The problem is that albuterol can only be purchased by prescription. Basically, insurance companies make it so you can only buy one inhaler at a time within an arbitrary period. If you happen to: (a) run out, or (b) misplace your inhaler, and (c) its too soon to buy another one feel, yet you an attack coming on, Primatine (or its equivalent) is an excellent fall-back choice.
This has happened to me on occasion, and I have been very grateful to be able to get Primatine easily.
Epinepherine does increase heart rate and raise blood pressure, however, so it is best used sparingly by people with hypertension.
We told em so PING
your doctor can shorten that period by the way he writes the prescription because insurance companies cannot tell a doctor how to write a prescription....yet.