I am wondering if anyone has any advice in relation to carrying injectable meds.

I am going to be doing a RTW clearing customs in Laos (should not be a problem), Greece (would appreciate any advice) the USA (in LAX and again, any new advice).

I will have an authority from my consultant physician and the drugs also need to be kept cold (but I am intending to keep them in their commercial packaging until used).

A second question is does anyone know where I may safely dispose of used needles in Athens and LA??

TIA