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. 2012 Aug 20;5:39–49. doi: 10.2147/JAA.S33688

Figure 5.

Figure 5

Box plots showing the force required (N) to activate each adrenaline auto-injector at base conditions, after free-fall, and after static load preconditioning.

Notes: Median (line inside box), mean (diamonds), and outlying values (circles) demonstrate that the static load significantly increased the force needed to activate EpiPen and Anapen. The force needed to activate one Anapen was above the upper limit for the testing equipment. The free-fall conditions resulted in a broken carpoule of another Anapen.