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建立吡喹酮混悬注射液的质量标准,为其质量控制提供依据。采用紫外光谱扫描法和高效液相色谱法对吡喹酮混悬注射液进行鉴别。吡喹酮混悬注射液的粒度、分散性、装量、无菌等检查项目按照2010年版《中国兽药典》进行。采用HPLC法测定吡喹酮混悬注射液中吡喹酮含量。结果表明,吡喹酮混悬注射液的各项检查指标均符合国家相关质量要求。建立的含量测定方法简便、可靠、灵敏、重复性好,平均回收率为99.24%,RSD为0.77%,吡喹酮混悬注射液中吡喹酮含量为标示量的99.8%~100.5%。结果表明,吡喹酮混悬注射液质量可靠,质控方法可行。 相似文献
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本试验旨在建立吡喹酮注射液中吡喹酮含量的测定方法,并考察其稳定性。采用高效液相色谱(HPLC)法测定吡喹酮注射液中吡喹酮含量。色谱条件:Diamonsil C18柱(150 mm×4.6 mm,5μm),柱温25℃,流动相为乙腈-水(60:40),流速1.0 mL/min,检测波长210 nm,进样量20μL。通过影响因素试验、加速试验及长期稳定性试验考察吡喹酮注射液的稳定性。吡喹酮在6.037~90.555μg/mL范围内与峰面积呈良好的线性关系(R2=0.9993),平均加样回收率为99.24%,RSD为0.77%,吡喹酮注射液的平均含量为标示量的100.3%。在影响因素试验10 d后吡喹酮注射液对高温(60℃)稳定,但对强光照射(4500 lx±500 lx)有一定的敏感性。在加速试验6个月及长期稳定性试验24个月后,吡喹酮注射液的性状、含量等指标均无明显变化。试验结果表明,所建立的含量测定方法简便、可靠、灵敏、重复性好,可用于吡喹酮注射液的质量控制;吡喹酮注射液在室温、避光条件下存放稳定,有效期暂定为2年。 相似文献
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研制复方吡喹酮纳米乳并对其质量、安全性进行评价.将吡喹酮和芬苯达唑以一定的比例与选取的油相、表面活性剂、助表面活性剂混合制成复方纳米乳,用激光粒度分析仪测纳米乳的粒径,在不同温度、不同时间下放置观察和以4 000 r/min,离心30 min试验,检测复方吡喹酮纳米乳的稳定性.通过经口急性毒性试验对复方吡喹酮纳米乳进行安全性评价.复方吡喹酮纳米乳的最佳配方是吡喹酮12.0g,芬苯达唑0.4g,乙酸乙酯119.8 g,N,N-二甲基乙酰胺53.9g,乙醇291.7 g,冰醋酸28.3g,吐温-80为230.2 g,二甲基亚砜199.7 g和蒸馏水64.0g组成,总组分为1 000 g;所研制的复方吡喹酮纳米乳澄清透明,稳定性良好;测出的平均粒径为11.2 nm,粒径小于9nm＜15％,大于20 nm＜2.5％,9 nm～20 nm约占82.5％.复方吡喹酮纳米乳LD50为649.01 mg/kg,LD50的95％可信限为560.09mg/kg～752.04mg/kg,复方吡喹酮纳米乳研制成功,属于低毒药物. 相似文献
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应用全身过敏性、皮肤刺激性、黏膜刺激性和乳腺刺激性试验,评定了利福昔明混悬乳剂的安全性。结果表明,致敏试验豚鼠均未出现过敏性反应。在皮肤刺激性试验中,单次敷药组家兔皮肤均未见异常变化,多次敷药组虽有1只试验兔皮肤出现了短暂性轻微红斑,但皮肤刺激反应积分平均值仅为0.2。在黏膜刺激性试验中,受试药物组有1只试验兔的阴道黏膜出现轻微的充血现象,阴道黏膜刺激反应积分平均值为0.2。乳腺刺激性试验羊乳房未见异常症状,乳腺组织未见充血、水肿和白细胞浸润等病理变化。综合评价试验结果表明,利福昔明混悬乳剂是一种安全性良好的制剂。 相似文献
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氟苯尼考混悬注射液的研制及含量测定 总被引：2，自引：0，他引：2
以氟苯尼考为主药,采用正交试验筛选配方,分散法制备氟苯尼考混悬注射液,HPLCUV法测定氟苯尼考的含量。质量评价试验表明,该混悬注射液符合药剂学中规定的混悬剂的要求,具有通针性好、不结块、易重分散、刺激性小的特点,易于注射给药。 相似文献
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[目的]观察吡喹酮片剂、阿苯达唑干混悬剂对高原型牦牛多头蚴病的治疗效果,确定最佳剂量和用药次数。[方法]应用吡喹酮片剂按35、70 mg/kg剂量口服、阿苯达唑干混悬剂按25、50 mg/kg剂量口服治疗牦牛多头蚴病。[结果]吡喹酮片剂两个剂量的治愈率分别为72.73%和91.67%;阿苯达唑干混悬剂两个剂量的治愈率分别为81.82%和83.33%。从吡喹酮片剂35 mg/kg的剂量组死亡的2头牛检出多头蚴8个,平均感染强度2.67个;从阿苯达唑干混悬剂25 mg/kg的剂量组死亡的1头牛检出脑多头蚴2.0个,平均感染强度2个。从阳性对照组死亡的10头牛检出脑多头蚴37个,平均感染强度3.7个。[结论]吡喹酮片剂70mg/kg剂量间隔5 d三次给药达高效,适于推广应用。 相似文献
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制备了吡喹酮脂质体冻干剂,并对其质量进行评估。采用薄膜-超声法制备吡喹酮脂质体,结合冷冻干燥技术制备吡喹酮脂质体冻干剂,建立HPLC法测定吡喹酮脂质体的包封率,并研究其稳定性。优化后的脂质体冻干剂包封率在70％以上,粒径范围220～310nm,电镜结果显示,脂质体外观圆整而且均匀。本法制备的吡喹酮脂质体冻干剂质量稳定,且建立的包封率测定方法稳定可靠。 相似文献
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“九○安”对血吸虫病化疗牛药物副反应的抑制效果观察 总被引：1，自引：0，他引：1
当前,国内普遍选用吡喹酮化疗牛血吸虫病,它具有疗效高、疗程短、毒性低、投药简便等优点。但吡喹酮有一定的毒性,使用吡喹酮会引起部分牛发生副反应,副反应发生率在10％以上,国内均有此报道。我站于1990－1991年进行了“九○安”对吡喹酮治牛血吸虫病副反应的抑制效果的试验,试验结果表明：“九○安”对吡喹酮化疗牛血吸虫病副反应的抑制效果明显,抑制率在99％以上,且对吡喹酮的疗效无影响。为了进一步观察初试结果,笔者于1994～1996年结合当年耕牛血吸虫病的化疗工作进行了扩大观察研究,现报告如下：1吡喹酮副反应的表现及其影… 相似文献
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Beran GW 《Preventive veterinary medicine》2008,86(3-4):198-207
When early people made their appearance, zoonotic infectious diseases were already waiting, but epidemic diseases did not appear in human history until people began to live in large numbers under conditions of close contact, mainly during the last 10,000 years. Disease has decimated urban populations, conquered armies, and disrupted society. The focus here is on (1) the plague of Athens and the Black Death; (2) smallpox, influenza, and rabies; (3) avian influenza prion diseases, and foot & mouth disease; and (4) emerging and re-emerging diseases. All have veterinary public health associations. In Athens, Greece, in 430 BC, when the Spartans ravaged the countryside, hordes crowded into Athens so that orderly movements, space in which to live, and adequate supplies of food became impossible. Crowding of any population fosters disease transmission; chaos and disorder enhance it all the more. Out of northern Egypt came a terrible plague from across the Mediterranean Sea. The identity of the plague of Athens remains unsure, but the well-considered conclusion is Rift Valley Fever, a mosquito borne, viral zoonosis. The Black Death, also called the Plague, raged in Asia for centuries. In 1347, the Black Death was brought by a ship out of Asia to Sicily. The scenes of devastation were repeated throughout Europe, with 90% or more of the people dying in city after city. Influenza, too, has been a cause of periodic human epidemics, but the great pandemic of influenza occurred in the last months of World War I. In the years of highest occurrence, more than half the world's population became clinically infected. If veterinary public health had been born earlier, it could have led to elucidating the epidemiology of influenza and the plagues of Athens, Europe, and Asia. In turn, smallpox had also caused continual tragedy. In 1796, Edward Jenner began to harvest pustules of cowpox from children or infected cows and inject them into susceptible children. In 1980, the World Health Organization declared that smallpox had been eliminated from the world. Rabies, though, still strikes terror. A number of animal diseases, broadly termed emerging and re-emerging diseases, need surveillance because they have the potential to impact human health. From late in 2003 to 2007, the highly pathogenic H5N1 influenza virus in poultry infected at least 121 people and caused 62 deaths in four countries. The prion diseases, too, all have very high numbers in concentrated contacts. To control these diseases, veterinary public health is essential, with diagnosis, epidemiological surveillance, clinical manifestations, and prevention as primary measures. 相似文献
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Dekker A Dercksen D Snoep J van Wuyjckhuise L 《Tijdschrift voor diergeneeskunde》2007,132(18):695-701
On 26th of july 2007 a new case of bluetongue was notified in the Netherlands and on 2nd of august 2007 foot-and-mouth disease was diagnosed in Surrey, England, which raised the threat of having both infections simultaniously in one area. Bluetongue and foot-and-mouth disease have a different pathogenesis, but symptoms may resemble each other at a later stage of infection. The pathogenesis and possible clinical symptoms of both infections are discussed and illustrated with pictures. 相似文献
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在动物的异常行为中以刻板行为最为常见,而咽气癖又是马最常见的口部刻板行为之一。作者就咽气癖在生理方面和心智方面对马体产生的影响、行为基础、诱因的研究进展及常见的防治措施进行综述。 相似文献
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