usually distributed in their pure form, to people who have no training in handling hazardous substances.
Sometimes first responders to fentanyl overdoses will not even be able to enter the room of the victim without hazmat suits, because accidentally breathing in fentanyl dust or touching a surface in which the dust has settled could kill them.