Traveling on Immunosuppression

Planning ahead

Traveling on immunosuppressive therapy takes a bit more planning than it used to, but it absolutely should not stop you from going. Patients on biologics, JAK inhibitors, methotrexate, and other immunosuppressive medications travel safely all the time — domestically and internationally. The key is preparation.

Start planning 4 to 6 weeks before your trip so there’s time to address vaccines, medication supplies, and any documentation you might need.

Packing your medications

How you pack your medications matters more than you might think.

• Bring enough medication for your entire trip plus extra — at least a few extra days’ worth in case of travel delays, lost luggage, or itinerary changes
• Keep all medications in your carry-on bag — never put them in checked luggage; checked bags can be lost, delayed, or exposed to extreme temperatures in the cargo hold
• Keep medications in their original packaging — prescription labels help with identification at security checkpoints and border crossings, and they’re essential if you need a refill while away
• Carry a current medication list — including drug names, doses, frequency, and your prescribing doctor’s contact information

Injectable medications and TSA

If you take a self-injectable medication — adalimumab, etanercept, secukinumab, upadacitinib autoinjector, or others — you’re allowed to bring it through airport security.

• Syringes, autoinjectors, and pen injectors are permitted in carry-on luggage with a prescription label
• Sharps containers for needle disposal are allowed through security
• You do not need a separate letter from TSA — your prescription label is sufficient for domestic travel
• Inform the TSA agent during screening that you’re carrying injectable medication — this usually speeds things up

Pro tip: TSA agents see injectable medications regularly. It’s rarely an issue. If you’re nervous about it, keep your medications together in a clear bag with the prescription labels visible.

Refrigerated medications

Most injectable biologics require refrigeration at 36 to 46°F (2 to 8°C), but their tolerance for room temperature varies widely — from just a few hours to a full month. Knowing your medication’s limit is essential for planning.

Room temperature stability reference

These times represent manufacturer-tested limits. Once a medication has been at room temperature for its allowed period, do not return it to the refrigerator (with the exception of Cosentyx, which allows one return). When in doubt, call our office or your pharmacy.

Travel tips for cold-chain medications

• Use an insulated travel case with gel ice packs — several brands make cases designed specifically for biologic medications
• TSA allows gel ice packs in carry-on luggage for medical purposes, whether frozen or partially thawed
• At your destination — request a mini-fridge in your hotel room (most hotels will provide one at no charge for medical needs), or use the room’s existing mini-bar fridge
• Don’t freeze your medication — freezing can destroy the drug; keep it cold but not frozen
• For short trips with Enbrel, Simponi, or Humira, you may not need a cooler at all — check the table above

Medical carry letter

For international travel, we can provide a letter on practice letterhead documenting:

• Your diagnoses
• Your current medications, including injectables
• The medical necessity of carrying syringes, needles, and refrigerated medications
• Your doctor’s contact information

This letter can be helpful at customs and border control, particularly in countries with strict rules about syringes or controlled substances. Request this at least 2 weeks before your trip so we have time to prepare it.

Travel vaccines

Some destinations require or recommend vaccines that may be live vaccines — and live vaccines are generally not safe while you’re on immunosuppression. This is why we need lead time.

• See us 4 to 6 weeks before travel to review destination-specific vaccine recommendations
• Safe travel vaccines include hepatitis A, injectable typhoid, Japanese encephalitis, and rabies — all inactivated
• Unsafe travel vaccines include oral typhoid (Vivotif), yellow fever, and in rare cases others — these are live and require alternatives or medication timing adjustments
• Yellow fever is particularly important because some countries require proof of vaccination for entry — if you can’t receive it, we can provide a medical waiver letter, though acceptance varies by country

For a more detailed breakdown of safe and unsafe vaccines, see our Vaccination Guide for Patients on Immunosuppression.

Destination-specific risks

Your immune system doesn’t work the same way it did before you started treatment. Some travel risks are higher for you than for the average traveler.

• Food and water safety — traveler’s diarrhea can be more severe and harder to clear in immunosuppressed patients; stick to bottled or purified water, avoid ice in drinks, and be cautious with street food and raw produce in high-risk areas
• Malaria prophylaxis — if traveling to a malaria-endemic area, discuss antimalarial options with us; some interact with rheumatology medications
• Altitude — high altitude can worsen fatigue and joint pain; if you have lung involvement from your rheumatic disease, altitude deserves extra consideration
• Extreme heat — some medications increase sun sensitivity; stay hydrated, use sunscreen, and be aware that heat can affect medication stability
• Extreme cold — Raynaud’s phenomenon is common in many rheumatic diseases and can be aggravated by cold climates; pack appropriately

Insurance and medical care abroad

• Verify your insurance coverage — many domestic health insurance plans provide limited or no coverage outside the United States
• Consider travel medical insurance — policies are inexpensive relative to the cost of a medical emergency abroad, and most cover emergency care, hospitalization, and medical evacuation
• Know where the nearest hospital is — especially if you’re traveling to remote areas; a quick search before you leave can save critical time in an emergency
• Carry your insurance cards and emergency contacts — including our office number

Flare planning

Flares don’t check your itinerary. Having a plan in place means a flare doesn’t have to ruin your trip.

• Prednisone burst — if appropriate, we can provide a pre-authorized short course of prednisone to carry with you in case of a significant flare; this gives you a bridge until you can get back to us
• Know how to reach us — our office can communicate with you via Spruce for non-urgent questions, and we’re reachable by phone for urgent issues
• NSAIDs — if you tolerate them, packing ibuprofen or naproxen gives you a first-line option for mild flares or pain
• Don’t stop your medications — skipping doses while traveling increases your risk of a flare; maintain your schedule as closely as possible, adjusting for time zone changes if needed

If you cross multiple time zones, shift your medication timing gradually rather than all at once. For once-daily medications, moving the dose by an hour or two each day until you match local time is usually sufficient. For weekly injectables, pick a day and stick with it — a few hours’ difference won’t matter.

The bottom line

Immunosuppression changes how you prepare for travel, but it doesn’t change whether you can travel. With the right preparation — medications packed safely, vaccines sorted out, a flare plan in your back pocket — you can go where you want to go. Talk to us before your trip, and we’ll make sure you’re ready.

This handout is provided for educational purposes and does not replace individualized medical advice. Always follow the specific instructions given by your rheumatologist.