epipen

Etymology
Genericization of the trademark EpiPen, presumably a, from being a pen-sized device used to inject epinephrine.

Noun

 * 1)  An / . A device designed to ease the symptoms of /, so as to save the life of the victim of the extreme allergic reaction, by injecting a dose of adrenaline/epinephrine through a spring-loaded needle that punches into the tissue it is triggered against.

Translations

 * Japanese: エピペン