首页> 外文期刊>Journal of the Brazilian Chemical Society >Implementation of a Spectrofluorimetric Method to the Determination of 8-Methoxypsoralen in Capsules and Creams Used in Treatment of Psoriasis and Vitiligo: an Evaluation of the Quality of Compounding Pharmacies in Rio de Janeiro
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Implementation of a Spectrofluorimetric Method to the Determination of 8-Methoxypsoralen in Capsules and Creams Used in Treatment of Psoriasis and Vitiligo: an Evaluation of the Quality of Compounding Pharmacies in Rio de Janeiro

机译:分光荧光法测定牛皮癣和白癜风中使用的胶囊和乳膏中的8-甲氧基补骨脂素的方法的实施:对里约热内卢复方药房的质量评估

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>8-Methoxypsoralen is a widely sold drug in Brazil as handled capsules and creams because it is only industrially available as soft gel capsules of 10 mg. In order to contribute to the quality control of these pharmaceutical forms, a spectrofluorimetric method was implemented and applied for the evaluation of the quality of compounding pharmacies in the state of Rio de Janeiro (Brazil). Solutions of 8-methoxypsoralen prepared in ethanol/water (30:70 v/v) produced fluorescence signals at excitation/emission wavelengths of 305/495 nm. The method presented good precision (relative standard deviation, RSD 4.8%) and recoveries in the pharmaceutical samples from 88.5-108% indicated its feasibility. The results of assay (dosing) and uniformity of content suggested that two of the three evaluated pharmacies did not have appropriate techniques in the preparation of these formulations, which could potentially reduce the efficiency of dermatoses treatment. The implemented method is an alternative to those described in literature for pharmaceutical forms containing 8-methoxypsoralen.
机译:> 8-甲氧基补骨脂素是在巴西广泛销售的经处理的胶囊和乳膏剂,因为它在工业上仅以10毫克的软胶囊剂形式获得。为了有助于这些药物形式的质量控制,在里约热内卢州(巴西)实施了荧光分光光度法并将其用于评估混合药房的质量。在乙醇/水(30:70 v / v)中制备的8-甲氧基补骨脂素溶液在激发/发射波长为305/495 nm时产生荧光信号。该方法具有良好的精密度(相对标准偏差,RSD <4.8%),药物样品中的回收率为88.5-108%,表明了该方法的可行性。测定(剂量)和含量均匀性的结果表明,三个被评估的药店中有两个在制备这些制剂时没有适当的技术,这可能会降低皮肤病治疗的效率。对于包含8-甲氧基补骨脂素的药物形式,所实施的方法是文献中所描述的方法的替代方法。

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