Thailand is one of the easier places in the world to start and stay on PrEP, the medicine that protects people who do not have HIV from getting it. The country was an early adopter, has well run clinics that see international visitors every day, and offers PrEP at a fraction of what it costs in many Western countries. This guide explains what PrEP is, how well it works, and the question most people actually have: where an expat or traveller can get it here.

What PrEP is and how well it works

PrEP stands for pre-exposure prophylaxis. It is a medicine taken by someone who does not have HIV to stop them acquiring it. The most common form is a daily tablet that combines two antiretroviral medicines, tenofovir and emtricitabine. Taken as advised, it builds a level of protection in the body that the virus cannot easily get past.

The evidence behind it is strong. The World Health Organization recommends PrEP for people at substantial risk of HIV as part of a wider prevention approach, and the US Centers for Disease Control and Prevention reports that, taken consistently, it lowers the risk of getting HIV from sex by about 99 per cent. PrEP does not protect against other sexually transmitted infections, so it is used alongside condoms and regular testing, not instead of them.

Who PrEP is for

PrEP is for people who do not have HIV but may be exposed to it. Whether it is right for you is a personal decision, best made with a clinician who can talk through your situation, confirm you are HIV negative first, and set up the testing that goes with it. In the clinics that provide PrEP, this is a routine, judgement-free conversation.

This guide is general information. It cannot tell you whether PrEP is right for you, or how to take it. That part is for a doctor or a PrEP clinic. What it can do is show you how access works in Thailand.

Getting PrEP in Thailand

PrEP is widely available across Thailand, and the country is recognised as a regional leader in providing it. You can find it at hospitals, private clinics, and community clinics known as key population-led health services, which are staffed by people from the communities they serve and are used to international clients. In Bangkok and the other cities you usually have several options within easy reach.

Thailand also offers PrEP free under its national health scheme, run by the National Health Security Office. As the Love Foundation explains, this is part of the country’s universal coverage, but eligibility is tied to the national scheme, so the free route mainly benefits Thai nationals. For most expats and travellers, the practical option is a community or private clinic. Some community programmes offer PrEP free or at low cost whatever your nationality, while private clinics charge a modest fee, so what you pay depends on where you go. The Love Foundation keeps a plain guide to getting PrEP in Thailand, including where to start.

What PrEP costs in Thailand

Cost is the question that stops many people, and the good news is that Thailand keeps PrEP affordable. The medicine is widely available as a generic, the same tenofovir and emtricitabine as the branded version without the brand price, which is a large part of why PrEP here costs far less than in many Western countries.

What you actually pay depends on the route. Under the national scheme it is free for those who qualify. Some community clinics provide it free or at low cost to others, including foreigners, through supported programmes. At a private clinic you generally pay a modest monthly cost for the medicine plus the periodic tests that go with it. It is worth asking a clinic directly what their current arrangement is, since programmes change.

What to expect: testing and follow-up

PrEP comes with a simple routine of checks, and a clinic will walk you through it. Before you start, they confirm you are HIV negative, since PrEP is for prevention rather than treatment. After that, regular visits, usually every few months, repeat the HIV test and check that all is well, and many people get screened for other sexually transmitted infections at the same time.

None of this is a burden, and the clinics that provide PrEP are set up to make it quick and routine. The exact schedule is something your clinic sets with you.

Is PrEP safe?

PrEP is well established and, for most people, well tolerated. Some notice mild effects in the first few weeks, such as a little nausea or a headache, which usually settle on their own. Serious problems are uncommon, which is part of why PrEP is recommended so widely.

The follow-up visits are there partly to keep an eye on this. Alongside repeating the HIV test, a clinic checks that the medicine is suiting you and that your general health stays fine. If anything does not agree with you, the clinic can adjust the approach. Both the WHO and the CDC treat PrEP as a safe, recommended option for people at risk of HIV.

Daily or on-demand

There is more than one way to take PrEP. The standard approach is a daily tablet, which keeps protection topped up and suits most people. There is also an event-based option for some, taken around specific occasions rather than every day. Which one fits, and exactly how to take it, is a decision for the clinic and you, since it depends on your circumstances and the medicine.

The point worth knowing is that both are established, recognised options, and a PrEP clinic can explain which makes sense for you.

PrEP and PEP: what is the difference?

It helps to know the companion to PrEP, called PEP, or post-exposure prophylaxis. PrEP is taken before any exposure, as ongoing prevention. PEP is the emergency version: a short course started as soon as possible after a possible exposure to HIV, and the sooner the better, ideally within hours and no later than about three days.

If you think you may have been exposed and are not on PrEP, PEP is the route, and it means getting to a hospital or clinic quickly rather than waiting. Many of the same clinics in Thailand that provide PrEP can also start PEP. Once a course of PEP is finished, a clinic can talk with you about whether ongoing PrEP makes sense.

A confidential, routine step

For some people the barrier to PrEP is not access but worry about what others might think. In Thailand’s PrEP clinics, and especially the community-led services, this is everyday work. Staff see people from every background, the visit is confidential, and there is no judgement attached to looking after your own health.

It helps to think of PrEP as ordinary preventive care, in the same way as a vaccine or a dental check. Taking a sensible step to protect yourself is exactly that.

Keeping PrEP going while you live or travel here

If you are staying in Thailand for a while, the main thing is consistency, since PrEP only works when taken as advised. Settle with a clinic early, keep your follow-up appointments, and do not let your supply run low before the next visit. If you move around the country, clinics in the main cities can usually continue your PrEP using your records.

For your wider medicine needs while you are here, our guide to buying medicine in Thailand covers pharmacies, bringing your own supply, and delivery, and you can see how ordering works on ZoneMD. PrEP itself, though, is best started and monitored through a clinic that can do the testing alongside it.

Where to go next

Thailand makes PrEP genuinely accessible, and starting it is a routine, confidential step at any of the clinics that provide it. If you think it might be for you, the next move is simple: contact a PrEP clinic and book an HIV test, which is where it all begins. You can also browse HIV prevention and treatment medicines on ZoneMD for background.

This guide is general information, not medical advice, and it cannot replace a conversation with a clinician. For the medical detail, see the WHO and CDC guidance below, or speak to a PrEP clinic in Thailand.