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 are much more less side effects than the 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: doctor@drtanandpartners.com

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. Petter Thy

    Please kindly told me the ways that keep our life is long time that during someone have HIV ?

    One more thing do you have medecine to treat this virus is over or not ?

    Awaiting your revert to me back,

    Thank and best regard

    Have a great day

    • Sorry, not sure if I understand your question – but essentially HIV is a very treatable condition with current advances in antiviral medication; there is no cure but as long as it is detected early and treated with medication properly, there is no reason that someone cannot live a fairly normal and healthy life.

    • There are 2 questions i want to ask
      1. I have taking pep for 12 days i see side effect of yellow eyes is it bad me?
      2. Pep need to take only 28 days but why does each bottle come with 30 days?
      Thank you inadvance

      • If you have yellowing of the eyes, please speak to your doctor for a blood test to check your liver function. PEP regimens can vary slightly, but 28 days is generally adequate – however, the bottles come with 30 days of pills so we usually ask our patients to complete the course to avoid confusion. Also helps if a pill is lost down the drain for example.

  2. Hi doctor, I had sex with a sex-worker(girl) on 6/3/2017. I used condom but I found some blood outside the condom(she said this is menstruation) Could tell me what the level of risk?

    • There is no straightforward number I can give with regards to your risk. Menstruation will increase risk of HIV/STD transmission, as would her occupation.

  3. william

    hi dr tan, i m just went through the 4th generation hiv rapid test tdy at your clinic (robertson walk). and it was negative result. means that i need not worry about any of my potential unsafe intercourse for the last few months is it? but how bout those within this few days? i know it need around 10 days to identify the infection by other test. currently i dont have any symptom of it. do I still need to worry about it. is it any risk if condom slip off and contact abit of the body fluid. i m really not sure whether she got any sign of hiv. she seems healthy. thanks!

    • The Combo test is conclusive at 28 days. In other words, if you have had any exposures in the past 28 days that infected you with HIV, the test may not be able to pick it up.

  4. Hi Doc, I was recently prescribed PEP in Singapore (truvada + isentress) at a GP. Out of curiosity, I saw a pic online of the blue pills having “gilead” imprinted on one side and “701” on the other.

    However, the blue truvada pills I’ve received only have “gilead” imprinted on them. Just wanted to clarify if you’ve seen this version of the pills? Also, have you ever heard of the supply chain in Singapore being compromised?

    • Wow. Honestly I have not. In fact, because of your post, I went to double check the stock I have. Indeed there is “Gilead” embossed on one side and “701” on the other.

      In Singapore, Truvada is only available from Gilead. I do not see how it can be compromised unless this Doctor has an alternative, non-official, source. I really hope not because this is really frowned upon by the Ministry.

  5. Hi Doctor,

    I have unprotected sex with Vietnam sex worker and is put under PEP medication after 29 hours.

    1. What is the likeliness of me getting HIV?
    2. After 30-days pep medication, is the 4th gen combo test 95% accurate?

    I have read from other site that window period start after pep medication.


    • 1. I think this discussion is now a moot point. The fact is whatever the risk, you have been given PEP. The risk assessment should have been done with you by the doctor who gave you the PEP in order to warrant the PEP in the first place.

      2. Well, I personally would say it is even higher than 95%. However, please verify this with your doctor.

  6. deandre

    Is it possible to have ars symptoms after pep.if so what is the possible timeline.

    • Good question. I do not know the answer to that. I however think it is a moot point.

      I guess your situation is you took PEP and now have symptoms and are trying to use this to ascertain if you are infected with HIV or not. I strongly suggest you do not do that. It will only cause you mental anguish. Please just see your doctor for testing.

  7. Dear doc, i’ve just had unprotected sex with a sw from orchard towers. There wasnt any cuts or ulcer present on either of us but there was a bit of a scratch like marks on her pubic area due to shave as told by her. She told me she diesnt have any sickness. I tried to scare her by saying i do, to see her reaction. And she was abit scared when i jokingly said that. She has nvr had unprotected sex with other customers before. If what she say is true. How likely am i to get hiv or std?and also if i want to start taking pep, but unable to pay in full amount as it is too expensive, is there an installment like payment method?

    • Hi,
      There is certainly a risk of STD/HIV transmission from unprotected sex from any unknown partner. Unfortunately, we are not able to provide payment by installment for PEP; however, if you are unable to pay for a full course of PEP at first, you may get half first / pay for half and then come back two weeks later to complete the course. If you have any concerns, best to come down to our clinic for a proper consult and we can discuss your options.

  8. Hi Doctor,

    Yesterday afternoon i had sex with a sex-worker , I had a minor cut
    ( due to blister , which jsut popped out fluid before the meet) on my lip which had less than a drop blood after I shower & use towel to wipe my face , After that worker performed oral on me & had protective sex , but during all time we were kissing each other ( lip saliva too ) , I did not gave her oral but just kissed arounf vaginal area ,

    1.Is there possibiity of HIV exposure ?

    2.If yes , 48 hrs exposure is okay to start PEP course & how much efficient the results will be ?

    3.Side effects ? frequency of medicine – I am married , will my wife come to know about i am taking medicine .

    4.Treatment covered by insurance ?

    Request an early reply

    • 5. Which clinic shall i come for discussion & checkup ?

    • Hi Sidd,

      Yes, there is a risk of HIV exposure, albeit small.
      PEP can be initiated within 72 hours of exposure, and is effective in preventing transmission of HIV.
      Common side effects include gastrointestinal discomfort and loose stools, but these are usual temporary.
      This treatment is unlikely to be covered by insurance. You can check with your insurer directly about your coverage.

      Do start PEP as soon as possible, it is more effective the earlier you begin the course.

  9. while attempting anal sex with a CSW, my condom broke and for about 15-20 seconds I was exposed to rectal fluids. I don’t think I penetrated more than once with the broken condom. I changed the condom after that.

    I am currently on PeP. The medicine given to me is a combination of Efravirenz, Lamivudine and Tenfovir Disproxil Fumarate and I have been told to take it for 30 days (instead of 28, as your website indicates). As per you: 1) What is my level of risk?, 2) Is the medicine the right PeP?, 3) Can I test right after finishing PeP? Please help.

    • 1) There are risk of exposure to HIV and STD with a broken condom . You can read further here .
      2) The PeP combination is not the first line medicines recommended by the US CDC guidelines on nPEP . I am sure your doctor has his reasons for prescribing the medicine.
      I would advise that you check with him.
      3) For more information on when to test for HIV post PEP – click here

      • Hi Doctor, after finishing PeP, I did a CMIA HIV test at day 31 and it was non-reactive. How confident can I be that this test result is accurate?

  10. Hello, help me please….
    TEEVIR is PEP?

  11. Dear Doc,
    I went to a massage parlour recently and got a handjob from the masseuse. Few days later(not sure if it was due to masturbation), there is a painless small red patch on my penis. Could i have gotten anything from the encounter? Please advise.

    • Yes you could. There are certainly infections that can be spread via a hand to genital contact. However, we cannot tell you what is causing your red patch. For that you need to see a doctor. If you wish to see us CLICK HERE for contact info.

  12. Help,
    I had unprotected oral sex with 2 HIV positive men, one is undetectable. I’m now on my 3rd day of PEP (truvada and Tivicay) and noticing white spots on my left tonsil that looks like tonsil stones and my throat is beginning to feel sore. Is this normal? Am i at high risk of being positive? Freaking out here I’m only 19.

    • The symptoms you described can be caused by many other medical conditions.

      Based on your activity described, unprotected oral sex with HIV positive person is considered a low risk activity for acquiring HIV.
      You cannot tell if you have HIV or not based on symptoms .
      Worrying on your symptoms at this point in time does not benefit anyone.

      However, I recommend you getting tested for HIV and STD.
      please visit us for a formal consultation . click here for the location.

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