@jenny4am A prescription or a doctors letter stating the exact medication and size of liquid bottled medication for the same name on the boarding pass is absolutely fine
@JohDomne1 It goes through an xray at security and the passenger is supposed to pick it up at the end of the xray, security don't take it to the aircraft.
@houghtonc79 As long as you have the prescription label on the bottle or a letter stating the size and the name of the passenger travelling then it won't be a problem.
@gemma_loftus Surely it was screened separately from the bag with any electrical items and he forgot to pick it up after xray? Hard drives do not get taken off people.