PREP (Pre-Exposure Prophylaxis)

Welcome to the Medical Office of Katy’s informative guide on “Pre-Exposure Prophylaxis” or PREP. In this article, we will explore what PREP is, its significance in healthcare, how it works, frequently asked questions, and the importance of understanding and considering PREP for certain individuals.

What Is PREP (Pre-Exposure Prophylaxis)?

PREP, which stands for Pre-Exposure Prophylaxis, is a preventive approach used in healthcare to reduce the risk of HIV infection among individuals who are at high risk of exposure to the virus. It involves taking a daily medication to significantly lower the chances of contracting HIV from sexual contact or injection drug use with an HIV-positive partner or in a high-prevalence community.


PREP is typically prescribed as a daily oral medication called Truvada or Descovy. These medications contain a combination of two antiretroviral drugs that are also used in the treatment of HIV. When taken consistently, PREP can reduce the risk of HIV infection by up to 99%.

Key points about PREP:

Target Population: PREP is recommended for individuals at high risk of HIV, including men who have sex with men, transgender women, heterosexual individuals with HIV-positive partners, and injection drug users.

Daily Dosage: PREP should be taken every day to maintain its effectiveness.

Regular Monitoring: Individuals taking PREP should have regular follow-up appointments with healthcare providers to monitor for HIV infection and assess medication adherence.

Additional Protection: PREP should be used in combination with other preventive measures, such as condom use and safe injection practices, for maximum protection against HIV and other sexually transmitted infections.

Side Effects: Common side effects of PREP may include nausea, diarrhea, and headache, but these tend to be mild and temporary for most individuals.


Is PREP a replacement for condoms? No, PREP is not a substitute for condoms or other preventive measures. It is recommended to use PREP in combination with safer sex practices for maximum protection against HIV and other sexually transmitted infections.

Can PREP prevent other sexually transmitted infections (STIs)? PREP is specifically designed to prevent HIV, not other STIs. Safe sex practices, such as condom use, are still important for protecting against other infections.

Is PREP safe for long-term use? PREP is considered safe for long-term use when prescribed by a healthcare provider and taken as directed. Regular monitoring is essential to assess its ongoing effectiveness and address any potential side effects or health concerns.

PREP (Pre-Exposure Prophylaxis) is a valuable tool in HIV prevention for individuals at high risk of exposure to the virus. At the Medical Office of Katy, we are committed to providing comprehensive healthcare that includes preventive measures like PREP for those who may benefit from it.

If you believe you are at risk of HIV infection or have questions about PREP, it is essential to consult with a healthcare provider who can assess your eligibility, provide guidance, and monitor your health while on PREP. By understanding and considering PREP, individuals can take proactive steps to protect their sexual health and reduce the risk of HIV transmission. Your health and well-being are our top priorities, and we are here to support you in making informed decisions about your healthcare.

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