What does Symfi contain along with Efavirenz?

Symfi is a fixed-dose combination medication primarily used for the treatment of HIV-1. It combines Efavirenz, a non-nucleoside reverse transcriptase inhibitor (NNRTI), with two other medications: Lamivudine and Tenofovir Disoproxil Fumarate (TDF). Lamivudine is a nucleoside reverse transcriptase inhibitor (NRTI), and together with TDF, they provide a robust antiviral effect by targeting different stages of the HIV replication cycle. This combination helps in managing HIV effectively, as it reduces the viral load and helps maintain immune function.

In the context of your question, the correct choice accurately reflects the components that make up Symfi. Other combinations presented in the options consist of different drug pairings that do not match the established formulation of Symfi, thus validating the correctness of the selected answer regarding its actual ingredients.