Tevagrastim indeholder r- metHuG- CSF (filgrastim), og det udvirker markante stigninger i neutrofiltallet i perifert blod i løbet af 24 timer samt mindre stigninger i antallet af monocytter.
Tevagrastim containing r-metHuG-CSF (filgrastim) causes marked increases in peripheral blood neutrophil counts within 24 hours, with minor increases in monocytes.