Pack medications in a carry on in case your luggage is lost or delayed. Keep medicines in their original, labeled containers. Ensure that they are clearly labeled with your full name, health care provider's name, generic and brand name, and exact dosage.

When packing prescriptions for international travel in 2026, the most important rule is to keep all medications in their original, labeled pharmacy containers. These labels provide proof that the medication was legally prescribed to you. You should always carry your medication in your carry-on luggage rather than checked bags to prevent loss in case of a luggage delay and to protect the pills from extreme temperature fluctuations in the cargo hold. It is highly recommended to carry a signed letter from your doctor or a copy of your physical prescription, especially for controlled substances like painkillers or ADHD medication, as some countries have very strict narcotics laws. Always check the "prohibited items" list for your destination; for example, some common over-the-counter cold medicines in the US are illegal in Japan. If your medication requires refrigeration, invest in a specialized medical travel cooler. Finally, bring an extra week's supply in case of travel delays, and ensure you have your doctor's contact information and the generic names of the drugs, as brand names often differ between countries.