Benedryl is the counter for allergic reactions since it is an aghonist-antagonist. It actually removes the histamine from the receptor site and replaces it.
Epinephrine, OTOH, is used as a bronchodilator since many allergic reactions are powerful enough to constrict the airway. Epinephrine (aka adrenaline)is produced naturally by the adrenal cortex on the kidneys.
bgill - Are you sure that you are having a reaction to the epi, or another component of the injection? The dilation effect on smooth muscle could also cause your BP to drop at a high rate causing a transitory syncope effect.
All three times I’ve been given it, blam! Yes, yes, I know it’s supposed to be a natural element but I don’t want anything to do with it.