起作用前我需要用多久PrEP

起作用前我需要用多久PrEP

当每天服用时，PrEP在预防HIV感染方面是安全且高效的。对于接受性肛交（receptive anal sex），PrEP通常需要约7天的每日使用才能达到最大保护效果。对于其他活动，包括插入性肛交（insertive anal sex）、阴道性交和注射毒品，PrEP则需要大约20天的每日使用才能达到最大保护效果。

持续每日服用PrEP能够为高风险群体提供强有力的保护，并显著降低HIV感染的风险。若你在高风险环境中，持续使用PrEP可以大幅减少感染HIV的机会。

How Long Do I Need to Take PrEP Before It Works?

When taken daily, PrEP is safe and highly effective in preventing HIV infection. For receptive anal sex, PrEP reaches maximum protection from HIV in about 7 days of daily use. For all other activities, including insertive anal sex, vaginal sex, and injection drug use, PrEP reaches maximum protection in about 20 days of daily use.

Taking PrEP consistently every day provides strong protection for individuals at high risk, significantly lowering the chances of contracting HIV. If you are in a high-risk environment, consistent use of PrEP can greatly reduce your risk of infection.