Dr. Tan and Partners is one of the few approved Anonymous HIV Testing Centres in Singapore. A detailed write up on our service is available here.

Other STD services: Early STD Screening, Rapid Hepatitis B Blood Test, Swab for Gonorrhea and many more... contact us to make an appointment now!

HIV PEP treatment at our clinic


If you have had a high risk exposure to HIV in the last 72 hours read on.

You are a potential candidate for PEP if:

  • You have been exposed to potentially HIV infected body fluids
  • Your exposure was less than 72 hours ago

Factors that can increase the risk of HIV infection include:

  • Condom Break
  • Presence of Blood (e.g. Menses)
  • Presence of cuts
  • Presence of Ulcers
  • You are not circumcised

International PEP Guidelines

What are the HIV PEP Guidelines? According to the WHO Guidelines on PEP, the following criteria apply: Individuals are eligible for HIV PEP if: • exposure occurred within the past 72 hours; and • the potentially exposed individual is not infected or not known to be infected with HIV; and • mucous membrane or non-intact skin was significantly exposed to a potentially infectious body fluid; and • the source is HIV-infected or the HIV status is unknown. According to the NYHD HIV PEP Guidelines, HIV PEP treatment should be recommended in the following exposures: •Receptive and insertive vaginal or anal intercourseb •Needle sharingb •Injuries with exposure to blood or other potentially infected fluids from a source known to be HIV-infected or HIV status is unknown (including needlesticks with a hollow-bore needle, human bites, accidents) According to the same NYHD HIV PEP Guidelines, HIV PEP treatment should be evaluated on a case-by-case basis in the following exposure scenarios: •Oral-vaginal contact (receptive and insertive) •Oral-anal contact (receptive and insertive) •Receptive penile-oral contact with or without ejaculation •Insertive penile-oral contact with or without ejaculation Factors that increase risk: •Source person is known to be HIV-infected with high viral load •An oral mucosa that is not intact (eg, oral lesions, gingivitis, wounds) •Blood exposure — it is important to note that blood exposure can be minimal and therefore not recognized by the exposed person. If the exposed person reports frank blood exposure, PEP would be indicated These are just guidelines. The ultimate decision on whether to start PEP or not requires a detailed analysis of the risk benefit ratio. You must have this discussion with your doctor in a formal medical consultation.

What HIV PEP drugs do we use?

We use the latest Gold Standard PEP Medicines with fewer side effects and better HIV prevention. This is in accordance with the latest International Standards. 

We use a variety of different Anti-Retro Viral medications in various combinations based on a patient’s specific circumstances.

We do not believe in a ‘on-size-fits-all’ approach.

Although different medicines are used, they all have to be taken for 1 month.


What are the HIV PEP side effects?

With the new PEP Drugs we use, side effects are very rare. Fewer than 1 in 100 of our patients actually develop any side effects.

Common (< 1%) side effects include nausea, diarrhoea and feeling very tired.

Rash and fever are uncommon (< 0.1%) side effects.

There is a theory that these drugs can affect the liver and kidneys temporarily so these have to be monitored.

We routinely monitor all patients who take PEP but have never come across anyone develop kidney or liver problems with the medicines.

The new HIV PEP Drugs that we use have fewer side effects compared to old medicines. Make sure you know what drugs you are taking before you start on the PEP.

How much does the HIV PEP cost?

The usual costs involved are:

  1. Consultation $60-$80
      1. Depending on the duration of the consultation
  2. Blood tests (Full Blood Count, Liver Function, Kidney Function) $140
      1. These tests are to establish a baseline
      2. We do not need to wait for these results to start the PEP treatment
      3. You may not need these tests if you had them done recently e.g. when you did an executive health screening
  3. Rapid HIV test $50
      1. This is to ascertain that you do not have an established HIV infection
  4. Medication $1800
      1. This is for the entire 1 month of medication
      2. The price is the same regardless of which drug regime we use


Total cost $2193.50 – $2214.90 with GST Maximum

If you do not require the blood tests (e.g. you have done them recently) the cost will be lower.


So what now?

If you think you are at risk of being infected with HIV, come down to see us as soon as possible.

We will have an in depth discussion with you on your risks and whether or not it is recommended that you take PEP.

We are a walk in clinic, you do not need an appointment.


Need more advice?

Come down to Our Clinics for a discussion with Our Doctors, or call our clinics for more information:

1.) Robertson Walk – Anonymous HIV Clinic  (+65 6238 7810)

2.) Bencoolen Street (+65 6884 4119)

3.) Novena Medical Centre (+65 6397 2095)

4.) Scotts Medical Centre (+65 6694 2348)

5.) Somerset – Orchard Building (+65 6262 0762)

6.) Katong – East Coast Road (+65 6635 2551)

Where to find us – here

Click Here for Contact Details, Address and Opening Times.

Selected clinics are open on Saturday and Sunday.

Doctor’s Schedule here

Email: [email protected]

Click Here for Contact Details, Address and Opening Times.

All Our Doctors are Fully Certified and Trained to conduct specialised HIV Testing.

For lady patients who prefer female doctors, we have professional certified female Doctors to attend to your medical needs.

We are Open on Weekends.

Our Andrology and Infection Centre at Novena Medical Center is open.

Call us at 63972095 now to book your appointment.



  1. veryworried217

    I am very worried after unprotected insertive oral sex. Should i take pep? pls reply as soon as possible.

  2. Hello Doctor,
    I had unprotected sex with sex worker and I told PEP within 48 hrs. I complete 28 days of PEP . I took rapid (ag / ab ) test on 60th and 87th days of after exposure. Both the result is non reactive.

    Here my question is whether my results is conclusion or not?. please help me doctor.

    • Dr Elaine Loh

      Based on your description, you have not been infected with HIV.

      • Hello Doctor,

        thanks for reply.
        Do I need to take any other testing to conform the result ?.

        I am very much worrying about it.

  3. Hi doc,

    I would like to check with you how reliable is PEP? And i would oso like to check with you what are the medicine used for this PEP treatment?

    • PEP can reduce the risk of HIV transmission up to 95%. We use Truvada and Isentress but other antivirals can also be used.

      • Thanks for the reply doctor. Just want to check with you as well i saw there are other medication used by other clinics. So just wanted to understand abit on why is the 2 medication specially selected and used.

  4. Thumbtack

    Dear Doctor, I accidentally sat on a thumbtack and unsure if there’s any blood on it prior to piercing me. It did hurt through but I did not bleed. Do advise. Does it warrant a test?

  5. Hello Doctor,

    I had sex with CSW on 9th September and within 48 hrs I told PEP. after I complete pep I told Rapid test(ag/ab) on 60th day (after exposure) it is non reactive. is it conformed Result?. or still I need to wait for 90 days. please help me doctor.

  6. Hi doc, yesterday night i had anal sex with another male with condom on, but i did not pull back my foreskin when applying it and the foreskin was pulled back after first penetration with the condom. Then it remained inserted for another 10 seconds after ejaculation, then removed my penis out by holding to the base. Apart from that, i did not have any oral sex but only lick his nipples. What are my risks?

  7. Dark tower

    Hi doc,

    I just had sex on the 11 of november 2017 2am. Now im extremely paranoid as we have unsafe sex. What should i do now?

    • If the exposure is <72 hours ago, you may consider PEP. But if it is more than that, we can only perform testing at the appropriate time. It is best to visit us for a proper consult and evaluation.

  8. Dear Doctor, I recently went to a japanese onsen spa which require all guest to be naked. Thinking back, I was in this rather small tub with slow water flow and movement with many other guys. Does it post any hiv risk as im naked and have my uretha exposed? Thanks doc.

  9. I am a male and I went to massage parlor. After massage session I took Handjob and I sucked her breast nipple nearly for 5 to 10secs max.

    During Nipple sucking I dont see any breast milk or Blood spilled from her to inside of my mouth.

    Also massage girl is a mother of a 2years baby. Before licking her breast I asked does she lactates she told does not lactates.

    Also I have 2 cuts inside mouth at inner side of the cheeks. This was happend while eating food around 9hrs before massaging.

    My question :

    Unknowingly if blood or breast milk or Nipple duscharge spilled into my mouth while sucking her breast nipple for 5 to 10secs max will it cause Hiv ?

    Very stressed over here doctor.
    Thanks for your Help dr.

  10. With regards to my earlier post, am I adequately covered with those PEP? Or shall I return to SG for something else.

  11. Doctor, I received a blowjob followed by protected sex in Thailand. Condom broke as I ejaculated. I immediately went to nearby hospital with my sex partner. We both tested negative in HIV TESTS. I insisted to be given PEP medications (T-Lamivir 150mg, T-Viread 300mg and kaletra ) My first dose of PEP is about 2 hours after exposure.

    I am dead worried right now. I read that if the source is in window period, the HIV will show negative but she can still transmit the disease. Kindly advise me, please. Thank you.

    • What you read is correct; as you are already on PEP, the best advice would be to complete the treatment and do the appropriate testing thereafter.

      • thank You so much for your prompt advise.

        One last question. Is my PEP adequate ? I took it within 2hours.

        Thank you once again.

    • thank You so much for your prompt advise.

      One last question. Is my PEP adequate ? I took it within 2hours.

      Thank you once again.

  12. Jonathan

    Good day Doctor,

    I had protected sex with a sex worker in Phuket on the wee hours of 26th Oct. She was wearing metal dental braces and initially gave me a blowjob without a condom for a few seconds before I put the condom on. Subsequently, we had vaginal intercourse with the same condom on.

    Out of fear, I made my way to the Tourist Clinic in Patong 16 hours post exposure and was issued with PEP medication (Teno-Em – Tenofovir DF 300mg, Emtricitabine 200mg and Lamivir – Lamivudine 300mg). Am I on a good combination of PEP drugs and when should I get tested for HIV or any other form of STD?

    I am currently urinating very frequently and feeling very tired and sleepy. Pls do answer my queries. Thank you.

    • The PEP regimen is adequate. There are many other potential STDs that can be transmitted from your exposure, including chlamydia and gonorrhea which can cause symptoms of urinary frequency and/or discharge. It would be best to come down to our clinics for a proper consult and evaluation.

  13. Hi Dictor,I took a 4th generation test next day after i finished pep,which came as a negative.Is this conclusive ?Can i move on ?I cannot hold the stress anymore

    • I had unprotected vaginal sex,and i was put on PEP 56 hours later.After i finish PEP 28 days next day I took a 4th generation test.which cane as a negative.Is this conclusive?Can i move on?Please answer

  14. John Choo

    Hi doctor,If I get my partner tested ab/ag and rna negative.In your opinion can stop take pep after the last exposure with her.

    • I mean can I stop take pep if her status is negative

    • I would assume so, yes. You should speak to the doctor who prescribed you the PEP in the first place as I cannot really comment without full knowledge of your exposure risk.

  15. Hi dr. thank you for your reply.
    I had unprotected virginal sex with prostitute in Bangkok.
    And I started PEP 71 hours later.
    I got 4th gen test 5times(baseline, 30 days after exposure, 60days after exposure, 84days after exposure, 122 days after exposure) and fortunately, the results are all negative.
    But, still I have some anxiety. because I heard that in case of pep and hiv-hcv coinfection, one needs a test up to 1 year.
    Do I need hcv antibody or PCR test?

    • I believe your tests are more than sufficient and you should move on with your life. You can check for hepatitis C if you are concerned but realistically you do not have to worry.


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  2. HIV Prevention: To HIV PrEP or not to HIV PrEP? | HIV - […] is pre exposure. HIV Post Exposure Prophylaxis is post exposure. PrEP is to be taken before you are exposed.…

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