Which drug used to treat HIV-AIDS is a nonnucleoside reverse transcriptase inhibitor (NNRTI)?
1. Lamivudine (Epivir, 3TC)
2. Zidovudine (Retrovir, AZT)
3. Indinavir (Crixivan)
4. Efavirenz (Sustiva)
Correct Answer: 4
Rationale 1: Lamivudine is an NRTI.
Rationale 2: Zidovudine is an NRTI.
Rationale 3: Indinavir is a protease inhibitor.
Rationale 4: Efavirenz is an NNRTI.
Global Rationale: Efavirenz is an NNRTI. Zidovudine and lamivudine are NRTIs. Indinavir is a protease inhibitor.
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