OBJECTIVE:To analyze the non-irrational prescriptions in pharmacy intravenous admixture services to ensure patient's medication safety.METHODS:We examined the prescriptions in pharmacy intravenous admixture services from Sep.2006 to Feb.2007 and analyzed the non-irrational ones regarding incompatibility,improper choice of infusion carriers,improper medication frequency,and the incompatibility of Chinese medicines etc.RESULTS:The non-irrational prescriptions totaled 126 cases,of which,46 associated with incompatibility,38 with improper choice of infusion carriers,25 with improper medication frequency and 17 with incompatibility of Chinese medicines.Most of the irrational drug use behaviors were corrected by informing the clinic these medication errors.CONCLUSION:Examining prescriptions in pharmacy intravenous admixture services can improve the safety and effectiveness of patient's use of intravenous drugs.

OBJECTIVE:To establish an HPLC method for the determination of the content of L-arginine in cefradine for injection.METHODS:The chromatographic analysis was carried on LiChrospher Diol column,and the mobile phase was composed of 0.01 mol?L-1 ammonium dihydrogen phosphate buffer solution(adjusted pH to 2.0?0.1 with phosphoric acid)-acetonitrile(25∶75)at a flow rate of 1.0 mL?min-1;the column temperature was 30 ℃;the detection wavelength was 206 nm,and the sample size was 20 ?L.RESULTS:The linear range of L-arginine was 51.2～307.2 ?g?mL-1(r=0.999 9).The average recovery was 100.7%(RSD=0.6%).CONCLUSION:The method is rapid,accurate and simple,and suitable for the determination of L-arginine in cefradine for injection.

OBJECTIVE:To study the stability of Cefoperazone Sodium /Tazobactam Sodium in Fructose-contained 0.9% sodium chloride injection or Invertose Injection.METHODS:The contents of Cefoperazone Sodium /Tazobactam Sodium within 6 hours after mixing with Fructose-contained 0.9% sodium chloride injection or Invertose Injection were determined by HPLC,meanwhile the changes in the appearances and the pH values were observed.RESULTS:The contents of Cefoperazone Sodium and Tazobactam Sodium in Fructose-contained 0.9% sodium chloride injection or Invertose Injection were stable within 6 hours,and the mixed solutions were clear and their pH values were stable on the whole.CONCLUSION:Cefoperazone Sodium /Tazobactam Sodium can de mixed with Fructose-contained 0.9% sodium chloride injection or Invertose Injection for clinical use.