Originally Posted by
Need
I have a box of 90 (they comes in 90) in carry-on and box of 90 in the checked luggage. No mention of them thru any security 3 times I traveled so far. I have prescription and doctor letter ready to show them, but no one ever asked.
I also thought they would ask about the insulin. They are liquid right? Nope. Nothing at all.

They're no doubt used to seeing insulin vials so there's no reason to say anything. Likewise, insulin vial, you expect needles. Again, no reason to say anything.