By law, if she herself dispenses drugs in a state (as opposed to the clinic she is working for dispensing them) she has to keep a *separate* inventory for that state - separate bottles, separate drug safes to lock them up, separate logs for audit.
Just out of curiosity, what happens if horse from State A needs ketamine (or some such) and all she has left in her inventory is ketamine for State B critters?
Does horse get State B ketamine- with your wife dealing with consequences later- or is Flicka out of luck?