I have a 10cc bottle of Pfizer Depot 200 that expired a few years back. It is legit human grade test my older brother had a script for and never took it. While waiting for my "prior authorization" for this year on my TRT, I got behind on my doses by two weeks and will have to wait another week. My question, does the potency go down? It was expired in 7/14 which means it was made sometime in 2013. It was properly stored in a dark area/medicine cabinet since he got it from his doctor. Thanks n advance.