PrEP in Thailand is easy to get: you see a doctor at a clinic or private hospital, take an HIV test and a kidney check, and leave with a prescription. PrEP is a daily pill that cuts the risk of catching HIV, while PEP is a 28-day emergency course that must start within 72 hours of a possible exposure, and the sooner the better.
Thailand is one of the friendliest countries in Asia for HIV prevention, and the clinics are used to curious visitors asking blunt questions. Think of PrEP as the seatbelt and PEP as the airbag: you do not plan for the crash, but you will be glad it is there. This is general information only, not medical advice. See the wider sexual health category for more.
What Is PrEP and How Does It Work?
PrEP, or pre-exposure prophylaxis, is a medicine taken by HIV-negative people before sex to reduce the chance of catching HIV. Taken as prescribed, it is highly effective at preventing HIV. It does nothing against other infections, and it does not replace condoms for syphilis, gonorrhoea, chlamydia or herpes.
It works only if the medicine is in your body in the right amount at the right time, which is why dosing matters. Your doctor will explain how long it takes before you are protected, which can differ depending on the type of sex. If you are planning a trip, start well before you fly, not on the plane.
Should You Take PrEP Daily or Around Sex?
Daily PrEP means one pill every day, and it is the standard approach. Event-based dosing, where you take pills only around sex, exists but is a doctor's call: it does not suit everyone, and you should never improvise it from internet advice. Tell the doctor honestly how often you expect to have sex and with whom.
Most visitors who plan regular nights out choose daily dosing for simplicity. If your trip is short and unpredictable, ask the clinic what they recommend. If you have hepatitis B, mention it, because the doctor needs to plan your medicine and your stopping carefully.
Where Can You Get PrEP in Thailand?
At the Thai Red Cross, at private sexual health clinics such as Pulse Clinic and Silom Community Clinic, and at large private hospitals. Clinics in Bangkok are the easiest for visitors to reach, and many staff speak English. Opening hours and services change, so check before you go.
Bring your passport and tell the staff why you are there. They have heard it all. For STI checks to pair with it, see the Bangkok STI testing guide.
What Tests Do You Need Before Starting PrEP?
A negative HIV test and a check of your kidney function, and doctors often add tests for hepatitis B and other STIs. Starting PrEP while already HIV-positive can cause resistance, so the HIV result matters.
The kidney check is a simple blood test. Your doctor will repeat HIV tests and kidney checks while you are on PrEP, usually every few months. If you are only in Thailand for a few weeks, ask what to do when you get home, including who can keep prescribing and testing for you.
How Much Does PrEP Cost in Thailand?
PrEP typically costs from under a thousand baht to a few thousand baht per month, plus the initial tests and consultation. Generic versions are cheaper than branded ones, and community and Red Cross services are usually the lowest. Prices vary a lot, so ask for a written quote and check before you go.
Add the HIV test, kidney test and doctor's fee to your budget. Private-clinic STI panels are typically ฿2,000 to ฿6,000, and travel insurance may not cover it, so read your policy.
What Is PEP and When Must You Start It?
PEP, or post-exposure prophylaxis, is a 28-day course of HIV medicines taken after a possible exposure, such as a broken condom or unprotected sex. It must start within 72 hours, and the sooner the better. Every hour counts, so don't wait for the morning or for a test result.
Go to a clinic that provides PEP or the emergency department of a large private hospital, which is open around the clock. Tell them what happened and when. You will be assessed, offered a starting dose and given the full course, with follow-up tests. The HIV test guide walks through the steps after a condom breaks.
How Do PrEP and PEP Compare?
Neither one replaces a condom, and your doctor will explain the details.
Do You Still Need Condoms on PrEP?
Yes. PrEP protects against HIV only, not syphilis, gonorrhoea, chlamydia, herpes or other infections. Condoms still matter, along with regular testing, and they also help with pregnancy prevention. Pharmacies and 7-Elevens stock them everywhere. For more on supplies, see the guide to Viagra and condoms in Thai pharmacies.
The sensible package is PrEP, condoms, regular testing and honest conversations. The Bangkok travel guide covers where the clinics sit in the city.
