lenograstim lenograstim lenograstim is a recombinant granulocyte colony-stimulating factor which functions as an immunostimulator. it is developed by chugai pharmaceuticals under the brand name granocyte. lenograstimclinical datatrade nameseuprotin, granocyte, lenobio, neutroginahfs/drugs.cominternational drug namesatc codel03aa10 (who) identifierscas number135968-09-1 nchemspidernoneunii6ws4c399gbecha infocard100.207.855 ny (what is this?) (verify)