My brother does steroids and offered me a bottle of test prop w what he says r the proper needles for butt injections. He uses the same needles with the same test(fresh needles different bottle but same type of needle) and has no issues. I have taken one shot in my right cheek and one in my left cheek. Both times I experienced a terrible sorness the right cheek has subsided but the left is killing me. It hurts to sit in my school chairs and it sucks! Like I said it subsided on my other cheek but I'm just wondering why this is happening to me and not him? Also I'm fairly certain I am not taking it wrong he knows how to take it and actually assists me with the shot. Also I was wondering if taking it twice a week or every other day was smarter.