Cold chain medicine travels by air in two ways: medicine a passenger carries for their own treatment, and a commercial consignment sent by a company. Turkey's medicines agency TİTCK defines cold chain products as those that must be kept at +2 to +8 °C, under the conditions set by the licence holder, from production to the point of use. That range is the same in both cases; what changes is the paperwork and the acceptance rules.
Airline rules, total journey time and container capacity define what the cold chain is for a flight.
How to carry it as a passenger
- Put the medicine in your cabin bag in its original packaging, with a prescription showing your identity or a health report stating that you need it. Under the SHGM rule, medicines on these terms fall outside the 100 ml limit; security staff may ask to see the document.
- Treat the coolant separately from the medicine. The exemption covers the medicine; a gel pack or cooling pack can still fall under the liquids and gels rule, so ask your airline in advance how departure and transfer airports handle it.
- Count the time door to door. A 2-hour flight plus 1 hour to the airport, 2 hours for security and waiting, and 1 hour until the medicine reaches a refrigerator at the destination means the bag must hold for at least 6 hours.
- Do not let a frozen pack touch the medicine; put a layer between them, because +2 °C is a limit too.
- Do not put the medicine in checked baggage. There is no liquids restriction there, but if the bag is delayed the medicine is separated from you.
If the medicine warmed up during the journey, that does not always mean it is spoiled. Tell your pharmacist the storage condition in the patient leaflet and how long it was out of range, and do not stop treatment on your own.
Commercial consignments. A commercial shipment travels in a qualified container and pack-out. The WHO guide on shipping-container qualification counts transport time from the moment the package is closed and sealed at departure until it is opened in the recipient's temperature-controlled store, and asks for field trials run three times in the hottest and coldest season, with the smallest and largest load. Container, coolant, divider, logger position and route are written down as one arrangement; if one changes, the qualification is repeated.
Even after a smooth flight, the medicine can arrive out of range if apron waits, the baggage belt, customs and the transfer vehicle are left out of the plan. The commercial file therefore states the receiving point and time as clearly as the flight times.
For packaging and records in commercial air cargo, see shipping chilled goods by air cargo; for choosing the coolant, see the ice-pack selection guide.
