Prep (Preexposure Prophylaxis for HIV)
Medically reviewed by Drugs.com. Last updated on Jul 7, 2024.
Preexposure prophylaxis (PrEP) is medicine given to adults and adolescents to prevent HIV infection. PrEP may be given if tests show you are HIV-negative but your risk for infection is high. PrEP may be given as a pill or an injection. PrEP lowers the risk for infection but is not 100% effective. You will still need to use other methods to prevent exposure to HIV.
DISCHARGE INSTRUCTIONS:
Return to the emergency department if:
- You have a fever.
- You have a rash.
- You have new muscle pain or pain in your back or abdomen.
- You urinate more often than usual, have blood in your urine, or have pain while urinating.
- You are more thirsty than usual.
- You have trouble swallowing or breathing.
Call your doctor if:
- You have nausea or diarrhea.
- You are more tired than usual.
- You have new headaches, or you feel dizzy.
- You have trouble sleeping.
- Your eyes or skin turn yellow.
- You are not eating because of appetite loss.
- You are or may be pregnant.
- You have questions or concerns about your condition or care.
Medicines:
The following are ways PrEP may be given:
- Pills may be taken daily. Pills may instead by taken only when you plan to have sex. This is called on demand. For the on-demand schedule, you must take 2 pills 2 to 24 hours before you have sex. Then you take 1 pill 24 hours after sex and 1 pill 48 hours after sex. It is important to follow the schedule. Your healthcare provider can help you decide if the on-demand schedule is better for you than the daily schedule.
- An injection is given every 2 months.
- Take your medicine as directed. Contact your healthcare provider if you think your medicine is not helping or if you have side effects. Tell your provider if you are allergic to any medicine. Keep a list of the medicines, vitamins, and herbs you take. Include the amounts, and when and why you take them. Bring the list or the pill bottles to follow-up visits. Carry your medicine list with you in case of an emergency.
Treatment options
The following list of medications are related to or used in the treatment of this condition.
Prevent or manage an HIV exposure:
- Get regular testing for HIV, as directed. You may need to be tested every 2 to 3 months while you are on PrEP. Your healthcare provider will tell you how often to be tested and which type of test to have.
- Have safe sex. Safe sex means having sex with a person who is not infected or whose infection is controlled with medicines. It also means using condoms each time you have sex. Exposure happens when you have contact with another person's blood, semen, or vaginal fluid. You are exposed if these fluids touch an open area of your skin, such as a cut, or touch a mucus membrane.
- Do not use street drugs that must be injected. You may be exposed to another person's blood by a needlestick through the skin. If you cannot avoid injecting drugs, always use needles that are sterile (germ-free).
- Follow workplace safety rules if you are at risk of exposure. If you think you have been exposed, get first aid right away. If open skin was exposed, wash the area right away with soap and water. Use a gel hand cleaner if you do not have soap or running water. If your eyes were exposed, rinse them with water or saline (a salt solution). Move your eyelids with your fingers as you rinse. Keep contact lenses in while you rinse. Then remove and clean the lenses with contact lens cleaner. Follow workplace guidelines about reporting the possible exposure.
- Ask about pregnancy or breastfeeding. Tell your healthcare provider if you are planning to become pregnant and you are at risk for HIV infection. PrEP may help protect you and your baby from infection before and during pregnancy. PrEP may also be used while you are breastfeeding.
Follow up with your doctor as directed:
Write down your questions so you remember to ask them during your visits.
For support and more information:
- National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, CDC
Web Address: www.cdc.gov/nchhstp/
© Copyright Merative 2024 Information is for End User's use only and may not be sold, redistributed or otherwise used for commercial purposes.
The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.
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Further information
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