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贝敏伪麻胶囊在健康人体中的药动学及相对生物利用度

Pharmacokinetics and bioequivalence of Beiminweima capsules in Chinese healthy volunteers
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摘要 目的 研究贝敏伪麻胶囊(试验制剂)和贝敏伪麻片(参比制剂)的人体药动学和相对生物利用度。方法 20名健康男性受试者随机双交叉试验,分别单剂量口服试验制剂2粒或参比制剂1片。采用HPLC法测定水杨酸的血药浓度,采用LC-MS/MS法测定对乙酰氨基酚、伪麻黄碱和氯苯那敏的血药浓度,用DAS Ver 2.0软件计算药动学参数,并评价其生物利用度。结果 试验制剂和参比制剂水杨酸的主要药动学参数Cmax分别为(7.31±5.21)、(7.55±4.11)μg.mL-1,tmax分别为(2.65±0.96)、(2.44±0.80)h,AUC0~36 h分别为(41.58±26.49)、(43.35±26.11)μg.h.mL-1。对乙酰氨基酚的主要药动学参数Cmax分别为(927.60±581.63)、(934.29±547.57)ng.mL-1,tmax分别为(3.2±1.8)、(2.3±0.8)h,AUC0~48 h分别为(6 515.39±2 762.32)、(6 657.62±3133.67)ng.h.mL-1。伪麻黄碱的主要药动学参数Cmax分别为(134.16±45.88)、(140.86±55.92)ng.mL-1,tmax分别为(1.9±0.8)、(1.6±0.7)h,AUC0~48 h分别为(1 018.09±367.80)、(1 020.17±388.85)ng.h.mL-1。氯苯那敏的主要药动学参数Cmax分别为(3.64±1.52)、(3.90±1.64)ng.mL-1,tmax分别为(3.0±1.8)、(3.2±2.0)h,AUC0~8 h分别为(74.29±33.13)、(74.95±34.96)ng.h.mL-1。以AUC0~t计算试验制剂中水杨酸、对乙酰氨基酚、伪麻黄碱和氯苯那敏对参比制剂的相对生物利用度F分别为(94.18±18.60)%、(101.62±22.89)%、(102.63±17.55)%和(101.33±16.50)%。结论 建立的HPLC以及LC-MS/MS测定法准确、灵敏,结果可靠;统计分析表明贝敏伪麻试验制剂和参比制剂中水杨酸、对乙酰氨基酚、伪麻黄碱和氯苯那敏的吸收、分布、消除速率与程度均无明显差异。 Objective To study the pharmacokinetics and bioequivalence of Beiminweima capsules(test preparation) and tablets(reference preparation) in Chinese healthy volunteers. Methods Totally 20 healthy male volunteers enrolled in a randomized 2-way cross-over design. A single oral dose of 2 capsules of test preparation or 1 tablet of reference preparation was given to each volunteer. The concentration of salicylic acid was determined by HPLC. The concentrations of paracetamol, pseudoephedrine and chlorphenamine were determined by LC-MS/MS. The pharmacokinetics and bioavailability of the 2 preparations were compared and calculated by DAS Ver 2.0 software. Results The main pharmacokinetic parameters of salicylic acid test and reference formulations were as follows: Cmax was(7.31±5.21) and(7.55±4.11) μg·mL- 1, tmax was(2.65±0.96) and(2.44±0.80) h, AUC0-36 h was(41.58±26.49) and(43.35±26.11) μg·h·mL- 1, respectively. The main pharmacokinetic parameters of paracetamol test and reference formulations were as follows: Cmax was(927.60±581.63) and(934.29±547.57) ng·mL- 1, tmax was(3.2±1.8) and(2.3±0.8) h, AUC0-48 h was(6 515.39±2762.32) and(6 657.62±3133.67) ng·h·mL- 1, respectively. The main pharmacokinetic parameters of pseudoephedrine test and reference formulations were as follows: Cmax was(134.16±45.88) and(140.86±55.92) ng·mL- 1, tmaxwas(1.9±0.8) h and(1.6±0.7) h, AUC0-48 h was(1 018.09±367.80) and(1 020.17±388.85) ng·h·mL- 1, respectively. The main pharmacokinetic parameters of chlorphenamine test and reference formulations were as follows: Cmaxwas(3.64±1.52) and(3.90±1.64) ng·mL- 1, tmax was(3.0±1.8) and(3.2±2.0) h, AUC0-48h was(74.29±33.13) and (74.95±34.96) ng·h·mL- 1, respectively. The relative bioavailability of the test preparation to reference preparation were(94.18±18.60)% for salicylic acid,(101.62±22.89)% for paracetamol,(102.63±17.55)% for pseudoephedrine and(101.33±16.50)% for chlorphenamine. Conclusion The HPLC and LC-MS/MS methods prove accurate and sensitive with reliable results. There is no difference in rate and extent of absorption, distribution and elimination of salicylic acid, paracetamol, pseudoephedrine and chlorphenamine between the test and reference preparation.
出处 《中南药学》 CAS 2014年第2期116-122,共7页 Central South Pharmacy
关键词 贝敏伪麻胶囊 片剂 药动学 生物利用度 高效液相色谱-串联质谱法 Beiminweima capsule tablet pharmacokinetics bioequiavailability HPLC-MS/MS
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