It was during a quiet conversation over kopi at a small cafe in Bangsar that David first heard the word “PrEP.” His friend, a healthcare worker, had been talking about it casually — about how it had completely changed how he thought about HIV risk in his own life. “It’s basically birth control for HIV,” his friend said. “You take a pill every day. The chance of getting HIV becomes almost zero.”
David had been single for about a year, dating casually, mostly using condoms but with the occasional slip. The constant low-grade worry after every encounter had become a kind of background hum he’d learned to live with. The idea that there was something he could just… take… to make that worry essentially disappear felt almost too good to be true. “Where do you even get it?” he asked.
That conversation is happening more often in Malaysia, but PrEP is still under-used compared to other countries with similar epidemics. If you’re sexually active, especially in any pattern that involves new partners, casual encounters, or partners with unknown or known HIV status, PrEP might be one of the most important conversations you have with a doctor this year. Here’s everything you should know.
What Is PrEP?
PrEP stands for Pre-Exposure Prophylaxis. It’s a medication taken regularly by HIV-negative people to prevent HIV infection. Unlike PEP (Post-Exposure Prophylaxis), which is taken after an exposure has already happened, PrEP is taken before exposure — so the medication is already in your body if a risky encounter occurs.
The medication itself is an antiretroviral drug — the same class of drugs used to treat HIV. When taken consistently, PrEP prevents HIV from establishing infection even when the virus enters the body. Studies show it reduces the risk of getting HIV from sex by approximately 99% when taken as prescribed. From injection drug use, the reduction is around 74%.
PrEP has been a major shift in HIV prevention worldwide. Countries that have implemented widespread PrEP access have seen dramatic decreases in new HIV infections among at-risk populations. Malaysia is gradually catching up, and access through private clinics has become much easier in recent years.
How PrEP Is Taken
There are two main ways to take PrEP, and your doctor will help you choose which fits your life better.
Daily PrEP.
This is the most common approach. You take one tablet every day, ideally around the same time. Once you’ve been taking it for about 7 days for anal sex (or 21 days for vaginal sex), you have full protection. You then continue taking it daily as long as you want HIV protection.
On-demand PrEP (also called “2-1-1” dosing).
For people having less frequent sex, an alternative is to take PrEP only around sexual encounters: 2 tablets 2 to 24 hours before sex, 1 tablet 24 hours after the first dose, and 1 more tablet 48 hours after the first dose. This approach is studied mainly in men who have sex with men, and isn’t recommended for people who could become pregnant or for vaginal sex. It requires planning ahead and is best discussed with your doctor.
For most patients we see, daily PrEP is simpler and more reliable — you don’t have to plan around encounters or worry about missed timing. Many patients describe taking PrEP as similar to taking a daily multivitamin or birth control pill — it just becomes part of the morning routine.
Who Should Consider PrEP?
PrEP isn’t necessary for everyone. But it’s strongly worth considering for people in any of the following situations:
- Men who have sex with men, especially with multiple or new partners
- People in a serodiscordant relationship (where one partner is HIV-positive)
- Sex workers or anyone with frequent transactional sex
- People who have had an STI in the past 6 months (which often signals patterns that increase HIV risk)
- People who have used PEP previously and may have ongoing exposure risk
- People who inject drugs or share injection equipment
- Transgender individuals, especially those with multiple or new partners
- Anyone who is sexually active with people whose HIV status is unknown and who doesn’t consistently use condoms
Importantly, PrEP isn’t just for any one demographic — it’s about behaviour patterns and risk situations. We’ve prescribed PrEP to married professionals whose partners travel frequently, single parents in their 40s navigating a new dating scene, students in long-distance relationships with uncertainty about partners’ fidelity, and many other situations that don’t fit any stereotype.
If you’re not sure whether PrEP is right for you, that’s exactly the kind of question to bring to a sexual health consultation. The conversation is confidential and judgment-free.
How Effective Is PrEP, Really?
This is one of the most studied medications in HIV prevention. The numbers are remarkable:
When taken consistently for sexual exposure: approximately 99% reduction in HIV transmission risk.
This is essentially as good as it gets for any preventive medication. The main reason PrEP “fails” in real-world settings isn’t medication failure — it’s missed doses. People who take it consistently as prescribed almost never acquire HIV.
When taken consistently for injection drug use: approximately 74% reduction.
Lower than for sexual exposure but still substantial. Combined with other harm reduction (clean needles, reduced sharing), PrEP becomes part of a layered protection strategy.
PrEP doesn’t protect against other STIs.
This is important. Chlamydia, gonorrhea, syphilis, herpes, hepatitis, and other STIs are not affected by PrEP. Many people on PrEP continue using condoms for STI prevention, while relying on PrEP for HIV prevention specifically. Regular STI screening every 3 to 6 months is also part of the standard PrEP follow-up.
Side Effects and Safety
PrEP is well-tolerated by most people. Side effects, when they occur, are usually mild and short-lived.
Common side effects (usually first 1 to 4 weeks):
- Nausea or mild stomach upset
- Headaches
- Fatigue
- Mild diarrhoea
These typically improve as the body adjusts to the medication. Most people who experience initial side effects find they resolve within a few weeks.
Less common but worth monitoring:
- Small reductions in kidney function (monitored with periodic blood tests)
- Small reductions in bone density (rarely clinically significant in healthy adults)
- Liver function changes (also monitored)
Routine monitoring during PrEP includes blood tests every 3 to 6 months to check kidney function, liver function, and HIV status. Most people on PrEP have normal results consistently throughout their use.
What Starting PrEP Actually Looks Like
Here’s what a typical PrEP journey looks like at our clinic:
Initial consultation (about 30 minutes):
Discussion of your situation, sexual health history, and whether PrEP is right for you. The doctor will explain how it works, what to expect, and answer any questions.
Baseline testing:
Before starting PrEP, we test for HIV (essential — PrEP isn’t appropriate if you already have HIV), hepatitis B status, kidney function, and a full STI panel. Results typically take 1 to 3 working days.
Starting the medication:
Once tests are clear, you start taking PrEP daily. For anal sex protection, full effectiveness is reached in about 7 days. For vaginal sex, about 21 days. Many patients describe the first month as a noticeable shift in their relationship with sex — the constant low-grade worry begins to fade.
Follow-up every 3 months:
Quick check-in appointments every 3 months for HIV testing, kidney function, STI screening, and refill of medication. These are usually short visits.
Stopping when you choose:
PrEP is fully reversible. If your situation changes — long-term monogamous relationship, planning pregnancy, etc. — you can simply stop taking it after a brief tapering protocol. There are no long-term effects from stopping.
Cost in Malaysia
PrEP costs in Malaysia have come down significantly as generic versions have become available. At our clinic, the typical monthly cost ranges from a few hundred ringgit upward, depending on the specific medication used. Some NGOs and public health programs offer subsidised PrEP for eligible populations.
This investment compares favourably with the cost of treating HIV (lifelong medication, regular monitoring, potential complications). For people in higher-risk situations, PrEP is often one of the most cost-effective health investments they can make.
David's Story — One Year On
David came in for an initial PrEP consultation about a week after that conversation in Bangsar. Baseline tests came back clear. He started daily PrEP and has been on it for about 14 months now. His check-ins have all been straightforward — kidney and liver function normal, no side effects beyond mild nausea in the first two weeks, and HIV tests consistently negative.
“The biggest difference is psychological,” he said at his last check-in. “I don’t spend three days post-encounter convinced I’ve made some terrible mistake. I just live my life. It’s honestly been a quiet revolution for me.”
Get Started with PrEP at Dr Prevents
If you’re considering PrEP — whether you’re highly sure it’s right for you, or just curious to learn more — please book a confidential consultation at one of our KL or Selangor clinics. Initial consultations are private, judgment-free, and focused entirely on what makes sense for your specific situation.
PrEP isn’t right for everyone, but for the people it is right for, it can be life-changing. The conversation alone is worth having even if you ultimately decide not to start. Walk-ins welcome, and confidentiality is fully protected throughout.
📞 Take the first step. Have the conversation. 🩺