HIV Prevention in Pattaya: PrEP & PEP
Experienced doctor. No judgment. Complete privacy.
Confidential, physician-led HIV prevention for people considering PrEP or needing urgent PEP assessment after a potential HIV exposure in Pattaya, Chonburi, Thailand.
On This Page
- Trusted, Non-Judgmental Care
- PrEP vs PEP Comparison
- What is HIV PrEP?
- PrEP Clinical Options
- How to Take PrEP Correctly
- Daily PrEP Pathway
- Missed PrEP Doses
- PrEP Health Monitoring
- What is HIV PEP? (Time-Sensitive)
- Urgent PEP Protocol
- How to Take PEP
- The 72-Hour Window
- What Counts as Exposure?
- PrEP vs PEP Table
- Comprehensive HIV Testing
- PrEP/PEP and STIs
- Absolute Confidentiality
- Experienced Physician Profile
- Pattaya & Chonburi Care
- Frequently Asked Questions
- Clinical References
HIV Prevention Should Feel Safe to Talk About
You can talk to a doctor about HIV prevention without fear, shame, or judgment.
Experienced Physician
Care is led directly by an experienced specialist physician providing expert medical assessment, proper protocols, and individualized guidance.
No Judgment
We provide a completely open, respectful, and reassuring environment where your lifestyle and health choices are met with empathy and professionalism.
Complete Privacy
Your records, consultations, and personal information remain strictly confidential under the highest medical privacy and data protection standards.
Understanding the Prevention Continuum: PrEP vs. PEP
Two distinct clinical interventions designed for different moments in your health journey.
HIV PrEP (Pre-Exposure Prophylaxis)
Taken proactively before potential HIV exposure by individuals who are HIV-negative to maintain ongoing, reliable protection against acquisition.
HIV PEP (Post-Exposure Prophylaxis)
Taken urgently after a potential HIV exposure as a short-term 28-day course to prevent the establishment of infection.
What is HIV PrEP?
Proactive protection designed for individuals seeking reliable, ongoing defense against HIV.
Pre-Exposure Prophylaxis (PrEP) is a highly effective biomedical intervention where antiretroviral medications are taken by HIV-negative individuals to prevent HIV acquisition. PrEP works by blocking key viral replication pathways if the virus enters the body.
PrEP is intended strictly for individuals who do not have HIV. Eligibility is established through professional clinical consultation and risk assessment rather than a blanket prescription approach. Baseline HIV testing must confirm a negative status prior to initiation, and ongoing health monitoring ensures long-term safety.
PrEP Clinical Options & Regimens
Tailored prevention strategies aligned with current national and international guidelines.
Daily Oral PrEP
Administration: One pill taken orally once daily at consistent times.
Suitability: Highly recommended across diverse populations with ongoing exposure risk, providing robust, stable tissue drug levels.
Monitoring: Periodic renal function checks and routine quarterly HIV/STI screening.
Event-Driven / On-Demand Oral PrEP
Administration: The 2-1-1 dosing schedule (2 pills 2-24 hours before sex, 1 pill 24 hours after the first dose, and 1 pill 48 hours later).
Suitability: Validated for cisgender men who have sex with men under current clinical guidelines.
Important Note: Not universally applicable to all anatomical exposure types or demographics; physician evaluation is mandatory.
How to Take PrEP Correctly
Consistency and adherence are vital to maintaining high protective efficacy.
Whether utilizing daily oral dosing or event-driven schedules (where clinically appropriate), adherence directly dictates clinical protection. Starting PrEP requires verified baseline HIV negativity. If dosing schedules are interrupted or missed, protective tissue levels may decline, necessitating physician consultation to review safe resumption and re-testing requirements.
The Daily PrEP Clinical Pathway
A clear, structured medical journey ensuring safety from consultation to ongoing care.
Initial Consultation
Private discussion with our physician regarding your health goals and lifestyle.
Baseline HIV & Lab Testing
Confirming HIV-negative status and assessing baseline renal and hepatic markers.
Prescription & Initiation
Guideline-directed PrEP selection tailored to your physiological profile.
Ongoing Monitoring
Regular check-ins every 3 to 6 months for refill assessments, lab tests, and STI screening.
PrEP Side Effects & Blood Monitoring
Understanding what to expect when starting PrEP and the importance of routine health tracking.
Common Side Effects
Most individuals tolerate PrEP well. During the first few weeks, some may experience mild, transient side effects as the body adjusts to the medication:
- Mild nausea or gastrointestinal discomfort
- Headache
- Slight fatigue
These typically resolve on their own. Our physician will work with you to manage symptoms.
Routine Blood Monitoring
Regular health check-ups ensure your safety while on PrEP:
- Baseline Testing: Kidney function, liver markers, and HIV status before initiation.
- Quarterly Follow-up: Every 3 months, we conduct routine HIV testing, STI screening, and renal function monitoring.
Managing Missed PrEP Doses
Guideline-based answers for common adherence questions.
What if I forget one dose?
Take the missed pill as soon as you remember. However, if it is almost time for your next scheduled dose, skip the missed pill and resume your regular routine. Never take a double dose to make up for a missed pill.
What if I miss several doses or have recent exposure?
Missing multiple consecutive doses reduces protective drug concentrations in tissue. Contact our clinic immediately for clinical guidance, risk evaluation, and interim HIV testing.
PrEP Health & Safety Monitoring
Comprehensive ongoing care to ensure your health remains fully supported.
Safe PrEP maintenance involves scheduled follow-up evaluations. Routine monitoring protocols typically encompass:
- Quarterly HIV Testing: Ensuring continued negative status and adherence verification.
- Renal Function Assessment: Periodic blood tests evaluating creatinine clearance and kidney markers.
- STI Screening: Regular testing for chlamydia, gonorrhea, syphilis, and viral hepatitis.
- Side Effect & Adherence Review: Open, non-judgmental discussions with your physician regarding tolerability.
HIV Post-Exposure Prophylaxis (PEP)
Emergency medical intervention following a potential HIV exposure.
Urgent Medical Action Required
If you may have had a significant HIV exposure, seek medical assessment immediately.
Post-Exposure Prophylaxis (PEP) is a 28-day course of antiretroviral medications prescribed after potential HIV exposure to prevent the virus from establishing chronic infection. According to current WHO and CDC guidance, PEP is most effective when initiated as soon as possible—ideally within 24 hours, and strictly no later than 72 hours following exposure.
The Urgent PEP Clinical Protocol
A streamlined emergency pathway designed for rapid assessment and medication initiation.
Urgent Contact & Assessment
Immediate consultation with our physician to evaluate exposure timing and nature.
Baseline Diagnostics
Baseline HIV testing and renal/hepatic screening.
Guideline-Based Prescription
Dispensing a 28-day antiretroviral course tailored to clinical standards.
Completion & Follow-Up Testing
Post-course HIV serology and comprehensive STI re-screening.
How to Take PEP Correctly
Critical instructions for completing your emergency prevention course.
PEP must be taken exactly as prescribed by your physician for the full 28-day duration without interruption. Stopping early or missing doses compromises effectiveness. If you experience severe side effects, vomiting, or missed doses, contact our clinic immediately for professional guidance. Never share your PEP medication.
PEP: The 72-Hour Window
Time is critical. Understanding the therapeutic window for emergency prophylaxis.
Immediate Care
The optimal moment to seek assessment and begin intervention.
Highly Effective
Initiation within the first 24 hours yields maximum clinical efficacy.
Urgent Evaluation
Strong protective benefit when started promptly within this window.
Final Guideline Window
The outer threshold recommended by official guidelines for routine PEP initiation.
Note on 72+ Hours: If more than 72 hours have passed since potential exposure, routine PEP initiation is generally not recommended by current guidelines; however, urgent medical evaluation remains essential for baseline testing, counseling, and long-term follow-up planning.
What Counts as a Potential HIV Exposure?
Recognizing circumstances that warrant professional clinical evaluation.
Condom Breakage
Slippage or failure of barrier protection during sexual intercourse with a partner of unknown status.
Condomless Exposure
Unpreserved sexual contact where HIV status is unknown or viral suppression is unverified.
Occupational / Blood
Needle-stick injuries, mucosal splashes, or direct blood exposure in healthcare or other settings.
PrEP vs. PEP Comparison
A quick-reference guide distinguishing the two clinical interventions.
| Feature | PrEP (Pre-Exposure) | PEP (Post-Exposure) |
|---|---|---|
| Timing | Taken before potential exposure | Taken urgently after potential exposure |
| Purpose | Ongoing proactive protection | Emergency short-term prevention |
| Duration | Ongoing daily or event-driven use | Strict 28-day course |
| Urgency | Planned preventive care | Time-sensitive emergency (<72 hours) |
| Initial Testing | Baseline HIV-negative confirmation required | Urgent baseline testing upon presentation |
| Follow-up | Every 3 to 6 months | Post-course testing at guideline intervals |
PrEP & PEP Dosing Schedules
| Protocol | Description | Usage |
|---|---|---|
| Daily PrEP | 1 pill daily | Continuous protection |
| Event-Driven (2-1-1) | 2 pills (2-24h before), 1 pill (24h after), 1 pill (48h after) | For eligible individuals |
| PEP | 1 pill daily for 28 days | Emergency prevention |
Comprehensive HIV Testing Protocols
Accurate diagnostics grounded in current laboratory standards and window periods.
HIV testing is a cornerstone of both PrEP and PEP pathways. Utilizing high-sensitivity fourth-generation antigen/antibody assays and rapid diagnostics, our medical team evaluates your status accurately while accounting for viral window periods. Testing is conducted confidentially with pre- and post-test counseling.
PrEP, PEP, and Sexually Transmitted Infections
Understanding the vital distinction between HIV prevention and comprehensive sexual health.
While PrEP and PEP offer exceptional efficacy against HIV acquisition, they do not protect against other sexually transmitted infections such as chlamydia, gonorrhea, syphilis, or hepatitis. Comprehensive sexual health care at ASY Clinic integrates routine STI screening alongside your HIV prevention plan.
Explore related clinical services:
Prevention Programs
| Program | Details | Price (THB) |
|---|---|---|
| PrEP Program | Medication (1 Bottle) + Physician Consultation | 3,650.- |
| PEP Program | Medication (1 Course) + Physician Consultation | 5,300.- |
Your Sexual Health Is Private.
At ASY Clinic, absolute discretion and respect form the foundation of our care.
You will experience confidential consultations, private medical assessments, and compassionate, non-judgmental communication. Our professional environment ensures you can discuss your health openly and receive evidence-based medical care in total security.
Experienced Medical Care Without Judgment
Meet the clinical leadership guiding your sexual health care at ASY Clinic.
Dr.Sirirat Nakdang, MD
Specialty: Board-Certified Urologist & Sexual Health Specialist
Medical License: [Insert License Number]
Clinical Experience: Years of specialized expertise in urology, modern sexual health management, and guideline-driven HIV prevention protocols.
Dedicated to providing respectful, confidential, and evidence-based medicine tailored to each patient's individual needs.
![Dr. [Urologist Name] - Board-Certified Urologist](/assets/physician-profile.jpg)
Private HIV Prevention Care in Pattaya
Serving local residents, expatriates, and international visitors across Pattaya and Chonburi.
ASY Clinic provides confidential, physician-led HIV prevention services for people living in or visiting Pattaya and Chonburi. Whether you require routine PrEP consultations, ongoing monitoring, urgent PEP assessment, or confidential HIV testing, our clinic delivers expert medical care in a welcoming, discrete environment.
We align closely with Thai national Department of Disease Control (DDC) standards while upholding international medical benchmarks for sexual health and urology.
Frequently Asked Questions
Medically reviewed answers regarding HIV PrEP, PEP, testing, and confidentiality.
What is PrEP?
PrEP (Pre-Exposure Prophylaxis) is a prescription medication taken by HIV-negative individuals to significantly reduce their risk of acquiring HIV.
What is PEP?
PEP (Post-Exposure Prophylaxis) is an emergency 28-day course of antiretroviral medications taken after a potential HIV exposure to prevent infection.
What is the difference between PrEP and PEP?
PrEP is taken proactively before exposure for ongoing protection, whereas PEP is taken urgently after potential exposure as an emergency intervention.
How do I take PrEP?
PrEP can be taken daily as a single oral tablet or event-driven (2-1-1) for eligible individuals, as determined by clinical consultation.
Can I take PrEP every day?
Yes, daily oral PrEP is the most widely established dosing regimen, providing reliable and continuous tissue protection.
Can PrEP be taken only around sex?
Event-driven (on-demand) PrEP is suitable for specific populations (such as cisgender men who have sex with men) following professional clinical evaluation.
What if I miss a PrEP dose?
Take the missed dose as soon as remembered, unless it is almost time for the next scheduled dose. Never double up doses.
Do I need an HIV test before PrEP?
Yes. A confirmed negative HIV test is mandatory before initiating any PrEP protocol.
How often should I follow up while taking PrEP?
Patients typically follow up every 3 to 6 months for routine HIV testing, renal monitoring, and STI screening.
What happens if I have a potential HIV exposure while taking PrEP?
Consult our physician immediately to review adherence history, perform testing, and determine if further clinical steps are required.
How soon should PEP be started?
PEP should be initiated as soon as possible after exposure—ideally within 24 hours and strictly no later than 72 hours.
Is PEP effective after 72 hours?
Current guidelines generally do not recommend routine PEP initiation after 72 hours, though urgent medical evaluation remains essential.
How long do I take PEP?
PEP is prescribed as a strict 28-day course of antiretroviral medications.
What happens after finishing PEP?
Follow-up HIV testing is scheduled upon completion of the 28-day course and at subsequent guideline-recommended intervals.
Do I need HIV testing after PEP?
Yes. Confirmatory HIV testing after completing PEP is required to verify status.
Does PrEP protect against gonorrhea or chlamydia?
No. PrEP protects exclusively against HIV and does not prevent other sexually transmitted infections.
Does PEP protect against STIs?
No. PEP is designed solely for HIV prevention and offers no protection against bacterial or other viral STIs.
Can I get PrEP in Pattaya?
Yes. ASY Clinic provides complete PrEP consultations, lab testing, and prescription management in Pattaya.
Can I get PEP in Pattaya?
Yes. Urgent PEP evaluations and prescriptions are available at ASY Clinic for individuals presenting within the 72-hour window.
Is the consultation confidential?
Absolutely. All consultations and medical records are strictly confidential under medical privacy standards.
Clinical References & Guidelines
Our clinical protocols are informed by established national and international medical authorities.
Guidelines and recommendations are reviewed periodically and may change as evidence evolves.
- CDC HIV PrEP Clinical Guidance: Centers for Disease Control and Prevention. US Public Health Service: Preexposure Prophylaxis for the Prevention of HIV Infection in the United States. [Current Edition]. Official URL: https://www.cdc.gov/hiv/library/reports/prep-guidelines.html
- CDC HIV PEP Clinical Guidance: Centers for Disease Control and Prevention. Updated Guidelines for Antiretroviral Postexposure Prophylaxis after Sexual, Injection Drug Use, or Other Nonoccupational Exposure to HIV. [Current Edition]. Official URL: [Placeholder]
- WHO HIV PEP Guidelines: World Health Organization. Guidelines on Post-Exposure Prophylaxis for HIV and Recommendations on the Use of Antiretroviral Drugs. [Current Edition]. Official URL: https://www.who.int/publications/i/item/9789240092288
- WHO HIV PrEP Provider Guidance: World Health Organization. Consolidated Guidelines on HIV Prevention, Testing, Treatment, Service Delivery and Monitoring. [Current Edition]. Official URL: [Placeholder]
- Thailand National HIV Guidelines: Thailand Ministry of Public Health, Department of Disease Control (DDC). National Guidelines on HIV/AIDS Treatment and Prevention. [Current Edition]. Official URL: https://ddc.moph.go.th/das/index.php
Medical Review & Editorial Information
Medically reviewed by: Dr Sirirat Nakdang, MD, Board-Certified Urologist, ASY Clinic
Clinical specialty: Urology & Sexual Health
Last clinical review: August 13, 2026
Last updated: August 13, 2026
Guideline review: August 2026
Editorial Policy: All clinical content is authored and reviewed by qualified medical specialists to ensure strict adherence to evidence-based medicine, accuracy, and patient safety standards.
Medical Disclaimer
This page provides general educational information and does not replace an individual medical consultation. PrEP and PEP require appropriate clinical assessment. Prescription medication should only be taken according to medical advice. PEP is time-sensitive. If you believe you may have been exposed to HIV, seek urgent medical assessment immediately. Clinical guidelines may change as new evidence becomes available.