PEP对我有用吗？

PEP对我有用吗？

如果你是HIV阴性或不知道自己的HIV状态，并且在过去72小时内：

• 你认为自己可能在性行为中暴露于HIV（例如，避孕套破裂），

• 与他人共享针具和吸毒器具（例如，棉花、加热器、水），

• 或者遭遇了性侵犯，

那么你应该尽快与医疗提供者或急诊科医生讨论是否需要使用PEP（暴露后预防）。

PEP仅在紧急情况下使用，必须在可能暴露于HIV后72小时内开始使用。PEP并不是其他HIV预防方法的替代品，例如暴露前预防（PrEP），即每天服用HIV药物来降低感染风险；每次性行为时正确使用避孕套；以及每次注射时只使用自己全新的、无菌的针具和器具。

PEP有效，但不是100%有效，因此在服用PEP期间，你应该继续与性伴侣使用避孕套，并且保持安全注射的习惯。这些措施可以保护你避免再次暴露于HIV，并在你使用PEP期间减少将HIV传播给他人的风险。

如果你是医疗工作者，并且认为自己在工作中可能暴露于HIV，请继续查看相关问题。

PEP对我有用吗？

If you’re HIV-negative or don’t know your HIV status, and in the last 72 hours you

1. think you may have been exposed to HIV during sex (for example, if the condom broke),
2. shared needles and works to prepare drugs (for example, cotton, cookers, water), or
3. were sexually assaulted,

talk to your health care provider or an emergency room doctor about PEP right away.

PEP should be used only in emergency situations and must be started within 72 hours after a recent possible exposure to HIV. It is not a substitute for regular use of other proven HIV prevention methods, such as pre-exposure prophylaxis (PrEP), which means taking HIV medicines daily to lower your chance of getting infected; using condoms the right way every time you have sex; and using only your own new, sterile needles and works every time you inject.

PEP is effective, but not 100%, so you should continue to use condoms with sex partners and safe injection practices while taking PEP. These strategies can protect you from being exposed to HIV again and reduce the chances of transmitting HIV to others if you do become infected while you’re on PEP.

If you’re a health care worker and think you’ve had a possible HIV exposure at work, see the following question.