Medication travel checklist: prescriptions, customs rules, and emergencies abroad

What to bring

Prescription medication

• 1.5× your trip length. A 14-day trip = 21 days’ supply minimum. Allows for travel delays, lost bag, or trip extension.
• In the original labeled container, not pillboxes, not zip-locks. Customs and emergency-room staff need to see the prescription label.
• Split between two bags if your medication is critical (insulin, blood-pressure, anticonvulsant). Keep the larger supply in carry-on, a smaller backup in your day bag.
• Refrigerated medications — bring a small insulated travel pouch and gel packs. Most TSA and global security allow ice packs in carry-on for medical use; declare them at security.
• Printed prescription with both generic and brand names, dose, and your prescriber’s contact info. Some pharmacies abroad will fill against a foreign prescription; many will require a local doctor to rewrite it.
• Doctor’s letter describing your condition and prescribed regimen. Particularly important for syringes (insulin pumps, EpiPens), controlled substances, and unusual medications.

Routine over-the-counter

• Pain reliever (acetaminophen / paracetamol + ibuprofen)
• Antihistamine (oral + cream)
• Anti-diarrheal (loperamide) + oral rehydration salts
• Antacid
• Motion-sickness tabs if you’ll be on boats, buses, or winding mountain roads
• Sleep aid for long-haul jet lag (melatonin is OTC in some countries, prescription in others)
• Antiseptic wipes, plasters, blister kit, tweezers
• Sunblock + insect repellent (DEET or picaridin)
• Hand sanitizer + small pack of tissues

If you take any of these, double-check destination rules

The following classes of routine medication are restricted, banned, or require an import permit in popular destinations:

• ADHD stimulants (Adderall, Ritalin, Concerta, Vyvanse) — banned in Japan, restricted in much of the EU and South Korea, require permit in UAE and Singapore.
• Opioid painkillers (codeine, oxycodone, tramadol, hydrocodone) — controlled in most countries; codeine over-the-counter is restricted in many countries that allowed it 10 years ago. UAE in particular has imprisoned travelers for trace amounts.
• Sleeping pills (benzodiazepines like Xanax, Valium, Klonopin) — controlled in most countries; some require import permits.
• Cannabis-derived products (CBD, THC, medical marijuana) — legal status varies wildly even between cities. Singapore, UAE, Japan, much of Southeast Asia treat any THC trace as criminal.
• Some asthma inhalers, cold medications containing pseudoephedrine — restricted in Japan, Mexico, and several other countries.

For US travelers, the destination country’s embassy website typically lists controlled substances. The US State Department travel.state.gov destination pages often summarize medication-related arrests and detentions.

How to pack and carry

• Carry-on only for prescription meds. Checked bags get lost or delayed; cargo holds can hit temperatures that destroy temperature-sensitive medications.
• Keep liquids and inhalers accessible for security screening. Liquid-medication exemptions usually apply if you declare them and have a prescription.
• Insulin and syringes: doctor’s letter required, declare at security, keep in original packaging with prescription label.
• EpiPens / auto-injectors: carry two; keep them in their original case; declare at security.
• Cold-chain meds: insulated travel pouch + gel packs (frozen or refrigerated to TSA spec). At your destination, the hotel can usually keep a small fridge supply.
• Pill alarms: set on phone for the destination’s local time, not your home time. Time zone shifts are the most common cause of missed doses.

At customs and border

• Declare anything that’s a controlled substance in your destination country. Failure to declare is a much worse offense than carrying it openly with documentation.
• Have the doctor’s letter and prescription accessible at the carry-on level, not buried at the bottom of a bag.
• If you’re carrying syringes, the most common border concern is signaling you’re a non-medical user. The original prescription label and a doctor’s letter resolve this immediately.
• Don’t carry medications for someone else in your bag. This is a separate offense in many jurisdictions, regardless of whether the medication itself is controlled.
• Don’t bring loose pills in unlabeled containers. This is the #1 cause of medication-related detentions for tourists.

If you run out or lose your medication

1. Call your travel insurance 24-hour line first. Many can identify a vetted local pharmacy or arrange an emergency consultation with a local doctor who can write a replacement prescription.
2. Contact your home pharmacy or doctor. They can transfer prescriptions internationally in some cases, or fax/email a copy to a local pharmacy.
3. Major hospital pharmacies are the most reliable source of authentic medication. Avoid street pharmacies in markets where counterfeiting is common (much of Africa, parts of South and Southeast Asia, some Latin American countries).
4. For controlled substances, expect to need a local doctor’s visit. Telemedicine occasionally works; in-person is more common.
5. For non-controlled meds, many pharmacies abroad will dispense based on a printed prescription with both generic and brand names. Generic names are crucial; brand names differ across markets (paracetamol is Tylenol in the US, Panadol elsewhere; ibuprofen is Advil/Motrin in the US, Nurofen elsewhere).
6. Check the packaging carefully. Counterfeit medication is a real risk in some markets. Trust hospital pharmacies and major chains over informal shops.

Special cases

Insulin and diabetes management

• Bring 1.5× supply plus glucose tablets, test strips, and spare lancets.
• Refrigeration above 4 C / below 30 C — use a Frio pouch or insulated case during transit.
• Time-zone insulin adjustment — discuss with your endocrinologist before any trip crossing 4+ time zones.
• Glucose monitors and continuous glucose monitors — bring chargers, sensors, and spare batteries.

Asthma and respiratory

• Two inhalers, one in carry-on, one in checked. Air quality varies widely; what’s mild at home may trigger an attack abroad.
• Check air-quality forecasts for your destination — Travel Risk Calculator surfaces this on each city page.
• For severe asthma, carry a written action plan from your pulmonologist describing escalation steps.

Anaphylaxis / severe allergies

• Two EpiPens or equivalent auto-injectors in carry-on.
• Allergy translation card in the local language listing your allergens and what they mean (free generators online produce these).
• Medical-alert bracelet or necklace in a globally-recognized format.
• Carry your epinephrine prescription label and a doctor’s letter when crossing borders.

Mental-health medication

• SSRIs, SNRIs, mood stabilizers, antipsychotics are typically allowed but require a prescription label. Don’t stop them abruptly because you forgot to pack — withdrawal can be serious and badly disrupt the trip.
• ADHD stimulants require careful research per destination — banned in Japan, restricted in many Asian and Middle Eastern countries.
• Benzodiazepines often need import permits or doctor’s letters; some countries require an embassy-issued certificate.

Related guides

• Medical access abroad
• Travel safety checklist
• What to do if stranded abroad
• Family travel safety guide
• Emergency numbers by country
• Run a personalized assessment