Travel, Moving and Keeping Your Supply
Hormones are a medicine you take for years, and in that time something will get in the way of the next prescription. A holiday, a move for work, a pharmacy that runs out, a clinic that closes, a change in the law. None of it is a reason to panic, but each one is easier with a little planning.
This page covers the practical side of keeping your supply steady: travelling with hormones, crossing borders, moving to a new prescriber in a new state or country, and what to do when a medicine is short or access disappears. The thread through all of it is simple. Gaps happen when people find out about a problem on the day they run out, so the aim is to find out a few weeks earlier.
On this page
Packing for a trip
Pack hormones and supplies in your hand luggage, not the hold. Bags get delayed and lost, and the hold gets cold enough to matter for some medicines.
- Take more than you need. Enough for the trip plus a week or two spare, in case a flight is cancelled or you're delayed.
- Keep the original packaging, with the pharmacy label showing your name and the medicine.
- Carry a copy of the prescription or a short letter from your prescriber listing what you take, in what form, and that it's for ongoing treatment. For needles, the letter matters most.
- Gel, liquids and vials are usually allowed through airport security in quantities above the normal liquids limit when they're medicines, but declare them at the checkpoint and expect them to be looked at.
- Patches can lift in heat, humidity and swimming. Pack spares and some medical tape.
Used needles still need a sharps container on the road. Small travel sharps boxes exist and are worth the space.
A month before you travel
Check how many doses you have left against the dates you'll be away, and order a refill early if the trip crosses your usual pick-up date. Pharmacies and insurers often allow an early refill for travel if you ask before you go, rarely afterwards.
Time zones and dose times
For a daily tablet, patch change or gel, a few hours either way while travelling rarely matters. Most people either keep to home time for a short trip or shift by an hour or two a day until they're on local time.
For injections, the day matters more than the hour. If an injection falls on a travel day, many people do it the day before they leave rather than in an airport toilet. If you're going to be away for a long stretch, ask your prescriber how much flexibility your product allows before you change the schedule.
Crossing borders
Rules on bringing medicines into a country differ, and hormones aren't treated the same everywhere.
Testosterone is a controlled substance in the US and in a number of other countries, which can limit how much you may carry and what paperwork you need. Estradiol and anti-androgens are rarely controlled, but some countries still ask for a prescription or a letter for any medicine above a small quantity. Many countries allow a personal supply for a limited period, often up to about three months, with documentation. The only reliable source is the destination country's embassy or health ministry, and it's worth checking each time rather than relying on what was true last year.
A mismatch between your passport and your prescription, in name or gender marker, can draw questions. A letter from your prescriber that names you as you appear on your passport and explains the medicine is the simplest way through. You don't owe a border officer your medical history beyond that.
Moving to a new prescriber
Moving state, province or country usually means a new prescriber, and the first thing they'll want is your history.
Before you leave, ask your current prescriber for a summary: what you take, the form and dose, when you started, your recent blood results with units and reference ranges, and any problems along the way. Then book the new prescriber before your supply runs out, not after. In many systems, waiting for a new doctor takes longer than the move.
Expect some things to change. Not every medicine or form is available everywhere: spironolactone is the default anti-androgen in the US and less common in the UK, testosterone cypionate is the usual US injection while enanthate or long-acting undecanoate are more common elsewhere, and some patches and gels are sold only in some countries. Labs use different units, so your estradiol may look like a different number in pmol/L than it did in pg/mL. A new prescriber may want their own baseline bloods before they renew anything, and may switch you to what's available locally. That's usually routine, not a judgement on your old plan.
In the US, moving between states can also change what's allowed, because state law on prescribing, insurance coverage and telehealth differs. Check the rules where you're going before you go. Long-term health covers keeping your records together over the years.
Before your last appointment with your current prescriber
Ask for your full results and a short treatment summary to take with you, on paper or as a file you control. Clinics are slow to send records to another country, and some never do.
Shortages
Shortages of particular hormone products happen, sometimes for months. Patches, some gels and particular injectable products have all been hard to find in different places at different times.
If your pharmacy can't fill a prescription, ask them first whether another branch or another brand of the same medicine has stock. If nothing does, contact your prescriber rather than stretching what you have. There's nearly always an alternative form that will do the same job for a while, though it may need a blood test once you've switched, because levels behave differently on a different route. Blood tests and monitoring explains why.
Rationing your own supply by halving doses or spacing them out is the move that causes the most trouble, because the dip shows up as mood, hot flushes or returning periods weeks later, when nobody connects it to the shortage.
If you lose access
Clinics close, insurers change policy, laws change. If your route to hormones is threatened, act early.
- Ask your current prescriber for the longest prescription they can safely write, and for your records.
- Ask your GP or family doctor whether they'll prescribe, even short term. Some doctors will write a bridging prescription to cover a gap.
- Look at other routes: another informed-consent service, telehealth where it's allowed, or a private clinic. Getting hormones covers them.
- Check the cost of paying cash for a while if insurance is the problem. For generic tablets and injections it's often lower than people expect; cost and insurance has rough figures.
If you've had your testes or ovaries removed, a gap matters more. Without them, your prescription is your body's only source of sex hormone, and long gaps affect bone health and how you feel within weeks. Make sure any new prescriber knows that from the first conversation.
General information, not medical advice. Check travel rules with the destination country and changes of medicine with your prescriber.
Frequently asked questions
Can I take testosterone or estradiol on a plane?
Generally yes, in your hand luggage, in the original packaging, with a copy of the prescription or a letter. Declare gels, vials and needles at security. See packing for a trip.
How much testosterone can I take abroad?
It depends on the country, because testosterone is a controlled substance in many places. Check with the destination's embassy or health ministry before you go. See crossing borders.
Will a new doctor keep me on the same hormones?
Often, but not always. They may want their own blood tests and may switch you to what's available locally. See moving to a new prescriber.
My pharmacy is out of my patches. What do I do?
Ask about other branches and brands, then contact your prescriber about a temporary alternative. Don't stretch your supply. See shortages.