determination of carbamazepine in pharmaceutical formulations

药物制剂中卡马西平的测定

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ID: 200322
2010
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Abstract
The aim of this study was to evaluate the quality of five different solid formulations of carbamazepine. The reference formulation was Tegretol® 200.00 mg (Novartis) and the others were: generic formulation of carbamazepine 200.00 mg (National Industry), similar formulation of carbamazepine 200.00 mg (National Industry), and two formulations of carbamazepine 200.00 mg acquired from two different compounding pharmacies. The latter consisted of capsules obtained in Natal, the capital city of the Brazilian State of Rio Grande do Norte. The quality of samples was evaluated through physical and physical-chemical tests, including: weight, diameter, thickness, content, dissolution, disintegration, hardness, friability and moisture. The results of friability analysis showed that all formulations met Brazilian and United States Pharmacopeia (USP) specifications. In spite of having a higher hardness compared to the reference, the generic formulation had a lower disintegration time. This could be associated to the presence of crospovidone in its formulation. Results of this study showed that all formulations had dissolutions which were in accordance with Brazilian Pharmacopoeia specifications, and quality control tests. An exception was found for the similar formulation, which had a hardness parameter that exceeded the USP standard. However, this difference was not significant given the similar formulation's satisfactory disintegration time.
O objetivo desse trabalho foi avaliar a qualidade de cinco formulações de carbamazepina na dosagem de 200,00 mg: medicamento referência Tegretol® (Novartis), medicamento genérico (indústria nacional), medicamento similar (indústria nacional) e cápsulas do mesmo medicamento obtidas de duas farmácias de manipulação da cidade do Natal, RN. Os ensaios realizados foram: peso médio, diâmetro, espessura, teor, dissolução, desintegração, dureza, friabilidade e umidade. Foi observado que nenhuma das amostras analisadas apresentou friabilidade superior ao limite máximo determinado pela Farmacopéia Americana (1,5%). O medicamento genérico, apesar de apresentar dureza superior em relação ao medicamento de referência, desintegrou em menor tempo, o que pode estar relacionado à crospovidona presente na formulação. As amostras analisadas atenderam às especificações da Farmacopéia Brasileira no que diz respeito à dissolução. Em geral, os resultados das amostras A, B, C, D e E foram considerados satisfatórios uma vez que atenderam as especificações farmacopéicas. Embora a apresentação similar não tenha atendido ao padrão USP no que diz respeito à dureza, esse dado não se mostrou significativo, uma vez que o tempo de desintegração foi satisfatório.
本研究旨在评估五种不同卡马西平固体剂型的质量。参比制剂为得理多®(Tegretol®)200.00 mg(诺华制药),其余制剂分别为:卡马西平仿制制剂 200.00 mg(本国药企)、卡马西平类似制剂 200.00 mg(本国药企),以及从两家不同配制药房获取的两种卡马西平 200.00 mg 制剂。后者为从巴西北里奥格兰德州首府纳塔尔市获取的胶囊剂。通过物理和物理化学检验评估样品质量,检测项目包括:重量、直径、厚度、含量、溶出度、崩解度、硬度、脆碎度和水分。脆碎度分析结果表明,所有制剂均符合巴西药典和美国药典(USP)标准。尽管仿制制剂的硬度高于参比制剂,但其崩解时间更短,这可能与其处方中含有交联聚维酮有关。本研究结果表明,所有制剂的溶出度均符合巴西药典标准及质量控制检验要求。唯有类似制剂例外,其硬度参数超出了USP标准。然而,鉴于该类似制剂的崩解时间令人满意,该差异并无显著影响。
本研究旨在评估五种剂量为 200.00 mg 的卡马西平制剂的质量:参比药物得理多®(诺华制药)、仿制药(本国药企)、类似药(本国药企),以及购自北里奥格兰德州纳塔尔市两家配制药房的同种药物胶囊剂。所进行的检验包括:平均片重、直径、厚度、含量、溶出度、崩解度、硬度、脆碎度和水分。观察发现,所有分析样品的脆碎度均未超过美国药典规定的上限(1.5%)。仿制药虽然硬度高于参比药物,但崩解时间更短,这可能与处方中的交联聚维酮有关。在溶出度方面,所分析的样品均符合巴西药典的规范。总体而言,样品 A、B、C、D 和 E 的结果均令人满意,符合药典规范。尽管类似药在硬度方面未达到 USP 标准,但鉴于其崩解时间合格,该项差异并未表现出显著意义。
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solon2010braziliandetermination Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Lílian Grace da Silva Solon;Ana Isabel Maia de Oliveira;Gerlane Coelho Bernardo Guerra;Luiz Alberto Lira Soares;Aurigena Antunes de Araújo
Journal electronic engineering times
Year 2010
DOI
10.1590/S1984-82502010000300014
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