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. PrEP is not a medicine you simply pick up, though. It is started after an HIV test, taken on prescription, and kept under regular clinic checks. This guide explains what PrEP is, how well it works, the testing and monitoring that go with it, and where an expat or traveller can access it here.

Key facts

  • PrEP is tenofovir and emtricitabine, usually a daily tablet, taken by someone who does not have HIV to prevent it.
  • You must test HIV negative before starting, because PrEP is prevention, not treatment, and starting it with undetected HIV can cause resistance.
  • PrEP needs ongoing HIV testing and kidney-function checks, usually every few months, so it is prescribed and monitored by a clinic rather than bought casually.
  • Taken consistently, PrEP lowers the risk of getting HIV from sex by about 99 per cent; it only works when adherence is kept up.
  • PrEP does not protect against other sexually transmitted infections, so it is used alongside condoms and regular STI screening.
  • Thailand offers PrEP free under the NHSO national scheme, but eligibility is tied to that scheme; most expats and travellers use a community or private clinic instead.
  • For a steady supply, settle with one clinic early, keep every follow-up appointment, and do not let your tablets run low.

What is PrEP and how well does it work?

PrEP is a medicine taken by an HIV-negative person to stop them acquiring HIV, and taken consistently it is highly effective. The most common form is a daily tablet combining 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. That figure depends on adherence: protection comes from keeping to the schedule, not from having a supply on hand. PrEP does not protect against other sexually transmitted infections, so it is used alongside condoms and regular testing, not instead of them.

Who is PrEP for?

PrEP is for people who do not have HIV but may be exposed to it, and whether it suits you is a decision to make with a clinician. A clinic 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, testing and monitoring work in Thailand.

What testing and monitoring does PrEP need?

You must test HIV negative before you start, and then repeat HIV testing and kidney-function checks at regular clinic visits. Starting PrEP is not a one-off purchase. Before the first prescription, a clinic confirms you are HIV negative, because PrEP is designed to prevent HIV rather than treat it, and taking it with an undetected infection can lead to drug resistance.

After that, a simple routine follows. Regular visits, usually every few months, repeat the HIV test, check that your kidneys are handling the medicine well, and confirm PrEP still suits you. Many people are screened for other sexually transmitted infections at the same visit. 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, and it is the reason PrEP is prescribed and followed up rather than bought over a counter.

Where can expats and travellers get PrEP in Thailand?

Through a clinic: hospitals, private clinics, and community key population-led health services all provide PrEP, and in the cities you usually have several within reach. Thailand is recognised as a regional leader in providing PrEP, and the community clinics in particular are staffed by people from the communities they serve and are used to international clients.

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 does PrEP cost in Thailand?

What you pay varies by clinic and route, and includes both the medicine and the periodic tests. 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. The cost is not only the tablets, though: the follow-up HIV and kidney tests are part of what PrEP involves, so ask a clinic what their fee covers.

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 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 and prices change.

Is PrEP safe?

PrEP is well established and, for most people, well tolerated, and the follow-up visits are there to keep it that way. Some people 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 monitoring exists partly to watch for this. Alongside repeating the HIV test, a clinic checks that your kidneys are handling the medicine 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, prescribed and monitored in this way.

Should I take PrEP daily or on demand?

Both are established options, and which one fits is a decision for you and the clinic. 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, depends on your circumstances and the medicine, so it is set with a clinician rather than chosen alone.

Whichever route you take, the same point holds: PrEP only protects when it is taken as advised, so adherence matters more than anything. A PrEP clinic can explain which schedule makes sense for you and how to keep to it.

PrEP and PEP: what is the difference?

PrEP is taken before exposure as ongoing prevention; PEP is an emergency course started as soon as possible after a possible exposure. PEP, or post-exposure prophylaxis, 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.

PrEP is confidential, routine preventive care

For some people the barrier is not access but worry about what others might think, and in Thailand’s PrEP clinics this is everyday, confidential work. The community-led services in particular 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.

How do I keep PrEP going while I live or travel here?

Stay with a clinic and keep to the testing schedule, because PrEP only works when taken consistently and safely under monitoring. If you are staying in Thailand for a while, settle with a clinic early, keep your follow-up appointments for the HIV and kidney checks, 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 a medicine you take every day, the priority is never breaking the routine, so plan a few weeks ahead rather than days.

The neutral first step for anyone starting or continuing PrEP is the same: get assessed and monitored by a clinic that can run the HIV test and kidney checks alongside the prescription. That clinical follow-up is what makes PrEP safe and effective, not simply having tablets to hand.

ZoneMD option: Once a clinic has assessed you, confirmed you are HIV negative and set up your monitoring, ZoneMD can help you keep a prescribed, monitored PrEP regimen supplied, with dispensing handled by licensed pharmacy partners. It is a way to maintain the medicine your clinic has prescribed, not a substitute for the test and follow-up. See how ordering works for the steps.

Do and don’t

Do:

  • Get an HIV test and a clinic assessment before you start PrEP.
  • Keep every follow-up appointment for repeat HIV testing and kidney checks.
  • Take PrEP as advised, since protection depends on consistency.
  • Use condoms and get screened for other STIs, which PrEP does not prevent.
  • Ask a clinic what its fee covers, both medicine and tests, before you commit.
  • Settle with one clinic early and keep enough supply to reach your next visit.

Don’t:

  • Start PrEP without confirming you are HIV negative first.
  • Treat PrEP as protection against other sexually transmitted infections.
  • Skip the monitoring visits or let your kidney and HIV checks lapse.
  • Let your supply run low before your next appointment.
  • Rely on PrEP alone if you may already have been exposed, when PEP is the route.
  • Assume a foreign prescription removes the need for a local assessment.

Frequently asked questions

Do I need an HIV test to start PrEP in Thailand? Yes. Confirming you are HIV negative is the first step everywhere PrEP is provided, because PrEP prevents HIV rather than treating it, and starting it with an undetected infection can cause drug resistance. The test is quick and part of the routine clinic visit.

Can I get PrEP in Thailand without seeing a clinic? PrEP is prescribed and monitored, so a clinic assessment, an HIV test and periodic kidney checks are part of using it safely. Rather than trying to skip that, the practical route for expats and travellers is a community or private clinic, some of which offer PrEP free or at low cost.

Does the free NHSO PrEP scheme cover foreigners? The free scheme is tied to Thailand’s national health coverage, so it mainly benefits Thai nationals. Most expats and travellers use a community or private clinic instead, and some community programmes offer PrEP free or at low cost whatever your nationality.

Where to go next

Thailand makes PrEP genuinely accessible, but the important step is clinical, not commercial: the process starts with an HIV test and continues with regular monitoring. If you think PrEP might be for you, contact a PrEP clinic and book that test, which is where it all begins.

For your wider medicine needs while you are here, our guide to buying medicine in Thailand covers pharmacies, bringing your own supply, and delivery. If you are on a long-term visa, chronic medicines and the Thai retirement visa looks at keeping any regular medicine steady. 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.