I do the same as AR: I do take copies of the scripts of the injectable schedule 2 medications that I need. I was asked about the injectable in San Francisco airport and I was glad I had the script. I also have a medic alert dog tag with all my medications on it. That also helped. I think I had a TSA person who was having a bad day. The supervisor just waved me on when he came over.
Put your meds in the seven day containers: Retain the copies of the pharmacy receipts and have a great trip.
DEA is looking for major smuggling not vacation travelers