Symfi Lo

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Symfi Lo treats HIV. Do not skip any doses as this may make it more difficult to treat HIV.

Symfi Lo Overview

Reviewed: February 20, 2018
Updated: 

Symfi Lo is a prescription medication used as a complete regimen to treat human immunodeficiency virus type 1 (HIV-1) infection. It is a single product containing 3 medications: efavirenz, lamivudine and tenofovir disoproxilfumarate. 

Efavirenz belongs to a group of drugs called non-nucleoside reverse transcriptase inhibitors (NNRTIs), and lamivudine and tenofovir disoproxil fumarate are nucleotide reverse transcriptase inhibitors (NRTIs). These drugs work by preventing the virus from replicating.

This medication comes in tablet form and is taken once daily on an empty stomach, preferably at bedtime. 

Common side effects of Symfi Lo include rash and dizziness.

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Symfi Lo Drug Class

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Symfi Lo FDA Warning

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Severe acute exacerbations of hepatitis B have been reported in patients who are co-infected with hepatitis B virus (HBV) and human immunodeficiency virus (HIV-1) and have discontinued lamivudine or tenofovir disoproxil fumarate, two components of Symfi Lo. Monitor hepatic function closely in these patients and, if appropriate, initiate anti-hepatitis B treatment.