Truvada for PrEP: How long does it take to work?
Truvada is a brand-name, once-daily oral tablet that’s prescribed for HIV treatment and HIV pre-exposure prophylaxis (PrEP). When taking
Currently, there is no information available that looks at Truvada’s effective for PrEP for insertiveanal and insertive vaginal sex.
Truvada takes time to build up in certain tissues of the body. Therefore, 3-5 days of daily use isn’t enough time for the drug to reach its full effectiveness for either receptive anal or receptive vaginal sex.
Typically, you will need to take Truvada for 7 days for receptive anal sex and 21 days for receptive vaginal sex.
You can take PrEP in the morning or night, depending on what works best for you. However, you will want to pick a time that allows you to take the drug consistently. Truvada’s prescribing information recommends “strict adherence” to the dosing scheduling to reach the drug’s desired effects for prevention.
Truvada will clear from the bloodstream after 2–5 days of stopping the drug. Your protection from PrEP may remain for 7-10 days, depending on how long you have been taking Truvada or if you have other health factors, such as kidney problems, that affect how well your body breaks down the drug.
If you are unsure of whether your PrEP medication is offering you protection, talk with your doctor. They can determine if it is time for you to restart the drug.
Truvada for PrEP takes time to build up in your tissues and does not work right away to offer protection. The drug takes 7 days of daily use to reach the maximum effectiveness for receptive anal sex and 21 days of daily use for receptive vaginal sex. During this waiting period, your doctor may recommend you use condoms for HIV prevention.
If you have questions about taking Truvada for PrEP, talk with a healthcare professional.
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