Symfi Lo

Generic name:efavirenz, lamivudine, and tenofovir [ ef-AV-ir-enz, la-MIV-ue-deen, and-ten-OF-oh-vir ]
Brand names: Symfi, Symfi Lo
Drug class:Antiviral combinations

Medically reviewed by Drugs.com on Nov 23, 2021. Written by Cerner Multum.

What is Symfi Lo?

Symfi Lo is a combination antiviral medicine that is used to treat human immunodeficiency virus (HIV). HIV is the virus that can cause acquired immunodeficiency syndrome (AIDS). Symfi Lo is not a cure for HIV or AIDS.

Symfi is for use in adults and children who weigh at least 88 pounds (40 kilograms).

Symfi Lo is for use in adults and children who weigh at least 77 pounds (35 kilograms).

Symfi Lo may also be used for purposes not listed in this medication guide.

Warnings

If you've ever had hepatitis B, it may become active or get worse after you stop using this medicine. You may need frequent liver function tests for several months.

Do not change your dose or stop taking this medicine without your doctor's advice.

Before taking this medicine

You should not use this medicine if:

• you also take elbasvir and grazoprevir (for hepatitis C); or

• you are allergic to any antiviral combination medicine that contains efavirenz, lamivudine, or tenofovir.

Tell your doctor if you have ever had:

• liver disease (especially hepatitis B or C); or

• kidney disease (or if you are ...