"All medications in any form or type (for instance, pills, injectables, or homeopathic) and associated supplies (syringes, Sharps disposal container, pre-loaded syringes, jet injectors, pens, infusers, etc.) are allowed through the security checkpoint once they have been screened. Atropens, an auto-injection system that can help treat many emergency conditions (low heart rate, breathing problems, and excess saliva related to insecticide, nerve gas or mushroom poisoning) are also allowed."
If you worry about the medication going through the x-ray machine you can request a hand inspection.
If there is any chance that you may need them on your trip, you should never check them. Never put anything in a checked bag that you can't afford to lose, or be without for a couple days at a minimum.
You only have to pack a prescription in a suitcase once and then have the suitcase lost.
Lesson, learned, carry all presription medication in a carry on.
Tip-- traveling domestically, I like having my prescriptions all Walgreens. Having forgotten to pack one , for a 16 day trip , one phone call to the local 24 hour Walgreens at my destination, got me enough medication to get me through the entire trip.