You take four medications daily. You're booked on a 14-day European trip. What could go wrong? Plenty. Medications that are perfectly legal in the United States are controlled or even banned in other countries. Customs agents can confiscate unlabeled pills. Airlines can lose checked bags containing your only supply. And getting a U.S. prescription filled in a foreign pharmacy ranges from annoying to impossible. Here's how to travel internationally without risking your health or your freedom.

67%
of international travelers 60+ bring 3+ prescription medications
39
countries that ban or restrict common U.S. medications
12%
of travelers who checked medications in luggage experienced delays or loss

Before You Leave: The Essential Prep

Your Pre-Trip Medication Checklist

1
Get a Doctor's Letter
Ask your physician for a signed letter on letterhead listing every medication, the generic name, dosage, your diagnosis, and the statement that these are prescribed for personal use. This is your golden ticket at customs.
2
Check Country-Specific Drug Laws
The International Narcotics Control Board (INCB) website lists controlled substances by country. Common U.S. medications banned or restricted abroad include: Adderall (amphetamine — banned in Japan, many Middle Eastern countries), codeine combinations (prescription required in most of Europe), and pseudoephedrine (restricted in Mexico, Japan).
3
Carry a 90-Day Supply Maximum
Most countries allow a 30-90 day personal supply. Exceeding this can trigger suspicion of trafficking. For longer trips, investigate whether your medication is available locally by generic name.
4
Keep Everything in Original Pharmacy Bottles
Loose pills in a plastic bag look like street drugs to a customs agent. Original bottles with pharmacy labels show your name, the prescribing doctor, and the medication name.
5
Split Your Supply
Carry 7 days in your carry-on and the remainder in checked luggage. If one bag is lost, you're not stranded. Better yet: carry everything in your carry-on.

Medications With Special International Rules

Common U.S. Medications With International Restrictions

MedicationU.S. StatusInternational ConcernCountries With Restrictions
Adderall (amphetamine)Schedule II prescriptionBanned entirely in many countriesJapan, UAE, Saudi Arabia, South Korea, Singapore
Codeine (Tylenol #3, etc.)Schedule III prescriptionOver-the-counter in some places, banned in othersUAE, Japan (strict), India (restricted)
Ambien (zolpidem)Schedule IV prescriptionControlled substance internationallyJapan (requires advance permit), Russia, UAE
Xanax (alprazolam)Schedule IV prescriptionHeavily controlled globallyJapan, UAE, Singapore, South Korea (permit required)
Insulin & syringesNo scheduleSyringes can raise questions at securityCarry letter and original packaging; most countries allow
Medical marijuana/CBDState-legal in U.S.Illegal in most countriesAlmost everywhere outside U.S., Canada, Netherlands

At the Airport and Border

  • Declare all medications proactively at customs — don't wait to be asked. Volunteering information reads as honest; hiding it reads as suspicious.
  • Carry your doctor's letter in the same bag as your medications. Security officers in countries like Japan, UAE, and Singapore may ask to see documentation.
  • If traveling to Japan with ANY controlled substance, you MUST apply for a Yakkan Shoumei (import certificate) BEFORE departure. This takes 2-3 weeks to process.
  • TSA allows medications in containers larger than 3.4 oz in your carry-on. Declare them separately at the security checkpoint. Liquid medications, syringes, and ice packs for insulin are all permitted.
  • If customs confiscates a medication, get a written receipt with the officer's name and badge number. Contact the nearest U.S. embassy for assistance.

Emergency Medication Replacement Abroad

If you lose medications or run out, here's your escalation plan: First, visit a local pharmacy with your original bottle — many European and Asian pharmacists can dispense common medications with your U.S. prescription label as documentation. Second, visit a local doctor (cost: $30-$100 in most countries) for a local prescription. Third, contact the nearest U.S. embassy or consulate — they maintain lists of English-speaking doctors and pharmacies. Fourth, call your U.S. doctor and ask them to call in a prescription to a partner pharmacy if one exists.

Travel Insurance and Medications

Standard travel medical insurance covers emergency prescriptions in most policies. What it typically does NOT cover: refills of maintenance medications you should have brought, medications lost due to your own negligence, or medications for pre-existing conditions unless you purchased a pre-existing condition waiver (available within 14-21 days of your first trip deposit). Read the fine print before you fly.