Right, fly a drone out, land it somewhere, and deliver an epi-pen somehow, to someone.
Because we all know every possible epi-pen is stashed on drones that are on orbit around a city 24/7.
Sending a chopper (or ambulance) full of Paramedics is PRECISELY what you are going to be able to do in almost ALL situations.
In what situation could you not do the same with a simple ambulance dispatched from the nearest fire department, or by sending a helicopter? And when that ambulance or helicopter arrives it will not only have the epi-pen, but oxygen, a defibrillator, a, trache kit, plasma, bandages, most drugs you would ever need in the field, back board, stretcher, and, let me see, there was something else, what was it, OH YEAH, I remember now, TRAINED PARAMEDICS, and TRANSPORT.