Emtricitabine is an antiviral medication used to treat HIV-1 infection. Learn about its uses, dosage, side effects, cost, and what to know in 2026.
Emtricitabine is a prescription antiviral medication used in combination with other drugs to treat HIV-1 infection in adults and children.
Sold under the brand name Emtriva and available as a generic, Emtricitabine belongs to a class of drugs called nucleoside reverse transcriptase inhibitors (NRTIs). It's one of the most widely used HIV medications in the world — though you might not recognize the name because it's often included in popular combination pills like Truvada, Descovy, and Biktarvy.
This guide covers everything patients need to know about Emtricitabine in 2026, from what it treats to how much it costs.
Emtricitabine is a synthetic antiviral drug that mimics one of the building blocks of DNA (cytidine). Once inside your cells, it gets converted into its active form and blocks HIV's reverse transcriptase enzyme — the tool the virus uses to copy its genetic material. By jamming this enzyme, Emtricitabine prevents HIV from replicating.
It's sometimes abbreviated as FTC in medical literature.
Emtricitabine is FDA-approved for:
Emtricitabine also has activity against hepatitis B virus (HBV), though it is not FDA-approved as a standalone treatment for hepatitis B.
It is available as a standalone capsule (Emtriva) or as a component of several fixed-dose combination products:
Emtricitabine comes in two forms:
Dosing for adults: One 200 mg capsule once daily, or 240 mg (24 mL) of the oral solution once daily.
Dosing for children: Based on body weight. Children over 33 kg who can swallow capsules take the adult dose. Younger children use the oral solution at 6 mg/kg once daily (up to 240 mg).
Emtricitabine can be taken with or without food. The most important thing is to take it at the same time every day without missing doses. Consistent dosing is critical for keeping the virus suppressed and preventing drug resistance.
If you miss a dose, take it as soon as you remember — unless it's almost time for your next dose. In that case, skip the missed dose and continue your regular schedule. Never double up.
Emtricitabine is not appropriate for everyone. You should not take it if:
Special caution is needed for:
Emtricitabine can be used during pregnancy and is included in preferred HIV treatment regimens for pregnant individuals.
Cost varies depending on whether you're getting brand or generic:
Most insurance plans — including commercial insurance, Medicaid, and Medicare Part D — cover generic Emtricitabine with low copays. Prior authorization is uncommon for the generic.
If cost is a concern, several programs can help:
For a complete breakdown, see our guide to saving money on Emtricitabine.
Emtricitabine is a well-established, effective HIV medication that millions of people rely on every day — whether as a standalone capsule or as part of a combination pill. It's generally well tolerated, affordable in generic form, and available through multiple assistance programs for those who need financial help.
If you're having trouble finding Emtricitabine at your pharmacy, Medfinder can help you locate it in stock near you. For more on potential side effects, read our side effects guide.
You focus on staying healthy. We'll handle the rest.
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