Makrocytose blev ikke evalueret ved disse afprøvninger, men blev fundet værende forbundet med Zerit i en tidligere afprøvning (MCV > 112 fl forekom hos 30% af patienterne behandlet med Zerit).
Macrocytosis was not evaluated in these trials, but was found to be associated with Zerit in an earlier trial (MCV > 112 fl occurred in 30% of patients treated with Zerit).