They're not equivalent (that is, it can't be freely substituted by a dispenser) only because the devices are mechanically different. Knowing how to use an EpiPe

They're not equivalent (that is, it can't be freely substituted by a dispenser) only because the devices are mechanically different. Knowing how to use an EpiPen doesn't mean knowing how to use an Adrenaclick, even if they are aministering the same drug in the same dose using more-or-less the same kind of mechanism. It's that "more-or-less" that's the key; since they differ in the way they're used and administration is quite time-sensitive, you can't assume that a person trained to use an EpiPen will be able to use an Adrenaclick properly when the time comes (or vice versa).