I'm prone to migraines, so I always fly with injectable Imitrex and syringes. I have never, not once, anywhere in the world, been questioned about the syringes or the medication. The syringes are dispensed by the pharmacy in a plastic bag with a prescription label on it, but no one has ever read it. I have a letter from my doctor explaining why I have them, but no one has ever asked to see it.

Now, I'm not suggesting that your friend travel without either a prescription or MD letter. However, the odds of needing either appear to be very, very low.