I kombinationsstudier med Zerit og lamivudin plus efavirenz, var hyppigheden af perifere neurologiske symptomer 19% (6% af moderat til svær grad) med en 2% ophørsrate pga. neuropati.
In combination studies of Zerit with lamivudine plus efavirenz, the frequency of peripheral neurologic symptoms was 19% (6% for moderate to severe) with a rate of discontinuation due to neuropathy of 2%.