氯霉素在水中溶解度很小(1:400),因此氯霉素注射液通常都用乙醇、甘油或丙二醇为溶媒,制成250mg/2ml的注射液。该制剂肌注常引起剧烈疼痛,因此临床上多为静脉给药。但有的为了省事,干脆从小壶直接加入,这是不对的。因为这样做由于溶媒的改变,析出氯霉素结晶,容易堵塞血管,造成危 Chloramphenicol solubility in water is very small (1: 400), so chloramphenicol injection usually ethanol, glycerol or propylene glycol as the vehicle, made of 250mg / 2ml injection. The preparation of intramuscular injection often causes severe pain, so the clinical intravenous administration. However, in order to save trouble, simply add it directly from the canteen, which is wrong. Because of this change due to the solvent, the precipitation of chloramphenicol crystallization, easy to plug the blood vessels, resulting in danger