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Development and validation of a new HPLC method for the analysis of a novel oral suspension formulation of 50 mg/ml ursodeoxycholic acid for newborns 新型新生儿熊去氧胆酸口服混悬液50mg /ml HPLC分析方法的建立与验证
Pub Date : 2020-01-01 DOI: 10.1515/pthp-2020-0006
A. Hausherr, Clara Roessle, Emma Pinet, V. Vasseur, T. Abarou, Samira Benakouche, O. Bourdon, T. Storme
Abstract Objectives Drugs are developed for adults, making it difficult to find suitable treatments for children. Hospital pharmacy has developed alternatives to respond to this medical need. The objective of this study is to present a new liquid formulation of ursodeoxycholic acid (UDCA) at a concentration suitable for treatment of neonatal jaundice, and to introduce a novel high pressure liquid chromatography (HPLC) assay method. Methods Four formulations have been developed using suspension vehicles due to the low solubility of the active ingredient, and different concentrations of excipient, xanthan gum, needed to facilitate resuspension. An HPLC method coupled to a diode array detector (DAD) has been developed. This method was used to analyze chemical and microbiologic stabilities, as well as physicochemical properties and palatability. Results After formulation was chosen, our new HPLC method assay was developed and validated for the quantification of chemical and microbiological stabilities of our product. Both parameters were stable over three months. Palatability has been improved thanks to the addition of universal suspension adjuvants. Odor, appearance and taste were judged pleasant despite a bitter aftertaste, with a persistence of the UDCA resuspension after one month. Conclusions Three months after informing neonatal department about the availability of the drug, patients and caregivers are satisfied, and production campaigns are routinely planned.
摘要目的药物是为成人开发的,因此很难找到适合儿童的治疗方法。医院药房已开发出应对这一医疗需求的替代方案。本研究的目的是提出一种适合治疗新生儿黄疸浓度的熊去氧胆酸(UDCA)的新液体配方,并介绍一种新的高压液相色谱(HPLC)测定方法。方法利用悬浮液对活性成分溶解度较低的特点,采用不同浓度的辅料黄原胶进行再悬浮,制备了四种配方。建立了一种耦合二极管阵列检测器(DAD)的高效液相色谱法。该方法用于分析其化学和微生物稳定性,以及理化性质和适口性。结果选定制剂后,建立了高效液相色谱法测定制剂的化学稳定性和微生物稳定性。这两个参数在三个月内都是稳定的。由于添加了通用悬浮佐剂,适口性得到了改善。尽管回味苦涩,但气味、外观和味道都是令人愉快的,UDCA在一个月后持续复苏。结论在告知新生儿科该药的可得性3个月后,患者和护理人员对该药的可得性感到满意,并常规计划生产活动。
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引用次数: 1
Measurement, analysis and prediction of amoxicillin oral dose stability from integrated molecular description approach and accelerated predictive stability (APS) 基于综合分子描述法和加速预测稳定性(APS)的阿莫西林口服剂量稳定性测量、分析和预测
Pub Date : 2020-01-01 DOI: 10.1515/pthp-2020-0009
C. Merienne, C. Marchand, S. Filali, D. Salmon, C. Pivot, F. Pirot
Abstract Background Stability of low amoxicillin oral dosage form (5 mg) used in reintroduction drug test was not fully documented. Furthermore, the impact of (1) salt moiety of amoxicillin and (2) amoxicillin – excipient interactions upon the antibiotic formulation stability during the storage was not characterized so that the estimation of the pharmaceutical expiration date from shelf-life was uncertain. Thus, the main goal of this study was to estimate the shelf-life of two formulations of amoxicillin, using a semi-predictive methodology. Methods Amoxicillin sodium (AS) and amoxicillin trihydrate (ATH), corresponding to 5-mg amoxicillin, were compounded with microcrystalline cellulose (MCC) in oral hard capsules which were, then, submitted to four environmental conditions (25 °C / 60% or 80% relative humidity (RH); 40 °C / 75% RH; 60 °C / 5% RH) in climatic chambers for 45 and 84 days. Therefore, the characterization of amoxicillin-MCC mixture was assessed by attenuated total reflectance Fourier-transform infrared spectroscopy (ATR-FTIR) The profiles of amoxicillin content (determined by stability indicating chromatographic method) as a function of storage time, temperature and RH were fitted to pre-defined kinetic models performed by accelerated predictive stability (APS). Results ATR-FTIR analysis of AS, ATH, MCC and bulk specimens stored in heated and humid atmosphere confirmed water sorption to cellulose described by a broad and unresolved 3600 to 3000 cm−1 band associated with (1) general intramolecular and intermolecular hydrogen bonding between water and hydroxyl groups of the cellulose, and with (2) free hydroxyl in cellulose. Moreover, a dramatic decrease of absorption at 1776 and 1687 cm−1 respectively characteristic of the β-lactam ring (ν C=O) and amide group (ν C=O), was revealed as a consequence of AS and ATH degradation caused by moisturization of bulk. Amoxicillin degradation was established by chromatographic analysis showing faster AS degradation than ATH throughout time exposure. The combined effects of temperature – RH were successfully modeled by APS, where AS and ATH showed accelerated (auto-catalysis degradation mechanism) and linear degradation, respectively. The faster AS degradation was assumed to be linked to lower hydrogen donor to hydrogen acceptor count ratio and polar surface than ATH, increasing the probability of AS hydrolysis by water adsorption to AS-MCC solid dispersion (e.g., by reduction of protective intramolecular hydrogen bonds between AS molecules). Furthermore, the compounding which involved a drastic homogenization of solids may have affected the crystalline degree of MCC with an increase of amorphous phase more sensitive to water adsorption. Conclusions The improvement of amoxicillin compounding for oral dose forms might be rationalized by taking into account the molecular descriptors of salt moiety and excipients, improved by the choice of an appropriate process of production, characterized from in
背景:用于再引入药物试验的低剂量阿莫西林口服剂型(5mg)的稳定性没有完整的文献记录。此外,(1)阿莫西林盐部分和(2)阿莫西林-赋形剂相互作用对抗生素储存过程中处方稳定性的影响尚未表征,因此药物保质期的估计是不确定的。因此,本研究的主要目的是估计阿莫西林的两种配方的保质期,使用半预测方法。方法将阿莫西林钠(AS)和阿莫西林三水合阿莫西林(ATH)分别与微晶纤维素(MCC)配制成5 mg阿莫西林口服硬胶囊,分别置于25°C / 60%和80%相对湿度(RH)条件下;40°c / 75% rh;60°C / 5% RH),在气候室中放置45天和84天。因此,采用衰减全反射傅里叶变换红外光谱(ATR-FTIR)对阿莫西林- mcc混合物的表征进行了评估。阿莫西林含量(通过稳定性指示色谱法测定)随储存时间、温度和RH的函数曲线拟合到由加速预测稳定性(APS)建立的预定义动力学模型中。结果对AS、ATH、MCC和储存在加热和潮湿气氛中的大块样品的ATR-FTIR分析证实了纤维素对水的吸附作用,该吸附作用描述为3600 ~ 3000 cm−1的宽且未解析的条带,该条带与(1)纤维素中水和羟基之间的一般分子内和分子间氢键以及(2)纤维素中的游离羟基有关。此外,在1776和1687 cm−1处,β-内酰胺环(ν C=O)和酰胺基团(ν C=O)的吸收急剧下降,这是由于体的湿润作用导致as和ATH降解的结果。通过色谱分析确定阿莫西林的降解,在整个暴露时间内,AS的降解速度比ATH快。通过APS成功模拟了温度- RH的联合效应,其中AS和ATH分别表现为加速降解(自催化降解机制)和线性降解。AS更快的降解被认为与比ATH更低的氢供体与氢受体计数比和极性表面有关,增加了AS被水吸附到AS- mcc固体分散(例如,通过减少AS分子之间的保护性分子内氢键)水解的可能性。此外,复合过程中固体的均匀化可能会影响MCC的结晶度,增加对水吸附更敏感的非晶相。结论阿莫西林口服剂型的改进可通过考虑盐段和赋形剂的分子描述符,选择合适的生产工艺加以改进,并通过红外振动光谱和色谱分析进行表征,最后通过加速稳定性试验进行预测。
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引用次数: 2
GERPAC Consensus Conference – Guidance on the Assignment of Microbiological Shelf-life for Hospital Pharmacy Aseptic Preparations GERPAC共识会议-医院药房无菌制剂微生物货架期分配指南
Pub Date : 2020-01-01 DOI: 10.1515/pthp-2020-0001
S. Crauste-Manciet, I. Krämer, F. Lagarce, V. Sautou, A. Beaney, Julian Smith, V’Iain Fenton-May, J. Hecq, F. Sadeghipour, P. L. Brun
Abstract All dosage forms prepared in hospital pharmacies should be labelled with an appropriate shelf-life. This shelf-life should be validated taking chemical, physical and microbiological data into consideration. This guidance focuses on parenteral aseptically prepared products, as they are high-risk preparations. The risk is exacerbated by a requirement for longer shelf lives for reasons of economy and efficiency. The scope of this guidance includes individual patient preparations, preparations prepared in series (same type of preparation being repeatedly prepared) and batch preparations prepared from the same initial bulk admixture.
医院药房配制的所有剂型均应标明适当的保质期。该保质期应考虑化学、物理和微生物数据进行验证。本指南的重点是无菌制剂,因为它们是高风险制剂。由于经济和效率的原因,对更长的保质期的要求加剧了风险。本指南的范围包括单个患者制剂、系列制剂(重复制备同一类型制剂)和由相同初始散装外加剂制备的批量制剂。
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引用次数: 11
Carbidopa Capsules for Insulinoma Diagnostic: Compounding and Stability Study 卡比多巴胶囊用于胰岛素瘤诊断:复方及稳定性研究
Pub Date : 2019-09-01 DOI: 10.1515/pthp-2019-0013
C. Curti, F. Mathias, Morane Savelli, P. Garrigue, E. Lamy, B. Guillet, P. Vanelle
Abstract Background Carbidopa is a drug mainly used to treat Parkinson’s disease. Associations with levodopa or with levodopa/entacapone are commercialized, but there is no oral formulation of carbidopa alone available in Europe. As carbidopa can also be used as premedication of adult patients for insulinoma diagnosis, it must be compounded as single dose mg capsules. The single dose administration of a magistral preparation implies the compounding of only one capsule, or the loss of consequent quantities of active pharmaceutical ingredient. As an alternative solution, carbidopa capsules could be compounded as batches of hospital preparation. Method With this objective, a stability-indicating dosing method for 200 mg carbidopa capsules was developed. Then, the compounding process was assessed according to the European Pharmacopeia requirements. Finally, the stability of carbidopa capsules stored protected from light at room temperature was studied for one year. Results 200 mg carbidopa capsules compounding process was validated on three independent batches. The beyond use date was fixed at one year. Conclusion Our work confirms that carbidopa 200 mg capsules can be realized in hospital pharmacy and its stability allows the compounding of large batches.
摘要背景卡比多巴是一种主要用于治疗帕金森病的药物。与左旋多巴或与左旋多巴/恩他卡彭的关联已商品化,但在欧洲没有单独的卡比多巴的口服制剂。由于卡比多巴也可作为成人患者胰岛素瘤诊断的前用药,因此必须单剂量mg胶囊复合使用。原药制剂的单剂量施用意味着仅复合一粒胶囊,或相应数量的活性药物成分的损失。作为替代溶液,卡比多巴胶囊可分批配制成医院制剂。方法建立卡比多巴胶囊200mg的稳定性指示给药方法。然后,按照欧洲药典要求对配制工艺进行评价。最后,对卡比多巴胶囊在室温下避光保存一年的稳定性进行了研究。结果对200 mg卡比多巴胶囊的配制工艺进行了3批独立验证。超期使用期定为一年。结论卡比多巴200 mg胶囊可在医院药房实现,稳定性好,可批量配制。
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引用次数: 1
Surface Contamination by Antineoplastics in Hospitals: An Observational Study for Mapping of Potential Contamination Associated with Handling Excreta of Babies through Diaper Management 医院抗肿瘤表面污染:通过尿布管理处理婴儿排泄物相关潜在污染的观察研究
Pub Date : 2019-09-01 DOI: 10.1515/pthp-2019-0019
Marie Palamini, G. Mercier, J. Bussières
Abstract Background In the hospital setting, trace contamination with hazardous medications comes primarily from the manipulation of containers used in preparing and administering drugs. However, some traces of medications also come from the excreta of patients. Methods This descriptive exploratory study involved direct observation and discussion. The aim was to map potential contamination associated with handling babies’ excreta through diaper management. The study was conducted at CHU Sainte Justine (Montréal, Québec, Canada), a 500-bed mother and child facility with 38 beds for hematology-oncology and bone marrow transplant. A list of key steps related to the management of diapers by a parent or caregiver on a pediatric unit was established by the investigators. A data collection grid was then developed and reviewed by a member of the research team. Results A total of six diaper changes, by six distinct individuals, were observed in August and September 2019. Transport of a soiled diaper for weighing outside the baby’s room by an additional caregiver was also observed and recorded. In total, 25 individual steps in diaper management and 28 potential failure modes were identified through mapping. Conclusions Changing a baby’s diaper involves many individual steps, which are subject to numerous failure modes that can contribute to contamination with traces of hazardous drugs. A good understanding of these process steps and failure modes is desirable to better train caregivers and parents to reduce trace contamination with hazardous drugs.
背景在医院环境中,危险药物的痕量污染主要来自于制备和给药时使用的容器的操作。然而,一些药物的痕迹也来自患者的排泄物。方法采用直接观察和讨论的描述性探索性研究方法。其目的是通过尿布管理来绘制与处理婴儿排泄物有关的潜在污染。这项研究是在CHU Sainte Justine(加拿大qutracimbec的montracimal)进行的,这是一家拥有500张床位的母婴机构,其中有38张床位用于血液学肿瘤学和骨髓移植。调查人员建立了一份与儿科单位的父母或照顾者管理尿布相关的关键步骤清单。然后,研究小组的一名成员开发并审查了一个数据收集网格。结果2019年8月和9月共观察到6名不同个体的6次尿布更换。还观察并记录了由另一名护理人员将脏尿布送到婴儿房间外称重的情况。通过映射,共确定了纸尿裤管理的25个单独步骤和28个潜在的失效模式。更换婴儿纸尿裤涉及许多单独的步骤,这些步骤受到许多失败模式的影响,可能导致痕量有害药物的污染。很好地理解这些工艺步骤和失效模式是为了更好地培训护理人员和家长减少有害药物的痕量污染。
{"title":"Surface Contamination by Antineoplastics in Hospitals: An Observational Study for Mapping of Potential Contamination Associated with Handling Excreta of Babies through Diaper Management","authors":"Marie Palamini, G. Mercier, J. Bussières","doi":"10.1515/pthp-2019-0019","DOIUrl":"https://doi.org/10.1515/pthp-2019-0019","url":null,"abstract":"Abstract Background In the hospital setting, trace contamination with hazardous medications comes primarily from the manipulation of containers used in preparing and administering drugs. However, some traces of medications also come from the excreta of patients. Methods This descriptive exploratory study involved direct observation and discussion. The aim was to map potential contamination associated with handling babies’ excreta through diaper management. The study was conducted at CHU Sainte Justine (Montréal, Québec, Canada), a 500-bed mother and child facility with 38 beds for hematology-oncology and bone marrow transplant. A list of key steps related to the management of diapers by a parent or caregiver on a pediatric unit was established by the investigators. A data collection grid was then developed and reviewed by a member of the research team. Results A total of six diaper changes, by six distinct individuals, were observed in August and September 2019. Transport of a soiled diaper for weighing outside the baby’s room by an additional caregiver was also observed and recorded. In total, 25 individual steps in diaper management and 28 potential failure modes were identified through mapping. Conclusions Changing a baby’s diaper involves many individual steps, which are subject to numerous failure modes that can contribute to contamination with traces of hazardous drugs. A good understanding of these process steps and failure modes is desirable to better train caregivers and parents to reduce trace contamination with hazardous drugs.","PeriodicalId":19802,"journal":{"name":"Pharmaceutical Technology in Hospital Pharmacy","volume":"14 1","pages":"119 - 125"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79897845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Controlling Risks in the Compounding Process of Individually Formulated Parenteral Nutrition: Use of the FMECA Method (Failure modes, effects, and Criticality Analysis) 单独配制肠外营养配制过程中的风险控制:FMECA方法的应用(失效模式、影响及临界分析)
Pub Date : 2019-09-01 DOI: 10.1515/pthp-2019-0020
Mathilde Royer, Maïté Libessart, Jean-Marc Dubaele, P. Tourneux, F. Marçon
Abstract Parenteral nutrition (PN) in the neonatal intensive care unit (NICU) involves a succession of risky processes. The objective was to identify and prioritize the risks associated with PN in order to improve the quality of the pathway. A failure modes, effects, and criticality analysis (FMECA) was used to identify potential PN pathway failure modes. A multidisciplinary working group conducted a functional analysis of the processes, then listed the failure modes (FM). The FM criticality was assessed on a scale from 1 to 5 for occurrence (O), severity (S), and detection (D). The risk priority number (RPN), ranging from 1 to 125, was calculated. The FMECA identified 99 FM (prescription (n=28), preparation (n=48), and administration (n=23)). The median RPN was 12, with scores ranging from 3 to 48. 25 % of the scores had an RPN>21.75. Among them, 12 were associated with prescription FM, 5 were associated with FM related to preparation and 8 were associated with a FM linked to administration. It allowed us to prioritize areas of potential quality improvement for parenteral nutrition of the preterm infant. The results demonstrated the need for the presence of a clinical pharmacist in the NICU to ensure the quality of PN process.
新生儿重症监护病房(NICU)的肠外营养(PN)涉及一系列危险过程。目的是识别和优先考虑与PN相关的风险,以提高通路的质量。失效模式、影响和临界性分析(FMECA)用于识别潜在的PN通路失效模式。一个多学科工作组对这些过程进行了功能分析,然后列出了失效模式(FM)。根据发生(O)、严重(S)和检测(D)从1到5的等级对FM的临界性进行评估。计算风险优先级数(RPN),范围从1到125。FMECA鉴定出99种FM(处方(n=28)、制剂(n=48)和给药(n=23))。RPN中位数为12,评分范围从3到48。25%的患者RPN>21.75。其中12个与处方性调频相关,5个与制剂相关,8个与给药相关。它使我们能够优先考虑可能改善早产儿肠外营养质量的领域。结果表明,需要临床药师在新生儿重症监护病房的存在,以确保质量的PN过程。
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引用次数: 7
Automated Compounding of Intravenous Therapy in European Countries: A Review in 2019 欧洲国家静脉注射药物的自动合成:2019年回顾
Pub Date : 2019-06-01 DOI: 10.1515/pthp-2019-0008
L. Soumoy, J. Hecq
Abstract Automated compounding systems appeared on the market during these last 15 years as an alternative for manual compounding of intravenous (IVD) drugs. A literature review was conducted on reconstitution of IVD. The following methods were identified: manual, semi- automatic and automatic. A classification was carried out in three categories: automatic syringes, peristaltic pumps, and compounding doses robots. The number of compounding robots is increasing. A table describes the different features of each device. The ampuls cannot be supported by these robots. Large doses vials improve the time of reconstitution compared to current dosage vials. Advantages of automated preparation are: higher consistency of process and products, higher accuracy of products, Integrated digitized processing, precise, complete documentation, reduced effort and wrist injuries, reduced personnel requirement, increased worker satisfaction. Disadvantages of automated preparation are: risk of failure/down time, dependency on power supply, software (updates), high investment costs/high maintenance costs, specialized personnel with additional training, decreased worker satisfaction (early adopter), complexity when products are switched or added, potential for new errors. This review allows the potential user to know the current availability on the market.
在过去的15年里,自动配药系统作为人工静脉注射药物的替代方案出现在市场上。对IVD的重建进行了文献综述。确定了以下几种方法:手动、半自动和自动。对自动注射器、蠕动泵和复合给药机器人进行了分类。复合机器人的数量正在增加。表格描述了每个设备的不同特性。这些机器人无法支撑壶体。与目前的剂量瓶相比,大剂量瓶改善了重构时间。自动化制备的优点是:工艺和产品的一致性更高,产品的精度更高,集成数字化处理,精确,完整的文件,减少了工作量和手腕伤害,减少了人员需求,提高了工人满意度。自动化准备的缺点是:故障/停机时间的风险,对电源的依赖,软件(更新),高投资成本/高维护成本,需要额外培训的专业人员,降低工人满意度(早期采用者),切换或添加产品时的复杂性,潜在的新错误。这种审查允许潜在用户了解市场上当前的可用性。
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引用次数: 8
Emulsion Stability of Different Intravenous Propofol Formulations in Simulated Co-Administration with Remifentanil Hydrochloride 不同静脉异丙酚制剂与盐酸瑞芬太尼模拟共给药的乳状液稳定性
Pub Date : 2019-06-01 DOI: 10.1515/pthp-2019-0014
N. Nilsson, K. Nezvalova-Henriksen, I. Tho
Abstract Background Propofol and remifentanil often need to be co-administered via the same intravenous catheter line, which predisposes to potential compatibility issues. Our aim was to determine and compare the emulsion stability of three propofol formulations, two with medium chain triglycerides and one with long chain triglycerides, when administered together with remifentanil hydrochloride. Methods Remifentanil hydrochloride (Ultiva®) 50 µg/mL was mixed with two concentrations (10 and 20 mg/mL) of each propofol formulation in mixing ratios 10+1, 20+1, 1+1 and 1+20. Emulsion stability was assessed immediately after mixing and 4 hours later by measurements of pH, mean droplet diameter, polydispersity index, and calculating percentage of fat residing in globules>5 µm (PFAT5). Results High PFAT5 values were observed in certain mixing ratios. The correlation between elevated PFAT5 and high propofol concentration (20 mg/mL), when remifentanil was in abundance and for long contact time indicated that these factors influenced the stability of the propofol emulsions. Conclusions Stability differences between the propofol formulations were identified under extreme test conditions. Co-administration of remifentanil and propofol in the same i.v. line is safe when propofol is in abundance. Caution is advised when remifentanil is present in equal parts or in abundance when co-administered with propofol 20 mg/mL.
背景异丙酚和瑞芬太尼通常需要通过同一静脉导管共同给药,这容易产生潜在的相容性问题。我们的目的是确定和比较三种异丙酚制剂,两种中链甘油三酯和一种长链甘油三酯,与盐酸瑞芬太尼一起给药时的乳液稳定性。方法将盐酸瑞芬太尼(Ultiva®)50µg/mL与各异丙酚制剂10、20 mg/mL配制成10+1、20+1、1+1、1+20的混合比例。在混合后立即和4小时后,通过测量pH、平均液滴直径、多分散性指数和计算>5µm的小球中脂肪的百分比(PFAT5)来评估乳液的稳定性。结果在一定的混合比例下,PFAT5值较高。高异丙酚浓度(20 mg/mL)、瑞芬太尼丰富和长时间接触时PFAT5升高的相关性表明,这些因素影响异丙酚乳剂的稳定性。结论在极端条件下确定了不同丙泊酚制剂的稳定性差异。在异丙酚大量的情况下,瑞芬太尼和异丙酚同时静脉注射是安全的。当瑞芬太尼与异丙酚(20mg /mL)同时使用时,应慎用。
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引用次数: 6
Stability Study of 0.5 g/mL Urea Oral Solution in InOrpha® 0.5 g/mL尿素口服液在InOrpha®中的稳定性研究
Pub Date : 2019-06-01 DOI: 10.1515/pthp-2019-0015
J. Bourbon, A. Dory, L. Perello, Laure Belotti, F. Reisz, G. Ubeaud‐Séquier, B. Gourieux
Abstract Background Urea is recommended in the 2nd line treatment in moderate to severe hyponatraemia induced by syndrome of inappropriate antidiuretic hormone secretion (SIADH), when water restriction is insufficient. A posology of 0.25–0.5 g/kg daily is suggested. A usual but inadequate urea oral preparation, i. e. 10 g urea powder dissolved in 100 mL water before use, was classically compounded. Therefore the pharmacy has developed a 0.5 g/mL urea oral liquid solution in InOrpha® with better organoleptic characteristics to improve treatment adherence and reduce the preparation time. The aim of this study was to determine physicochemical and microbiological stability of the urea oral liquid solution in order to establish a shelf life of the preparation. Methods The 0.5 g/mL urea solution was compounded using urea powder in a commercial suspending vehicle: Inorpha®. A validated high-performance liquid chromatographic (HPLC) method with UV detection was performed for the assay of urea. The preparations were packaged in amber glass bottles and stored at fridge (5 °C±3 °C) or at room temperature (24 °C±1 °C). The physicochemical (urea concentration, macroscopic change) and microbiological stability of the preparation was tested over 90 days. Urea concentration measurement at day 0 was considered as the reference value (100 % stability) and urea concentration in subsequent samples greater than 90 % were definite stable without macroscopic changes. Results The developed HPLC-UV method was validated in terms of linearity, specificity, accuracy and fidelity (less than 5 % for relative standard deviation and relative error). After 90 days, no microbial growth was noted and urea concentrations were always higher than 90 % of the initial concentration. Macroscopic changes were observed for the samples stored at fridge (5 °C+/− 3 °C) with massive crystallization of urea solution. Conclusions Although, all the preparations retain more than 95 % of the initial concentration after 90 days in all storage conditions, macroscopic change and pH change (more than 1 unit after 15 days at room temperature) have to be taken into account. The 0.5 g/mL urea oral liquid solution in InOrpha® remains stable for 15 days at room temperature (24 °C±1 °C) in amber glass bottles.
背景尿素被推荐用于中重度低钠血症的二线治疗,这些低钠血症是由不适当的抗利尿激素分泌综合征(SIADH)引起的,当限水不足时。建议每天0.25-0.5 g/kg。一种常用但不充分的尿素口服制剂,如:使用前将10克尿素粉末溶于100毫升水中,经经典配制。因此,该药房在InOrpha®中开发了一种具有更好感官特性的0.5 g/mL尿素口服液溶液,以提高治疗依从性,缩短制备时间。本研究的目的是确定尿素口服液溶液的物理化学和微生物稳定性,以确定制剂的保质期。方法将0.5 g/mL尿素溶液用尿素粉在Inorpha®商用悬浮液中复配。建立了高效液相色谱紫外检测法测定尿素的方法。用琥珀色玻璃瓶包装,冷藏(5°C±3°C)或室温(24°C±1°C)。在90 d的时间里,测试了该制剂的理化性质(尿素浓度、宏观变化)和微生物稳定性。以第0天尿素浓度测量值为参考值(100%稳定),后续样品尿素浓度大于90%时确定稳定,无宏观变化。结果所建立的HPLC-UV方法具有良好的线性度、特异性、准确度和保真度(相对标准偏差和相对误差均小于5%)。90 d后,微生物未见生长,尿素浓度始终高于初始浓度的90%。在冰箱(5°C+/−3°C)中,尿素溶液大量结晶,观察了样品的宏观变化。结论所有制剂在各种贮存条件下,90天后均保持95%以上的初始浓度,但需考虑宏观变化和pH变化(室温下15天后大于1单位)。0.5 g/mL的InOrpha®尿素口服液在室温下(24°C±1°C)在琥珀色玻璃瓶中保持稳定15天。
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引用次数: 0
The Art of Compounding in Hospital Pharmacy 医院药房的配药艺术
Pub Date : 2019-06-01 DOI: 10.1515/pthp-2019-2011
F. Lagarce
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Pharmaceutical Technology in Hospital Pharmacy
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