Hellwig Thaddaus R, Onisk Mallory L, Chapman Bret A
Department of Pharmacy Practice, South Dakota State University College of Pharmacy, 1305 W. 18th Street, Sioux Falls, SD 57117-5039, USA.
Curr Drug Saf. 2011 Feb 1;6(1):54-8. doi: 10.2174/157488611794480007.
A potential interaction between valproate (VPA) and doripenem leading to decreased valproic acid concentrations in two patients is described. In the first patient case, a 54-year-old female presented to the emergency department following a seizure episode after stopping her medications a few days prior. She was given a 1500 mg (23 mg/kg) intravenous (IV) bolus dose of valproate and restarted on her home regimen of divalproex sodium 750 mg daily which quickly resulted in valproic acid blood concentrations within the reference range. The patient was later started on doripenem 500 mg IV every 8 hours and subsequent valproic acid concentrations decreased by 62%. The second patient was a 54-year-old female transferred from an outlying facility following a motor vehicle accident. The patient was receiving valproate 1250 mg IV every 8 hours for seizure prophylaxis following a traumatic brain injury. She developed pneumonia and was started on doripenem 500mg IV every 8 hours. Valproic acid concentrations decreased by 69% within two days. This case report describes two patients receiving concomitant valproate and doripenem resulting in a 62% and 69% reduction in valproic acid concentration.
本文描述了两例丙戊酸盐(VPA)与多利培南之间可能存在相互作用,导致丙戊酸浓度降低的情况。在第一个病例中,一名54岁女性在几天前停药后癫痫发作,被送往急诊科。她接受了1500毫克(23毫克/千克)静脉推注剂量的丙戊酸盐,并重新开始每日服用750毫克丙戊酸钠的家庭用药方案,这很快使丙戊酸血药浓度达到参考范围。该患者后来开始每8小时静脉注射500毫克多利培南,随后丙戊酸浓度下降了62%。第二个病例是一名54岁女性,在机动车事故后从偏远医疗机构转诊而来。该患者因创伤性脑损伤接受每8小时静脉注射1250毫克丙戊酸盐预防癫痫发作。她患上了肺炎,并开始每8小时静脉注射500毫克多利培南。丙戊酸浓度在两天内下降了69%。本病例报告描述了两名同时接受丙戊酸盐和多利培南治疗的患者,丙戊酸浓度分别降低了62%和69%。