PrEP & HIV Medication When Travelling: Carrying, Customs and Availability

Whether it's PrEP for prevention or HIV therapy: if you depend on medication, you don't want any nasty surprises while you're away. Travelling with meds is entirely manageable, as long as you think a few things through before you go. This guide walks through what actually matters when carrying your pills across borders – customs paperwork, storage, refrigeration and topping up supply on the ground – so your treatment stays uninterrupted from the airport to the hotel and back.

Before the trip: plan in good time

Start early. Sort out the details of your medication with your doctor, and if relevant your pharmacy, a few weeks before departure. That leaves enough time to get prescriptions, have a certificate issued and clear up any open questions.

Think ahead about how long you'll be away, whether there are onward trips, and what buffers make sense. If you want to be on the safe side, take more than the exact amount you need – more on that shortly. People on PrEP also have a choice to make here: daily dosing keeps things simple and predictable, while the on-demand "2-1-1" schedule (two pills 2–24 hours before sex, then one pill 24 and 48 hours later) only works with the tenofovir-based regimen, not with Descovy. If your trip changes your usual pattern, talk it through with your doctor first rather than improvising at the destination. Our overview of sexual health when travelling covers testing and vaccines alongside this.

Plan for enough supply and a reserve

Always pack a supply that goes beyond your scheduled travel dates. Flights get delayed, return trips slip, and sometimes you extend a stay on a whim. A reserve keeps you from suddenly being left without your medication.

Don't keep everything in one place. Split your supply – for example between your hand luggage and a second bag. If one piece of luggage goes missing, you'll still have part of your medication with you. One rule holds across almost every airline and security agency: medication goes in your hand luggage, never solely in checked baggage, where it can be lost or exposed to extreme temperatures in the hold. Liquid medications and refrigeration aids are usually exempt from the standard carry-on liquid limits, though you may be asked to declare them at the checkpoint.

Prescription and doctor's certificate

A doctor's certificate can be helpful, and at some destinations necessary. It confirms that the medication is for your personal, medical use rather than for resale or anyone else.

• Certificate in English: An English-language confirmation is the most widely understood internationally. It should name the medication (ideally with the active ingredient), the dosage and the medical reason. Print it; don't rely only on a copy on your phone, since the battery always dies at the worst moment.
• Original packaging: Keep the medication in its original packaging with the leaflet. That makes identification and inspection considerably easier, and it matches the label to the certificate at a glance.
• Copy of the prescription: A copy or photo of your prescription is useful if you need a refill on the ground, and it speeds up any insurance claim if meds are lost.

Ask your doctor what form of certificate makes sense for your destination. Some medical bodies offer standardised templates, and a number of countries provide their own official forms for travelling with prescription drugs.

Customs and entry regulations

Import rules for medication differ from country to country and do change. Some countries cap how much you may carry for personal use – often defined as a supply of around 30 days or less – while others ask for extra paperwork or treat certain active ingredients as controlled substances. Check the specific rules of your destination before you book, not the night before you fly.

• Confirm whether special import restrictions apply to your particular medication.
• Note any maximum quantity allowed for personal use, and keep your supply within it where you can.
• Keep your doctor's certificate within reach in case you're asked on arrival.
• Stopovers and transit countries may enforce their own rules, so check those routes too.

The official embassy or consulate of your destination, plus its health or customs authority website, are the most reliable sources here. If you're unsure, ask one time too many. Discretion is a given: your health data is nobody else's business, and a matter-of-fact certificate is usually entirely sufficient. If your route runs through a country where being openly queer carries risk, our notes on border control as a queer person are worth a read before you pack.

Refrigeration and proper storage

Most PrEP and HIV tablets are uncomplicated at room temperature, but they should be protected from intense heat and direct sun. Don't leave a blister pack in a hot car or on a sunny windowsill for hours. Check the leaflet for the upper temperature limit – many oral medications tolerate short excursions above it, but heat over long stretches is the thing to avoid.

If your medication genuinely needs to be kept cool, plan for it in advance. Insulated medication pouches and small cool packs do the job for a flight or a day out. Clarify at the time of booking whether your accommodation has a fridge or minibar you can use. When in doubt, the same principle applies throughout: read the leaflet on storage and ask ahead if anything is unclear.

Supply and access at your destination

Knowing the supply situation before you arrive takes a lot of pressure off. Research whether your medication is generally available there and where you'd find a pharmacy or medical help in an emergency. Access to PrEP in particular varies enormously between countries – free in some health systems, prescription-only and pricey in others, hard to come by in a few.

• Active ingredient instead of brand name: Note down the active ingredient of your medication. Brand names differ from one country to the next; the active ingredient stays the same and helps when finding a replacement.
• Local points of contact: Many destinations have specialised advice centres or community organisations that can help with HIV and PrEP. Research in advance whether such contacts exist, and save their details offline.
• Top up your travel first-aid kit: Put together a short list of addresses and contacts you have to hand without needing a signal.

For a country-by-country picture of where and how you can get it locally, see our guide on PrEP access worldwide.

Avoiding gaps in your dosing

For HIV therapy, regular uninterrupted intake keeps the virus suppressed; for daily PrEP, consistency keeps protection at its peak. An unplanned gap can compromise either one. So much of the preparation above comes down to a single goal: not letting gaps arise in the first place.

• Set yourself reminders, especially across time differences. Discuss with your doctor how to shift your dosing times over larger time-zone changes so you don't double up or skip.
• Keep an eye on your supply and arrange a refill in good time if the trip runs longer than planned.
• Have a plan ready for a lost or stolen kit – that means knowing the active ingredient, carrying the certificate, and having the prescription copy and a local pharmacy contact saved.

If the worst does happen abroad, our emergency guide for travellers covers embassies, local help and what to do first. With this kind of preparation, your treatment stays reliable on the road, and you can put your attention where it belongs: the trip itself.