Interesting info re: reusing the epi pen.

Zantac is just another type of antihistamine drug. It's works selectively on different receptors. If you had to carry one, benadryl is a good standby, but concievably claritin,zyrtec or allegra could work.

Re: glasses - I'm currently overseas. The military saw fit to outfit me with 3 different pairs of glasses, and 2 inserts for goggles (which are crap and kind of 'off'). Because of that, I bought my own safety/goggles, one tinted and one untinted. Yup, I'm rolling with 7 different lenses. I have one sunglass and one regular daily w/ me, the rest in my barrack.