呋喃西林溶液处方和制备方法的改进及稳定性观察

目的探讨呋喃西林溶液的处方与配制方法,以提高其稳定性。方法按改进的处方组成、配制方法制备呋喃西林溶液,用紫外分光光度法测定呋喃西林的含量,通过留样观察法对呋喃西林溶液进行稳定性实验。结果改进法制备的呋喃西林溶液稳定性较好,能放置6个月以上,且不析出棕红色沉淀或结晶。结论改进后的处方科学,配制方法操作简单、准确,能够很好地控制呋喃西林的质量,切实地解决了临床实际应用中遇到的难题,具有很好的实用价值。     

灭菌时间、温度对呋喃西林溶液含量的影响

目的控制呋喃西林溶液灭菌后含量降低问题。方法采用紫外分光光度法检测,考察不同消毒时间、不同温度下呋喃西林溶液含量的变化,确定合理的消毒时间和温度。结果消毒温度100℃以下,消毒时间15min~30min,对呋喃西林含量无显著性影响;消毒温度100℃~121℃,消毒时间30min~60min,对呋喃西林溶液含量有显著性。结论灭菌温度100℃,灭菌时间30min,及时出锅散热等条件,用紫外分光光度法测定,呋喃西林溶液含量稳定。     

呋喃西林溶液处方和制备方法的改进及其质量控制

目的探讨呋喃西林溶液的处方和制备方法改进及其含量测定方法方法按改进的处方组成，将苯甲酸钠先配制成浓溶液，加入呋喃西林使完全溶解后，再加入其他药物配制。采用高效液相色谱（HPLC）法测定呋喃西林溶液中呋喃西林的含量。结果改进后的处方和配制方法所制备的呋喃西林溶液稳定性好，放置6个月以上不析出沉淀。呋喃西林质量浓度在10．2～101．6mg／L范围内与峰面积线性关系良好（r=0．9999），平均回收率N98．9％，RSD为1．24％。结论改进后的处方科学，配制方法操作简单、准确，具有很好的实用价值。     

呋甲洗剂的制备及质量控制

目的研究呋甲洗剂的制备及质量控制标准。方法采用紫外分光光度法测定呋甲洗剂的含量,并对其进行稳定性试验。结果呋喃西林的平均回收率为99.99%,RSD为0.53%;甲硝唑平均回收率为100.21%,RSD为0.67%。结论该制剂制备工艺简单、质量稳定,质量控制方法操作简便,准确性好,可作为呋甲洗剂的含量测定方法。     

呋喃西林溶液制备方法的改进

呋喃西林溶液收载于《中国医院制剂规范》第二版[1],具有局部抗菌作用,临床广泛用于多种革兰氏阳性及阴性细菌引起的耳、鼻、皮肤疾病的治疗。按照《中国医院制剂规范》(下称《制剂规范》)第二版的方法制备呋喃西林溶液,操作繁琐、费时,不适合于医院大量制备。为此笔者对该制备     

呋喃西林复方霜剂治疗重度冻伤

我们对呋喃西林复方霜剂治疗重度冻伤的效果进行了观察。动物实验结果表明：局部使用呋喃西林复方霜剂可使冻伤组织血管通透性显降低，冻伤组织的活存面积从对照组的１２．０±１．２％提高至６２．０±３．７％；两组差异非常显（Ｐ＜０．００１）。用呋喃西林复方霜剂治疗重度冻伤５例同样收到了良好的效果。     

Effect of nitrofurazone on the reproductive organs in adult male mice

Aim: To study the effect of 5-nitro-2-furaldehyde semicarbazone (nitrofurazone), a derivative of nitrofuran, on male reproductive organs of Parkes (P) strain mice. Methods: Mice were given nitrofurazone orally at a dose of 64mg/kg body weight per day, for 10 and 20 days, and were killed 24 h and/or 56 days after the last treatment. Histological appearance of testis, motility and number of spermatozoa in cauda epididymidis, and biochemical indices in epididymis and seminal vesicle were evaluated. Results: Histologically, testis showed marked regressive changes in the seminiferous tubules in mice treated with nitrofurazone. Ten days after treatment, there was much depletion of germ cells in the seminiferous tubules, and the germinal epithelium was lined mainly with Sertoli cells, spermatogonia, spermatocytes, and a few round spermatids; intraepithelial vacuoles and multinucleated giant cells were also observed in tubules. By 20 days, regressive changes in the seminiferous tubules were further pronounced, and pachytene spennatocytes were the most advanced germ cells noticed in the tubules. In severe cases, the tubules were lined with a thin layer of Sertoli cells and spermatogonia. The treatment also caused marked reductions in the motility and number of spermatozoa in the cauda epididymidis, in weight and the level of fructose in the seminal vesicle, and in sialic acid level in the epididymis. Fifty six days after drug withdrawal, the alterations induced in the reproductive organs returned to control levels. Conclusion: Our results suggest that nitrofurazone treatment in P mice induces marked alterations in the male reproductive organs, and that the alterations are reversible following cessation of treatment.     

呋喃西林粉治疗褥疮的观察

妹哺西林是一类合成抗菌药,作用于微生物酶类系统,抑制乙酸辅酶A,干扰微生物酶类的代谢,起到抑菌的作用,临床上常应用于小面积烧伤、皮炎等,我院在褥疮的应用治疗上取得较好的疗效,现做如下分析报道．l临床资料l．l一般资料56例病人,单纯随机抽样分为2组。治疗组3O例,应用快哺西林粉,对照组26例,用Zop酒和4万"庆大霉素．资料见表1。表中11期为炎症浸润期,表皮有小水泡;Ill期为浅度溃疡期,表及水泡还渐扩穴圾废;'·W'期为孙儿组织后人具ie下层和肌肉层．l．2治疗方法2组病人均应用相同的方法清创后,行疮面用药．治疗组：疮…     

若干呋喃西林类金属络合物的抑菌活性

报道了若干呋喃西林类金属络合物的抑菌活性,数据表明:羰基氧原子换成硫后可使化合物活性所提高。它们与铜(Ⅱ)、锌(Ⅱ)、钴(Ⅱ)、镍(Ⅱ)等形成络合物后可使抑菌活性发生显著变化。