that's one that will show up on a steroid test. if you gain fast enough, they will have reason to test you. most infantry/tanker units though won't care. again, if you hold a TS i wouldn't mess with steroids - i was one of those in charge of managing clearances, and i can tell you we didn't care if you were on something unless you held a TS - then we'd suspend your TS for whatever we deemed important. every unit is different though, and you have to assess your job description, your commander and NCOIC, and if the risk is worth it. if you're one of the black sheep in the company, expect to be tested. if nobody has any issues with you, they probably won't bother.
my 2 cents. again, you have to make the decision, and decide if the risks are worth it (if there are any), i can just tell you how most units work.