Can I buy PEP at a pharmacy in Thailand? In practice, no — PEP is prescription medicine, and you need a doctor's assessment and a baseline HIV test before you start. The fastest safe route is a clinic or hospital, ideally within hours of the exposure and never later than 72 hours.
Thai pharmacies sell many things over the counter, so the question makes sense. This guide explains why PEP is different and what to do instead on Koh Samui.
Why PEP isn't a pharmacy purchase
PEP is a 28-day course of HIV medicines. It only makes sense after someone checks your risk and your current HIV status.
The World Health Organization's HIV fact sheet says people should seek advice from a clinician when thinking about PrEP or PEP. That advice matters, because the wrong start can cause real problems.
What a pharmacy counter can't do
- Baseline HIV test: PEP should start only after a test shows you are HIV-negative
- Risk assessment: some exposures don't need PEP at all, and a doctor can tell you
- The right regimen: doctors choose medicines based on your health and other medicines you take
- Follow-up plan: you need HIV tests at about 4–6 weeks and about 3 months
Even if a shop offered you HIV pills without a prescription, you would miss all of these steps. You might also get an incomplete course or an older medicine with more side effects.
Where you can get PEP in Thailand
You can get PEP from private clinics and from hospitals, both public and private. Many private clinics can see you the same day and give you the full 28-day supply in one visit.
Rules and practices can differ from one pharmacy to the next, so the safest approach is simple. PEP should always start with a medical assessment, wherever you are.
Pharmacy vs private clinic vs public hospital
| Place | Can you get PEP? | Tests included? | Speed | Cost (typical) |
|---|---|---|---|---|
| Pharmacy | Not the right place; no assessment | No | Fast, but unsafe to self-start | Not applicable |
| Private clinic | Yes, after a doctor's check | Usually baseline HIV test | Often same day | Package price; ask for a quote |
| Public hospital | Yes, via a doctor | Yes | Can involve waiting times | Often lower; varies |
For honest price ranges, see our guide on how much PEP costs on Koh Samui. Prices change, so message us for our current price.
What about fake or online medicine?
Buying HIV medicine online, from a market stall or from a stranger is risky. The UK government's health advice for travellers to Thailand warns that medicine sold on the street may be counterfeit.
A fake or out-of-date pill won't protect you, and you won't know until it's too late. With a 72-hour window, there's no time to gamble.
The same goes for pills shared by friends or bought from websites that skip the medical questions. If a seller doesn't ask about your HIV test or your other medicines, that's a warning sign.
PEP vs PrEP vs emergency contraception
People often mix up these three, especially after a condom breaks. They do different jobs and are sold in different ways.
Emergency contraception is widely sold at Thai pharmacies. HIV prevention medicines like PEP and PrEP should always come through a doctor.
Availability of PEP, PrEP and emergency contraception
| Medicine | What it prevents | Time limit | Where to get it |
|---|---|---|---|
| PEP | HIV after a possible exposure | Start within 72 hours | Clinic or hospital, after a test |
| PrEP | HIV before future exposures | Ongoing, taken in advance | Clinic or hospital, with regular tests |
| Emergency contraception | Pregnancy | Works best as soon as possible | Pharmacy, clinic or hospital |
Emergency contraception does not protect against HIV or STIs. If a condom broke, you may need more than one of these. Our guide on what to do if a condom broke on Koh Samui walks you through it.
What a proper PEP visit looks like
A PEP visit is usually quick, private and practical. You don't need to explain more than you're comfortable with.
- A short, private chat about what happened and when
- A baseline HIV test, often a rapid test with results in minutes
- Other tests if needed, such as kidney function or hepatitis B
- Your 28-day supply and simple advice on taking it
- A follow-up plan, including your HIV test dates
Questions to ask before you go
A quick message to the clinic can save time. It's fine to ask these before you travel:
- Can you see me today, and how soon?
- Is the baseline HIV test done on site, with results the same day?
- Will I leave with the full 28-day supply?
- What does the price include, and are follow-up tests extra?
- Can you give me a written record if I'm flying home soon?
A good clinic will answer clearly and won't pressure you. If the answers are vague, ask again or try somewhere else quickly.
Why a doctor visit doesn't take long
Many people worry that seeing a doctor will be slow, awkward or expensive. In reality, a PEP visit at a private clinic is often shorter than a trip across town to find the right pharmacy.
You also leave with something a pharmacy can't give you: a clear answer on whether you need PEP at all. Some exposures carry very low risk, and a doctor can tell you that too.
For the full picture, read our step-by-step plan for the first 72 hours after a condom breaks.
Getting PEP on Koh Samui
If you're on Samui, skip the pharmacy search and message a doctor. Our confidential HIV PEP service covers the assessment, baseline test and medicine in one visit.
Coming from another island? See our guide to getting PEP after the Full Moon Party for boat tips, or how to keep taking your 28-day PEP course while you travel if you're moving on soon.
After you start
Take every dose for the full 28 days. Our guides to the 28-day PEP course and PEP side effects help you through it.
If you keep finding yourself at risk, ask a doctor whether PrEP would suit you better.
Frequently asked questions
Can I buy PEP over the counter in Thailand?
PEP should not be bought over the counter. It needs a doctor's assessment and a baseline HIV test first, so go to a clinic or hospital.
Can a pharmacist tell me if I need PEP?
A pharmacist can point you to a clinic, but they can't do the full assessment and HIV test. For PEP, a doctor is the right first stop.
Is PrEP sold at pharmacies in Thailand?
PrEP should also come through a doctor, because it needs regular HIV and kidney tests. Read about HIV PrEP on Koh Samui.
Can I bring leftover PEP from a friend?
No. A partial or old supply won't be a full course and may not suit you. Start fresh with a doctor.
What if the clinic is closed?
Message us anyway or go to a hospital. Don't let a closed door push you past 72 hours.
Need PEP on Koh Samui? Skip the pharmacy
PEP must be started within 72 hours — the sooner the better. A quick message now can save you hours of searching.
Message a doctor privately on WhatsApp to start PEP safely on Koh Samui.