A suspension comprising: microgranules having bead sizes in the range of 100 to 1200 microns of a benzimidazole derivative; said derivative being suspended in a triglyceride ester of a fatty acid; said suspension being stable for a least 1 month.本發明係關於一種懸浮液,其包含:珠粒大小在100至1200微米範圍內之苯并咪唑衍生物之微粒;該衍生物懸浮於脂肪酸之三酸甘油酯中;該懸浮液穩定至少1個月。