Wow, I would check with your nursing board and Federal, State, and Local laws on this one. Everything you "dispense" will be "from" you if there's not an order, and I'll be the first to tell you I Know Nothing About This, but it sends up red flags for your license.
Please understand that I am not being a "drag," It just sounds really risky, I know everything our Occupational Health Nurse gives is on a Physician Standing Order, or new MD/DO/NP/PA order. They no longer just give out OTC meds. This has a ton of legal implications, and like I said, I just have no idea.
The reason I posted is because I just want you to be aware of the possibility of laws forbidding a nurse to "dispense medications" without an order no matter what they are.
I wish you the best, and congrats on your new position!!!!