01 · Topic
Starting PrEP
Who can take PrEP?
Anyone who is HIV-negative and could be exposed to HIV through sex or shared needles. That includes women, straight men, gay and bisexual men, and trans and non-binary people.
What happens at the first visit?
A private chat with the doctor, an HIV test, kidney and hepatitis B checks, and your prescription and plan if the results are fine.
Can I start PrEP the same day I’m tested?
Often, yes, once the HIV test is negative. The doctor may review kidney and hepatitis B results as soon as they arrive.
Can tourists get PrEP in Pattaya?
Yes. Visitors have the same start-up tests and can take a supply home, then continue with their own doctor.
02 · Topic
Taking PrEP
How long until PrEP protects me?
On daily PrEP, about 7 days for anal sex and about 21 days for vaginal or front-hole sex. On 2-1-1, protection comes from the double dose taken 2–24 hours before sex.
What is on-demand 2-1-1 PrEP?
Two pills 2–24 hours before sex, one 24 hours after the first dose and one 48 hours after it. It is only for anal sex and isn’t suitable with hepatitis B or oestradiol.
What if I forget a pill?
Take it when you remember and carry on as normal. Never take two to catch up; if you missed several days, talk to a doctor first.
Can I drink alcohol on PrEP?
Yes. Alcohol doesn’t stop PrEP working; the risk is forgetting a dose after a late night.
03 · Topic
Safety and side effects
Does PrEP have side effects?
Most people feel nothing. Some get mild nausea, headaches or an upset stomach in the first weeks, which usually settle.
Is PrEP bad for my kidneys?
Kidney changes are uncommon and usually reverse if PrEP is stopped. That is why kidney function is checked before you start and monitored over time.
Can I take PrEP if I have hepatitis B?
Often yes, as daily PrEP with extra monitoring. 2-1-1 isn’t suitable, and stopping must be planned with a doctor.
Can I take PrEP while pregnant or with hormones?
The World Health Organization considers daily PrEP safe in pregnancy and breastfeeding, and it can be taken with gender-affirming hormones.
04 · Topic
PrEP, PEP and STIs
What’s the difference between PrEP and PEP?
PrEP is taken before any risk, for as long as you need it. PEP is a 28-day emergency course started within 72 hours after a possible exposure.
I was exposed in the last 72 hours. Can PrEP help?
No, PrEP can’t work after the event. You need PEP as soon as possible, then you can move onto PrEP afterwards.
Does PrEP protect against other STIs?
No. PrEP only prevents HIV, so condoms and regular STI checks still matter.
How often should I test for HIV on PrEP?
Every three months, at each refill visit, plus any time you have symptoms or a worry.
05 · Topic
Travel, buying and costs
Can I bring my own PrEP into Thailand?
Yes, for personal use: up to 30 days of prescribed use in the original labelled packs, with your prescription or a doctor’s letter.
Are generic PrEP pills as good as Truvada?
Genuine registered generics contain the same two medicines as Truvada and protect in the same way.
Is it safe to buy PrEP online?
Only through a service that tests you for HIV and checks your kidneys first. Pills without those checks can be fake or unsafe.
How much does PrEP cost?
It depends on the tests you need, generic or brand, and how many months you take. Ask us for today’s price before you start.
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