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How quickly does PrEP start working?

When taken daily, PrEP is safe and highly effective in preventing HIV. PrEP reaches maximum effectiveness for receptive anal sex (bottoming) after about 7 days. For all other activities, including insertive anal sex (being the top) and vaginal sex, PrEP reaches maximum effectiveness after about 21 days.

Get PrEP for HIV Prevention At Home

Nurx offers PrEP for HIV prevention for as little as $0 with insurance for medication.

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