Case reports in the literature have shown that co-administration of carbapenems, including meropenem, to patients receiving valproic acid or divalproex sodium results in a reduction in valproic acid concentrations. The valproic acid concentrations may drop below the therapeutic range as a result of this interaction, therefore increasing the risk of breakthrough seizures. Although the mechanism of this interaction is unknown, data from in vitro and animal studies suggest that carbapenems may inhibit the hydrolysis of valproic acid's glucuronide metabolite (VPA-g) back to valproic acid, thus decreasing the serum concentrations of valproic acid. If administration of Meropenem for injection is necessary, then supplemental anti-convulsant therapy should be considered
Probenecid competes with meropenem for active tubular secretion, resulting in increased plasma concentrations of meropenem. Co-administration of probenecid with meropenem is not recommended.
/SRP:/ Immediate first aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR if necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on the left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. Obtain medical attention. /Poisons A and B/
/SRP:/ Basic treatment: Establish a patent airway (oropharyngeal or nasopharyngeal airway, if needed). Suction if necessary. Watch for signs of respiratory insufficiency and assist ventilations if needed. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for pulmonary edema and treat if necessary ... . Monitor for shock and treat if necessary ... . Anticipate seizures and treat if necessary ... . For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with 0.9% saline (NS) during transport ... . Do not use emetics. For ingestion, rinse mouth and administer 5 mL/kg up to 200 mL of water for dilution if the patient can swallow, has a strong gag reflex, and does not drool ... . Cover skin burns with dry sterile dressings after decontamination ... . /Poisons A and B/
来源:Hazardous Substances Data Bank (HSDB)
毒理性
解毒与急救
/SRP:/ 高级治疗:对于无意识、严重肺水肿或严重呼吸困难的病人,考虑进行口咽或鼻咽气管插管以控制气道。使用气囊面罩装置的正压通气技术可能有益。考虑使用药物治疗肺水肿……。对于严重的支气管痉挛,考虑给予β激动剂,如沙丁胺醇……。监测心率和必要时治疗心律失常……。开始静脉输注5%葡萄糖水(D5W)/SRP: "保持开放",最小流量/。如果出现低血容量的迹象,使用0.9%生理盐水(NS)或乳酸林格氏液。对于伴有低血容量迹象的低血压,谨慎给予液体。注意液体过载的迹象……。用地西泮或劳拉西泮治疗癫痫……。使用丙美卡因氢氯化物协助眼部冲洗……。/Poisons A and B/
/SRP:/ Advanced treatment: Consider orotracheal or nasotracheal intubation for airway control in the patient who is unconscious, has severe pulmonary edema, or is in severe respiratory distress. Positive-pressure ventilation techniques with a bag valve mask device may be beneficial. Consider drug therapy for pulmonary edema ... . Consider administering a beta agonist such as albuterol for severe bronchospasm ... . Monitor cardiac rhythm and treat arrhythmias as necessary ... . Start IV administration of D5W /SRP: "To keep open", minimal flow rate/. Use 0.9% saline (NS) or lactated Ringer's if signs of hypovolemia are present. For hypotension with signs of hypovolemia, administer fluid cautiously. Watch for signs of fluid overload ... . Treat seizures with diazepam or lorazepam ... . Use proparacaine hydrochloride to assist eye irrigation ... . /Poisons A and B/
Approximately 70% of the intravenously administered dose is recovered as unchanged meropenem in the urine over 12 hours, after which little further urinary excretion is detectable. Urinary concentrations of meropenem in excess of 10 ug/mL are maintained for up to 5 hours after a 500 mg dose.
Meropenem is distributed into most body tissues and fluids, including bronchial mucosa, lung, bile, gynecologic tissue (endometrium, myometrium, ovary, cervix, fallopian tube), muscle, heart valves, skin, interstitial and peritoneal fluid, and CSF. Plasma protein binding is approximately 2%. The drug is partially metabolized to at least one microbiologically inactive metabolite. About 70% of an IV dose is eliminated in urine as unchanged drug by tubular secretion and glomerular filtration.
At the end of a 30 minute intravenous infusion of a single dose of Meropenem for injection (IV) in healthy volunteers, mean peak plasma concentrations of meropenem are approximately 23 ug/mL (range 14-26) for the 500 mg dose and 49 ug/mL (range 39-58) for the 1 g dose. A 5-minute intravenous bolus injection of Meropenem for injection (IV) in healthy volunteers results in mean peak plasma concentrations of approximately 45 ug/mL (range 18-65) for the 500 mg dose and 112 ug/mL (range 83-140) for the 1 g dose. Following intravenous doses of 500 mg, mean plasma concentrations of meropenem usually decline to approximately 1 ug/mL at 6 hours after administration. No accumulation of meropenem in plasma was observed with regimens using 500 mg administered every 8 hours or 1 g administered every 6 hours in healthy volunteers with normal renal function.
来源:Hazardous Substances Data Bank (HSDB)
文献信息
Process for The Preparation of Beta-Lactam Antibiotic
申请人:Surulichamy Senthilkumar
公开号:US20090264643A1
公开(公告)日:2009-10-22
The present invention relates to a process for the preparation of Meropenem of formula (I) in sterile form and also provides an improved process for the preparation of compound of formula (V), which is an important intermediate in the synthesis of Meropenem.
PROCESS FOR THE PREPARATION OF BETA-LACTAM ANTIBIOTIC
申请人:SURULICHAMY Senthilkumar
公开号:US20120095210A1
公开(公告)日:2012-04-19
The present invention provides a novel process for the preparation of the meropenem trihydrate of formula (I).
本发明提供了一种制备化学式(I)的美罗培南三水合物的新工艺。
US8148520B2
申请人:——
公开号:US8148520B2
公开(公告)日:2012-04-03
[EN] AN IMPROVED PROCESS FOR THE PREPARATION OF BETA-LACTAM ANTIBIOTIC<br/>[FR] PROCEDE AMELIORE DE PREPARATION D'UN ANTIBIOTIQUE BETA-LACTAME
申请人:ORCHID CHEMICALS & PHARM LTD
公开号:WO2007031858A2
公开(公告)日:2007-03-22
[EN] The present invention relates to a process for the preparation of Meropenem of formula (I) in sterile form and also provides an improved process for the preparation of compound of formula (V), which is an important intermediate in the synthesis of Meropenem. [FR] La présente invention se rapporte à un procédé permettant de préparer du méropénème représenté par la formule (I) sous forme stérile, et a également trait à un procédé amélioré permettant de préparer un composé représenté par la formule (V), qui est un intermédiaire important dans la synthèse de méropénème.