|How long should prep be used before exposure
May 30, 2014
We are a magnetic couple trying to get pregnant. My husband is undetectable for 1 year. How long should I be taking truvada before we start to have condom less sex?
| Response from Dr. Young
Hello and thanks for posting.
It was recently shown that it takes about 1 week for Truvada levels to become adequate for full PrEP protection.
If your husband's viral load is undetectable, your risk from condomless sex (even without PrEP) is very, very low.
Hope that's helpful. Let us know how things work out for you. BY
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