What Is Truvada? Uses, Dosage, and What You Need to Know in 2026

Truvada is one of the most widely recognized medications in HIV medicine. Whether you've been prescribed it for PrEP (HIV prevention) or as part of an HIV treatment regimen, this guide gives you a clear, plain-language overview of what it is, what it does, how to take it, and what to expect.

What Is Truvada?

Truvada is a brand-name prescription medication made by Gilead Sciences. It is a fixed-dose combination tablet that contains two antiviral drugs:

Emtricitabine (FTC): 200 mg — a nucleoside reverse transcriptase inhibitor (NRTI) that mimics a building block of DNA to block HIV's replication enzyme

Tenofovir disoproxil fumarate (TDF): 300 mg — another NRTI that also blocks HIV's reverse transcriptase enzyme, processed by the body to become active tenofovir inside cells

Together, these two drugs form a powerful combination that blocks HIV from replicating in the body. Truvada was first approved by the FDA on August 2, 2004, for HIV treatment, and in July 2012 it became the first medication approved for HIV pre-exposure prophylaxis (PrEP). Generic versions (emtricitabine/tenofovir disoproxil fumarate) became available in 2020.

What Is Truvada Used For?

Truvada has two FDA-approved indications:

HIV-1 Treatment: Used in combination with other antiretroviral medications in adults and children weighing at least 17 kg. Truvada alone is NOT a complete treatment for HIV — it must be used as part of a combination regimen (e.g., with a third drug such as dolutegravir or another agent).

HIV Pre-Exposure Prophylaxis (PrEP): Used alone, once daily, to reduce the risk of sexually acquired HIV-1 infection in HIV-negative adults and adolescents weighing at least 35 kg who are at high risk. When taken consistently, Truvada for PrEP reduces the risk of getting HIV through sex by about 99%.

Who Should Take Truvada for PrEP?

The CDC recommends PrEP for HIV-negative adults and adolescents who are at substantial risk for HIV, including:

People with a sexual partner living with HIV

Men who have sex with men (MSM) who have unprotected sex or have had a recent bacterial STI

Heterosexual individuals with partners of unknown HIV status and additional risk factors

People who inject drugs or have injection drug-using partners

Truvada Dosage: How to Take It

The standard adult dose of Truvada for both HIV treatment and PrEP is:

One tablet of 200 mg/300 mg (emtricitabine/tenofovir disoproxil fumarate) once daily

With or without food (taking with food can reduce GI upset)

At the same time each day — consistency helps maintain effective drug levels

Pediatric doses: Truvada is available in four tablet strengths (100/150 mg, 133/200 mg, 167/250 mg, and 200/300 mg) to accommodate weight-based dosing in children as light as 17 kg. Dosing should be guided by your child's prescriber based on their current weight.

Kidney function adjustment: For HIV treatment patients with moderate renal impairment (CrCl 30–49 mL/min), dosing interval adjustment may be needed. Truvada should not be used for PrEP in patients with CrCl below 60 mL/min.

Is Truvada Available as a Generic?

Yes. Generic emtricitabine/tenofovir disoproxil fumarate became available in the U.S. in October 2020 when Teva launched the first generic. By mid-2021, multiple manufacturers — including Aurobindo, Cipla, Mylan, and Strides — had entered the market. The generic is FDA-approved as therapeutically equivalent to brand Truvada and is significantly less expensive. With a GoodRx coupon, the generic costs as little as $21–$30/month compared to $1,685+ for the brand.

Is Truvada a Controlled Substance?

No. Truvada is not a controlled substance and is not scheduled by the DEA. This means there are no special prescription requirements, no limits on early refills due to controlled substance laws, and no requirement for in-person prescribing visits based on drug scheduling. Any licensed prescriber can prescribe it, including via telehealth.

How Long Does It Take for Truvada to Work for PrEP?

Protection builds up over time as drug levels reach steady state in tissues:

Receptive anal sex: Near-maximum protection after ~7 days of daily dosing

Vaginal sex: Near-maximum protection after ~21 days of daily dosing (drug concentrations are lower in vaginal tissue)

For on-demand PrEP (2-1-1 protocol), which uses Truvada rather than Descovy: 2 pills taken 2–24 hours before sex, 1 pill 24 hours after, 1 pill 48 hours after the first dose. This approach is only studied in cisgender men.

Truvada Is Not a Cure

When used for HIV treatment, Truvada controls the virus but does not cure HIV. When used as PrEP, it prevents HIV infection but does not protect against other STIs. For a detailed look at what to watch out for while taking Truvada, see our guide to Truvada Side Effects.

When you're ready to fill your prescription, use medfinder to find which pharmacy near you has it in stock.