What is PrEP? Know It All and Start Protect Yourself

正确预防艾滋 | what is PrEP

What is PrEP? 

“PrEP” stands for Pre-Exposure Prophylaxis. The word “prophylaxis” means to prevent or control the spread of an infection or disease. The goal of PrEP is to prevent HIV infection from taking hold if you are exposed to the virus. This is done by taking a pill that contains 2 HIV medications every day.

Why take PrEP? 

The HIV epidemic in Thailand is growing. About 20,000 people get infected with HIV each year. More of these infections are happening in some groups of people and some areas of the country than in others. Taking PrEP could help prevent HIV infection.

Should I consider taking PrEP? 

PrEP is for those who have a high risk of coming in contact with HIV by not using a condom when they have sex with a person who has HIV infection.

You should consider PrEP if you are a man or woman who sometimes has sex without using a condom, especially if you have a sex partner who you know has HIV infection,  if you don’t know whether your partner has HIV infection but you know that your partner is at risk (for example, your partner inject drugs or is having sex with other people in addition to you) or if you have recently been told by a health care provider that you had a sexually transmitted infection. If your partner has HIV infection, PrEP could be an option to help protect you from getting HIV infection while you try to get pregnant, during pregnancy, or while breastfeeding.

 Truvada for PrEP provides 92%-99% reduction in HIV risk for HIV-negative individuals who take the pills every day as directed. If a daily dose is missed, the level of HIV protection may decrease. It only works if you take it. People who use PrEP correctly and consistently have higher levels of protection against HIV.

According to data analysis from the iPrEx study that found PrEP to be effective:

– For people who take 7 PrEP pills per week, their estimated level of protection is 99%.

– For people who take 4 PrEP pills per week, their estimated level of protection is 96%.

– For people who take 2 PrEP pills per week, their estimated level of protection is 76%.


Rates of side effects while on PrEP are low. Mild symptoms such as mild stomach discomfort, dizziness and loss of appetite may appear the first few weeks. Although the risk of side effects from PrEP are very low, safety monitoring is important. When HIV-positive people use the same meds, it is important to check kidney function before starting PrEP and routinely every three months while taking PrEP.


PrEP is appropriate for periods of time when people have greater risk for contracting HIV. Those periods may be short or long or recurrent, depending on the individual. The Center of Disease Control (USA) also recommends that before people discontinue PrEP, we would do ongoing HIV risk-reduction counseling and support. For people who have hepatitis B, we should also discuss whether to continue treatment as a means to control their hepatitis. 


Talking to your local health care provider about PrEP. Or, since you have visit EnvoyMeds.com, we also provides PrEP/ PEP/ HIV Drugs aross Asia continents. Simply vist our “SHOP” and select the item and settle for shipment. As for now, we have open for Alipay / WeChat Payment / Union Pay. But bear in mind, EnvoyMeds.com not selling any of these items besides helping you connect with licensed clinics. For more information, easily click “Help Center”.