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1.
Pakistan Journal of Pharmaceutical Sciences. 2016; 29 (6): 2079-2082
em Inglês | IMEMR | ID: emr-184152

RESUMO

A pharmacokinetic study of anticancer drugs was carried out in 18 Hodgkin's lymphoma male patients. The anticancer drugs were administered to the patient by a standard procedure and a validated HPLC method was used for plasma concentration determination. Maximum plasma concentration [C[max]] of Adriamycin, Bleomycin, Vinblastine and Dacarbazine [ABVD] were 7.71, 4.32, 7.95 and 6.51 micro g/ml respectively. Adriamycin and Dacarbazine exhibited longer T[max] compared to Bleomycin and Vinblastine. Area under the curve values of ABVD were 118.30, 82.11, 245.54 and 86.62 micro g/ml h. The elimination rate constant of Dacarbazine was highest. Vinblastine exhibited highest half-life and mean residence time. Clearances of ABVD were 346.69, 2499.44, 45.90 and 5800.05ml/h. The apparent volume of distribution was highest for Dacarbazine and lowest for Vinblastine. The pharmacokinetic parameters can be utilized for monitoring of plasma concentrations, therapeutic drug monitoring and dosage adjustments to optimize anticancer efficacy in patients of Hodgkin's lymphoma

2.
Pakistan Journal of Pharmaceutical Sciences. 2014; 27 (1): 153-159
em Inglês | IMEMR | ID: emr-142994

RESUMO

The study was aimed to evaluate various pharmacokinetic parameters of a commercially available fixed dose combination of oral antidiabetics [Metformin/Glibenclamide 500/5mg tablets] in plasma sample of normal healthy adult male volunteers by applying an accurate, selective, and reproducible HPLC-UV analytical method for quantification of Metformin HCL and Glibenclamide simultaneously in a single chromatographic run. Previously no HPLC-UV analytical method for simultaneous estimation of Metformin/Glibenclamide has been reported in Pakistan. The human plasma samples were evaluated by using an isocratic High Performance Liquid Chromatography [HPLC] system of Sykam consisted of a pump with a column of Thermo Electron Corporation USA [ODS hypersil C[18] 4.6 mm x 250 mm], a UV-detector with data processing Clarity software. The mobile phase of 0.040M Potassium dihydrogen phosphate containing 0.25mL/L triethylamine at pH 3.5 [adjusted with 1:1 phosphoric acid] and acetonitrile [465: 535v/v] was delivered with injection volume of 100microL at flow rate of 1 mL/min at 25degreeC temperature. The detection was performed at lamda[max]230 nm. By applying this method, important pharmacokinetic parameters C[max], T[max], AUC[0-infinity], AUMC[0-infinity], t[1/2], Ke, MRT, V[d] and Cl[T] are calculated. Maximum plasma concentrations C[max] was 131.856 +/- 8.050ng/ml for Glibenclamide [Mean +/- SEM] and 511.106 +/- 12.675 ng/ml for Metformin HCl [Mean +/- SEM].


Assuntos
Humanos , Masculino , Glibureto/farmacocinética , Cromatografia Líquida de Alta Pressão/métodos , Estudos Cross-Over , Estabilidade de Medicamentos , Hipoglicemiantes , Taxa de Depuração Metabólica
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