Travel Medication Letter Online

Request a travel medication letter online. Send your destination, travel dates and the medications you are carrying so a provider can review the request. Check the destination’s medication rules before travelling; a clinician’s letter does not itself authorize you to import a restricted medicine. The steps below explain what the letter can document and when it is useful.

Care starts by chat with a licensed provider. Message us and we will confirm coverage in your state.

1 Big Thing

A travel medication letter is a signed note from a clinician that says who you are, what you take, why you take it, and how much you are carrying. For a domestic flight inside the US you almost certainly do not need one. TSA does not require passengers to pack medicine in prescription bottles, and it does not ask for a doctor's letter [1][2]. Confirmed as of 2026-09-03. The letter earns its keep at a border, and most of all when the medication is a controlled one.

Why It Matters

The US State Department puts it bluntly: entering another country with certain medicines, even ones that are legal in the US, can lead to arrest or detention abroad [4]. Confirmed as of 2026-09-03. This is not a paperwork inconvenience. A medication your pharmacy fills without comment can be a prohibited import a nine hour flight away, and the person who finds that out is you, at the customs desk, without the medicine you flew with.

Between the Lines

Two rules get mixed up constantly. Airport security is about what can safely go on a plane. Customs is about what may legally enter a country. TSA clears you to fly. It has no say over whether Japan or the United Arab Emirates will let your prescription through the door. And we cannot answer that either. The authoritative check for any given country is that country's own embassy or consulate, which is exactly what both the State Department and the International Narcotics Control Board tell travellers to do [4][6].

Go Deeper

What TSA actually asks for

Short list, and shorter than most people expect. Confirmed as of 2026-09-03:

• No prescription bottle is required. TSA does not require passengers to pack medicine in prescription bottles. It does note that certain state laws govern the labeling of prescription medicine and that passengers have to comply with those [2].
• Labels are recommended, not mandatory. TSA's own wording is that it is recommended medication be clearly labeled to facilitate the screening process [1].
• Liquids over 3.4 ounces are allowed. Medically necessary liquids, medications and creams may exceed 3.4 ounces or 100 millilitres in a carry-on. Take them out of the bag so they can be screened separately [1].
• Say something before screening starts. Tell the officer you have medically necessary liquids or medications and place them in a separate bin, along with the freezer packs, pumps, IV bags or syringes that go with them [3].
• Carry-on beats checked. Medication may go in either, and TSA recommends the carry-on so you can reach it in flight [2].

What the destination country asks for

This is where a letter starts mattering. The State Department's advice is to ask your doctor for a letter explaining your medical condition that lists all your prescription medicines by their generic names, and to keep that letter with the medicines in their original packaging [4]. The CDC's 2026 Yellow Book says the same thing in clinical terms: a letter naming each medication including its generic name, the dosing specifics, and the indication [5].

Generic names are not a formality. A brand name printed on a US box may mean nothing to an inspector in another country, or may be the brand name of a different drug there.

Controlled medicines are their own category

If what you take is a controlled substance, the rules stop being advice and start being law. The international drug control system allows travellers to carry small quantities of preparations containing narcotic drugs and psychotropic substances for personal medical use only, and countries can require a medical certificate issued or authenticated by the authorities of the country you are leaving, on the basis of a prescription [6]. Under the international guidelines that certificate is valid for a maximum of 30 days, and many countries do not permit more than a 30 to 90 day supply [6]. Confirmed as of 2026-09-03.

Note what that means practically. A letter from a clinician is not automatically the same document as a government authenticated certificate. Some countries accept a prescriber's letter. Others want their own import permit obtained in advance. The INCB keeps a country by country page of the regulations governments have submitted to it, and warns that it may not hold information for every country [7].

Do I Need a Letter for a Domestic Flight?

Usually no. Bring the medicine in its labeled container, keep it in your carry-on, and declare liquids at the checkpoint [1][2]. A letter is still worth having on a domestic trip in a few narrow cases: you are carrying injectables plus sharps, you use a pump or infusion supplies, you are travelling with a large quantity because the trip is long, or your medication is a controlled substance and you would rather have documentation than an argument. That is convenience, not a requirement.

What Should a Travel Medication Letter Contain?

Pulling the State Department and CDC guidance together, a letter that is actually useful at a border carries [4][5]:

• Your full legal name, exactly as it appears on your passport, and your date of birth.
• Each medication by generic name, with the brand name in brackets if it helps.
• Strength, form and dose schedule, so the quantity you are carrying makes arithmetic sense for the length of your trip.
• The indication, meaning the condition being treated, in plain clinical terms.
• Quantity carried and trip dates, which is the line that answers the real question an inspector has.
• Any device or supply that travels with it, such as syringes, needles, a pump, or cold packs.
• The prescriber's name, credentials, licence and contact details, on letterhead, signed and dated.

One more thing worth doing yourself: a prescription from a licensed doctor is what most countries want to see, and translating it into the local language is commonly advised [6].

Which Medications Cause the Most Trouble?

The CDC's Yellow Book names the recurring categories [5]. Confirmed as of 2026-09-03:

• Opioid pain medicines such as hydrocodone and oxycodone.
• Benzodiazepines such as alprazolam and diazepam.
• Sleep medicines. Zolpidem requires permission in some countries and is prohibited in others.
• ADHD stimulants. Amphetamine and dextroamphetamine products, and lisdexamfetamine, are illegal at some destinations outright.
• Pseudoephedrine, which is an ordinary cold remedy here and a restricted import elsewhere.
• CBD products, restricted on composition grounds in many places.

Japan is the example people run into most. Its embassy guidance to US travellers is that stimulant medicines used for ADHD and products containing pseudoephedrine are prohibited, and that bringing in more than a set personal quantity of other prescription medicines requires an import certificate applied for before you leave [8]. Confirmed as of 2026-09-03. Check it directly with them rather than taking our word for it.

Can a Letter Make a Banned Medication Legal?

No. If a country prohibits a drug, a letter does not create an exception, and neither does a valid US prescription. What the letter does is answer the questions a border officer is entitled to ask about a medicine that is permitted. That distinction is the single most useful thing to understand before booking. Check the rule first, then get the document that supports it.

The CDC is direct that no single resource covers every destination, and recommends checking several: the INCB country page, the US embassy website for your destination, and the State Department's country pages [5][7]. It also flags the step almost everyone skips, which is checking every country you pass through customs in, layovers included [5].

Closing

Do this in order. Confirm what your destination and any transit country permit, using their embassy. Keep the medicine in its labeled container and in your carry-on. Then get a letter that names each drug generically with its dose, indication and quantity, and carry it with your prescriptions.

If the letter is the piece you are missing, we write them. Well Revolution is chat based with no appointment to book, and letters are one of the things a provider can approve quickly, so a travel medication letter is generally issued within about fifteen minutes of a provider approving the request, with unlimited follow up if a border agent or airline asks for something the letter does not cover. Message us and we will confirm coverage in your state. For anyone under 18, we treat them only with a parent or guardian's consent, so the parent or guardian starts the conversation.

Related reading: what a doctor's note can and cannot say, letters of medical necessity for FSA and HSA, and getting care for your child online.

What it costs with Well Revolution

$50 for a travel letter. If approved, you will receive a travel medication letter and 30 days of support. We are there for those 30 days for follow-up, interpretation, referrals, and treatment if needed. Perfect for a single episode of care.

Or $90 for the Unlimited Membership. If approved, you will receive 3 months of care with 7 days a week support, plus unlimited prescriptions, lab tests, imaging orders, letters and referrals with same day care, cancel anytime, no fees. Perfect for established patients looking for full care.

Getting started with Well Revolution

Care is chat-based with a licensed provider, same day, no appointment needed. Message us with your destination, travel dates, and the medications you are carrying, tell us where you are, and we will confirm coverage in your state before the letter is written.

References

• [1] Transportation Security Administration. I am traveling with medication, are there any requirements I should be aware of? tsa.gov
• [2] Transportation Security Administration. Can you pack your meds in a pill case? And more questions answered. tsa.gov
• [3] Transportation Security Administration. Disabilities and Medical Conditions, TSA Cares. tsa.gov
• [4] US Department of State, Bureau of Consular Affairs. Medicine and Health. travel.state.gov
• [5] Centers for Disease Control and Prevention. CDC Yellow Book 2026, Traveling with Prohibited or Restricted Medications. cdc.gov
• [6] International Narcotics Control Board. General Information for Travellers. incb.org
• [7] International Narcotics Control Board. Country Regulations for Travellers. incb.org
• [8] Embassy of Japan in the United States of America. Bringing Medications into Japan. us.emb-japan.go.jp

Reviewed by PA Michael Rubio, US Medical Director