The Federal Joint Committee (G - BA) specified two appropriate comparator therapies according to the approval status: Treatment - naive patients, i.e. patients who had not been treated for HIV before, were to receive efavirenz in combination with tenofovir and emtricitabine or in combination with abacavir and lamivudine. (sciencedaily.com)
Concomitant administration of efavirenz has been found to reduce plasma levels of levonorgestrel (AUC) by around 50 %. (medicines.ie)
People who were taking efavirenz (an HIV antiretroviral medication) took either valerian or a placebo nightly one hour before sleep for four weeks. (verywell.com)