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1.
头孢克罗缓释片的药物动力学和生物利用度研究   总被引:6,自引:1,他引:5       下载免费PDF全文
比较了头孢克罗缓释片和普通胶囊的药物动力学和生物利用度,8名健康志愿者随机交叉单剂量po750mg缓释片和普通胶囊,采用HPLC法测定血浆和尿中头孢克罗浓度,缓释片和普通胶囊的药动学参数为Cmax7.26±1.08和15.44±3.73μg/ml;Tmax1.13±0.23和0.72±0.16h;t1/20.94±0.19和0.63±0.08h;MRT2.51±0.45和1.35±0.25h,AUC21.65±3.31和22.24±3.68hμg/ml。AUC及其对数形式经三因素方差分析和双单侧检验,两种制剂均无显著性差异,缓释片的相对生物利用度为(98.23±13.73)%。  相似文献   

2.
为比较国产盐酸丁咯地尔片剂和进口盐酸丁咯地尔(活脑灵)片剂的药代动力学参数,求出国产制剂的生物利用度,将12 名健康志愿者随机分为2 组,分别单次口服国产盐酸丁咯地尔片及进口活脑灵片300m g,用HPLC法测定血药浓度,采用3P97 程序处理实验数据,进行药代动力学和相对生物利用度研究。结果表明,口服国产和进口两种制剂的药时曲线均符合一室模型,血药峰浓度Cm ax 分别为(1.95±0.42)m g/L和(2.00±0.57)m g/L,达峰时间Tpeak 分别为(2.42±0.63)h 和(2.48±0.46)h,药时曲线下面积AUC分别为(16.16±3.46)m g/L·h 和(16.21±2.82)m g/L·h。两组参数差别均无统计学意义(P>0.05)。国产盐酸丁咯地尔片剂与进口活脑灵片剂相比,相对生物利用度为(100.7±19.1)% ,两种片剂为生物等效制剂  相似文献   

3.
酮洛芬速溶颗粒剂人体药物动力学研究   总被引:4,自引:1,他引:3       下载免费PDF全文
对酮洛芬速溶颗粒剂进行了人体药物动力学研究。在体内试验中,选10名健康受试者,采用交叉设计方案,以酮洛芬肠溶片为对照对颗粒剂做单剂量给药试验,建立了HPLC-UV法测定血浆中酮洛芬的浓度。结果显示,建立的酮洛芬血浆浓度测定方法,线性范围为0.50~50.0μg/ml,检测限为0.06μg/ml。人体药动学结果显示:颗粒剂Tmax、Cmax及AUC等主要药动学参数分别为0.52h,13.62μg/ml,26.29h·μg/ml,肠溶片的相应参数分别为:3.3h,6.51μg/ml,24.32h·μg/ml。与肠溶片比较,颗粒剂具有吸收速度快的特点。颗粒剂相对于肠溶片的生物利用度为106.43%。经双单侧检验,属生物等效。  相似文献   

4.
采用HPLC-荧光检测法测定舒他西林片中氨苄青霉素的血药浓度,采用SpherisorbODS柱,流动相为磷酸盐缓冲液(0.05mol/L,pH=4.0)-乙腈(7822,V/V),标准曲线范围0.22~13.89μg/ml,r=0.9997,保留时间为7.3min,回收率大于95%,日内和日间差小于7%,最低检测浓度为0.22μg/ml,无内源性杂质干扰。9名受试者的主要药动学参数:T1/2=1.04±0.22h,Cmax=12.35±3.13μg/ml,Tmax=0.83±0.45h,AUC=19.49±3.46μgh/ml。  相似文献   

5.
对乙酰氨基酚溶液剂及其药物动力学研究   总被引:5,自引:0,他引:5  
研制了对乙酰氨基酚溶液剂(5g/0.1L),建立了高效液相色谱法(HPLC-UV)测定血药浓度。以Tyhenol○R(McNeil,USA)混悬液为对照品,研究了自制对乙酰氨基酚溶液剂在8名健康志愿受试者体内的药物动力学。结果显示,对乙酰氨基酚溶液剂在人体内的动力学以二室线性模型描述为宜,其主要药物动力学参数分别为α=0.6152h-1,β=0.1925h-1,t12=3.62h,Ka=3.8864h-1,AUC0→∞=77.23h·μg/ml,相对于Tylenol○R混悬剂的生物利用度为98.85%。  相似文献   

6.
酮洛芬缓释胶囊剂的生物利用度研究   总被引:4,自引:0,他引:4  
8 名健康受试者单剂量和多剂量交叉口服酮洛芬缓释胶囊的试验制剂和参比制剂。单剂量试验结果表明,达峰时间分别为5 .68 ±1 .73 h 和6 .58 ±1 .92 h ,峰浓度分别为3 .91 ±1 .13 μgml 和3 .15 ±0 .79 μgml ,两种制剂的药动学参数无显著性差异,试验制剂的相对生物利用度为(99 .97 ±9 .63) % 。多剂量试验研究表明,试验制剂和对照制剂的波动系数分别为2 .56 ±0 .47 和2 .55 ±0 .73 ,经统计学处理无显著性差异,表明两种制剂的安全性相当。  相似文献   

7.
目的建立血清中硝苯地平浓度的HPLC测定法,研究其在自发性高血压大鼠(SHR)体内的药动学。方法SHR灌胃给与硝苯地平10mg/kg,用HPLC法测定硝苯地平血清浓度。用乙酸乙酯提取出血清中的硝苯地平,在50℃水浴中用氮气吹干,残渣用流动相溶解后进样。选用shimPackCLC-ODS柱,甲醇-水(6∶4)作流动相,检测波长235nm。结果:硝苯地平最低检出浓度为0.02μg/ml,标准曲线线性范围为0.02~5.0μg/ml(r=0.9997),血样平均回收率为98.09%。硝苯地平在大鼠体内的药动学符合一定开放模型,其参数为T1/2ka=0.828±0.55h,T1/2ke=3.17±2.32h,Tmax=2.12±1.47h,Cmax=2.78±1.50μg/ml和AUC=24.5±29.2h·μg/ml。结论本法能满足血清中硝苯地平浓度测定及药动学研究的需要。  相似文献   

8.
格列吡嗪胶囊的相对生物利用度及其生物等效性评价   总被引:8,自引:0,他引:8  
10名健康志愿者随机交叉po单剂量10mg格列吡嗪胶囊(国产)或片(进口)。利用HPLC测得血浆中药物浓度分别在2.52±0.42和2.76±0.20h达到峰值632.9±105.8和620.0±104.9ng/ml。血药浓度-时间曲线下面积分别为4764.7±652.6和4695.9±601.0ng·h/ml。药-时曲线符合一级吸收的单室模型。格列吡嗪胶囊的相对生物利用度F为1.01±0.079,经统计分析两种制剂具有生物等效性。  相似文献   

9.
国产氨氯吡咪片的相对生物利用度及其生物等效性评价   总被引:2,自引:0,他引:2  
6名健康志愿者随机交叉po单剂量10mg氨氯吡咪国产或进口片。利用HPLC测得血浆中药物浓度分别在3.12±0.50和3.07±0.71h达到峰值25.4±5.3和21.8±8.9ng/ml。血药浓度-时间曲线下面积分别为253±66和226±56ng·h/ml。药-时曲线符合一级吸收的单室模型,国产氨氯吡咪片的相对生物利用度F为1.14±0.34,经统计分析两种制剂具有生物等效性。  相似文献   

10.
萘普生缓释片的制备及其人体生物利用度研究   总被引:1,自引:0,他引:1  
为减少萘普生普通片剂口服后对胃肠道的刺激性,制备了萘普生缓释片,研究了萘普生缓释片和普通片的药物动力学和生物利用度。通过体外溶出度的方法研究了缓释片的释药动力学,并采用HPLC法测定了普通片和缓释片口服后血浆中萘普生的浓度。结果表明,缓释片体外释放符合一级动力学过程。10名健康志愿者随机交叉单剂量口服2×250mg萘普生缓释片和普通片,峰浓度(Cmax)分别为(57.79±7.32)μg/ml和(69.90±11.88)μg/ml;缓释片与普通片的达峰时间(tmax)分别为(6.5±1.9)h和(2.3±0.8)h。结果表明,与普通片相比较,缓释片口服后能明显推迟达峰时间,并降低峰浓度(P<0.01)。缓释片与普通片的AUC0→24之间没有显著性差异(P>0.05);缓释片相对于普通片的生物利用度为(108.5±10.7)%。  相似文献   

11.
FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…  相似文献   

12.
Dr.Zhang Ren,the chief physician,is the chairman of Shanghai Acupuncture and Moxibustion Association.Having been engaged in medicine for about 40 years,he is experienced in treating various intractable diseases.In his long years of clinical practice,he advocates taking the TCM differentiation as the basis to seek for the acupuncture method for treatment of modern intractable diseases.The author of this essay had the fortune to follow Dr.Zhang in study.The following is a summary of Dr.Zhang's experience in the acupuncture treatment for different intractable diseases with the same therapeutic principle.  相似文献   

13.
In treating chronic nephropathy,Luo Lingjie,a chief physician,pays attention to regulating the balance between yin and yang,treating infection if present,and removing pathogenic factors.He prescribes gentle drugs and uses carefully strongly warming-tonifying ones,emphasizes the importance of persuading the patient to persist in treatment with medication and nurse one's health for recuperation,and is good at combined use of TCM and western medicine therapy and brings the merits of various therapies into full play,with obvious theraoeutic effects.  相似文献   

14.
Objective: To observe the therapeutic effects in acupunture treatment of primary dysmenorrhea combined with spinal Tui Na, and study its mechanism. Methods: Thirty cases of the treatment group were treated by acupuncture combined with spinal Tui Na, and thirty cases in the control group were treated by routine acupuncture. Results: The total effective rate was 93.3% in the treatment group, and 73.3% in the control group, with a significant difference between the two groups (P<0.05). Conclusions: Acupuncture combined with spinal Tui Na has good prospects for treatment of primary dysmenorrhea.  相似文献   

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16.
目的 探讨猪肺磷脂注射液联合经鼻持续气道正压通气(NCPAP)对呼吸衰竭早产儿的临床疗效及肌酸激酶同工酶活性(CK-MB)的影响.方法 选取呼吸衰竭早产儿80例,分为观察组和对照组各40例.对照组采用NCPAP给氧治疗,观察组给予NCPAP给氧联合猪肺磷脂气管内给药.观察两组患儿治疗前及治疗12h、24 h后PaO2、PaCO2、血氧饱和度(SaO2)、pH的变化情况,检测治疗前及治疗5d后血清CK-MB水平;评估两组患儿的临床治疗效果.结果 两组患儿PaO2、PaCO2、SaO2、pH比较,差异均有统计学意义(P<0.05),其中观察组治疗后的PaO2、SaO2、pH均高于对照组,PaCO2则低于对照组.两组的PaO2、SaO2、pH均随观察时间延长而升高(P<0.05),PaCO2均随观察时间的延长而降低(P<0.05).观察组治疗有效率为87.5%,显著高于对照组的70.0% (P <0.05).治疗5d后两组患儿血清CK-MB水平均较前降低(P<0.05),且观察组明显低于对照组(P<0.05).结论 猪肺磷脂注射液气管内给药联合NCPAP可以显著降低呼吸衰竭早产儿CK-MB的含量,提高治疗有效率,起到很好的呼吸循环支持作用.  相似文献   

17.
Evidence obtained from randomized controlled trials (RCTs) has been generally accepted as the gold standard in the evaluation of clinical effectiveness. Readers need to understand the trial design, implementation, results, analysis and interpretation, so as to fully Jnderstand the results of RCTs. Thus, the investigators of RCTs have to report these items in a complete, accurate and clear manner. Since 1998, we have conducted several evaluations on the reporting quality of RCTs published in Chinese journals on traditional Chinese medicine (TCM) and results have shown that there is an urgent need for higher quality RCTs on TCM.  相似文献   

18.
Ankylosing spondylitis is a chronic and progressive disorder with inflammation mainly involving the central axis joints. It mainly affects the cervical spine and the lumbosacral area, with the pathogenesis closely related to the kidney and the Governor Vessel (GV). TCM holds that the syndrome is deficiency in origin and excess in superficiality, which is due to insufficiency of the kidney, deficiency of GV, and blocking of the channels with the invasion of exogenous evil, leading to poor circulation of qi and blood and malnutrition of the bones, muscles and joints. The TCM method of tonifying the kidney and strengthening GV to regulate circulation of qi and blood and check the arthralgia pain should be adopted, with the Kidney-Tonifying and GV Strengthening Decoction (益肾强督汤) prescribed.  相似文献   

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CHEMOTHERAPY playsa greatrolein the treat- ment of malignanttumors,especiallyingynecolo- gicalones.But inanticancerchemotherapy,leuko-cytopeniaisfrequentlytheprimarydose-limitingsideeffect factor.Moreover,cancersarefrequentlychemoresistantbe-causeof overexpressionof P-glycoprotein(P-gp), which isencodedby multidrugresistancegene (MDR1 ) and detectableinup to50% ofhuman cancersand renderscellsresistancetoanticancerdrugs.The safetyand potentialtherapeuticbenefitof mdr1 gene transferredto h…  相似文献   

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