- PEP must be started within 72 hours of a possible exposure, according to the Thai Red Cross; go as soon as you can.
- The Thai Red Cross Anonymous Clinic at 104 Ratchadamri Road, Bangkok, offers HIV testing, PEP and PrEP.
- PEP there starts with a specialist's risk assessment and a same-day blood test; PrEP starts with a counsellor's assessment.
- The clinic publishes an in-hours HIV blood test fee of 160 baht; it does not list prices for PEP or PrEP medicines.
- Outside clinic hours, or outside Bangkok, ask a hospital emergency department about PEP without delay.
PEP and PrEP: the difference
PEP, post-exposure prophylaxis, is a course of HIV medicines taken after a possible exposure, such as condomless sex or a needle injury, to reduce the chance of infection. The Thai Red Cross says it must be started within 72 hours; the sooner it starts, the better.
PrEP, pre-exposure prophylaxis, is taken by HIV-negative people before possible exposure. The WHO describes it as antiretroviral medication used to reduce the risk of acquiring HIV, and recommends oral and long-acting options. The WHO advises speaking to a clinician when considering PEP or PrEP.
The Thai Red Cross Anonymous Clinic
The Anonymous Clinic is run by the Thai Red Cross AIDS and Infectious Disease Research Centre at 104 Ratchadamri Road, Pathum Wan, Bangkok 10330, phone 02 251 6711-5. It offers HIV testing, counselling, PrEP, PEP, testing for other sexually transmitted infections and a clinic for transgender people.
For PEP, the centre says you see a specialist who assesses your risk, a blood test is done the same day, and if the test shows no HIV infection you are given PEP to take home. For PrEP, a counsellor assesses your risk first; once you are established on PrEP, its 'PrEP Express' service lets you have a blood test and collect medicine without seeing a counsellor each time.
The centre's pages are mainly in Thai. We did not find a statement on whether foreigners are treated differently, and its fee list does not show separate prices by nationality. Call ahead if you need to check language support.
Opening hours
The centre's office-hours page, read in October 2026, gives in-hours HIV testing on Monday to Friday from 07:30 to 16:30, with the queue closing at 15:00, and the pharmacy open from 08:30 to 16:30. It lists an after-hours clinic on Monday, Wednesday and Friday evenings from 16:30 and on Saturday mornings from 08:30, and says the centre is closed on Sundays and public holidays.
The centre's PrEP and PEP page gives slightly different times, listing after-hours sessions on Wednesday and Friday evenings and Saturday mornings. Because the pages differ, phone before you go, especially in the evening or at a weekend.
Published fees
The centre's fee page lists an HIV blood test at 160 baht in hours (192 baht after hours), a CD4 count at 310 baht, a test for four sexually transmitted infections at 1,200 baht and a 14-infection panel at 2,000 baht. In-hours prices include a basic 50 baht fee for some items. After hours, it adds a doctor's fee of 400 baht, a service fee of 150 baht, 20% on laboratory tests and 10% on antiretroviral medicines.
The page does not list prices for PEP or PrEP medicines, which are dispensed on a doctor's prescription, and notes that prices may change. Ask for the full cost when you arrive.
If the clinic is closed or you are outside Bangkok
Do not wait for the Anonymous Clinic to open if that would take you past 72 hours. Go to a hospital emergency department, explain when the exposure happened and ask about PEP. In an emergency, call 1669.
After a possible exposure, follow-up testing matters. The WHO notes that antibodies usually appear within 28 days of infection, so someone who tests negative soon after a recent exposure may need a repeat test. Ask the clinic or hospital what follow-up tests they recommend and when.
Bringing PrEP or HIV treatment into Thailand
HIV medicines do not appear among the narcotic or psychotropic examples in the Thai FDA's traveller guidance. For prescription medicines that are not controlled, the Royal Thai Embassy in London says travellers can bring up to 30 days of prescribed use, in original labelled containers, with a doctor's letter or prescription. For a longer stay, contact the Thai FDA's Bureau of Drug Control, or arrange PrEP or treatment with a clinic in Thailand.
After a possible HIV exposure
- Note the date and time of the exposure; PEP must start within 72 hours.
- Phone the Anonymous Clinic on 02 251 6711-5 to check it is open.
- If it is closed or too far, go to a hospital emergency department.
- Take your passport and a list of any medicines you take.
- Ask for the full course cost and the follow-up testing plan.
Frequently asked questions
Where can I get PEP in Bangkok?
The Thai Red Cross Anonymous Clinic at 104 Ratchadamri Road offers PEP after a specialist assessment and same-day blood test. Out of hours, go to a hospital emergency department.
How soon do I need PEP?
The Thai Red Cross says PEP must be started within 72 hours of the possible exposure. Go as soon as you can.
Can I get PrEP in Thailand as a foreigner?
The Anonymous Clinic offers PrEP after a counsellor's assessment. Its pages do not mention different rules or prices for foreigners; phone ahead to check.
How much does an HIV test cost at the Anonymous Clinic?
Its published fee is 160 baht in hours and 192 baht after hours, with other fees possible. Prices may change.
Can I bring PrEP into Thailand?
HIV medicines are not among the Thai FDA's controlled examples. The Royal Thai Embassy in London says up to 30 days' supply of non-controlled prescription medicines with a doctor's letter or prescription.
Sources
- Thai Red Cross AIDS and Infectious Disease Research Centre — PrEP and PEP services (in Thai)
- Thai Red Cross AIDS and Infectious Disease Research Centre — Office hours (in Thai)
- Thai Red Cross AIDS and Infectious Disease Research Centre — Service fees (in Thai)
- World Health Organization — HIV and AIDS fact sheet
- Royal Thai Embassy, London — Bringing medications to Thailand
- Thai FDA — Guidance for travellers carrying medications containing narcotic drugs or psychotropic substances into Thailand (version 3, June 2020; hosted by the Ministry of Foreign Affairs)
