한국인과 코카시안 충수돌기염 환자에서 비모수적 기대최대치(NPEM) 연산방법에 의한 겐타마이신의 모집단 약물동태학

범진필 한국임상약학회 2011 한국임상약학회지 Vol.21 No.2

Population pharmacokinetics for gentamicin were compared with 20 Korean patients (14 male and 6 female) and 25 Caucasian appendicitis patients (16 male and 9 female). Two to six blood specimens were collected from all patients at the following times : just before a regularly scheduled infusion and at 0.5 hour after the end of a 0.5 hour infusion. Nonparametric expected maximum(NPEM) algorithm for population modeling was used. The estimated parameters were the elimination rate constant(K), the slope(KS) of the relationship between K versus creatinine clearance(Ccr), the apparent volume of distribution (V), the slope(VS) of the relationship between V versus weight, gentamicin clearance(CL) and the slope(CS) of the relationship between CL versus Ccr and the V. The output includes two marginal probability density function(PDF), means, medians, modes, variance, skewness, kurtosis, and CV%. The mean K(KS) were 0.402±0.129 hr-1 (0.00486±0.00197 [hr·mL/min/1.73 m2]-1) and 0.425±0.137 hr-1(0.00432±0.00168 [hr·mL/min/1.73 m2]-1) for Korean and Caucasian populations, respectively. The mean V(VS) were not different at 14.3±3.69 L(0.241±0.0511 L/kg) and 15.8±4.81 L (0.236±0.0531 L/kg) for Korean and Caucasian populations, respectively (P>0.2). The mean CL(CS) were 5.68±1.69 L/hr (0.0714±0.0222 L/kg[hr·mL/min/1.73 m2]) and 6.29±1.84 L/hr (0.0629±0.0189 L/kg[hr·mL/min/1.73 m2]) for Korean and Caucasian populations, respectively. There are no differences in gentamicin pharmacokinetics between Korean and Caucasian appendicitis patients.

Stalility of Paclitaxel with Cephalosporines in 0.8 Sodium Chloride Injection and 5 Dextrose Injection During Simulated Y-Site Administration

범진필 한국임상약학회 2003 한국임상약학회지 Vol.13 No.2

Paclitaxel과 cephalosporines(제1세대인 ceftezole sodium과 cephradine, 제2세대인 cefamandole sodium과 cefmetazole sodium, 제3세대인 cefoperazone sodium과 cefotaxime sodium 그리고 제4세대인 cefepime hydrochloride)을 5% 포도당주사액 그리고 0.9% 염화나트륨주사액과 함께 Y-Site 장치를 써서 환자에게 주입할 때 paclitaxel의 안정성에 관하여 연구하였다. Paclitaxel 0.3mg/ml 및 1.2mg/ml과 cephalosporines 20mg/ml을 각각 1:1로 혼합한 후 0, 1, 2, 4, 12시간 시점에서 paclitaxel의 농도를 HPLC로 분석하였다. 방해물질에 의한 분석오차를 줄이기 위해 분석법을 여러 상태에서 확인하였으며, 각 농도에서 3차례씩 실험하였고 각 샘플은 2차례 반복하여 HPLC로 분석하였다. 분석전에 각 시료의 투명도, 색의 변화, 침전상태 및 pH를 검사하였다. Paclitaxel 0.3 mg/ml 및 1.2mg/ml와 cephalosporines 20mg/ml를 각각 혼합하였을 때 12시간 동안 안정하였으며, 주사액의 혼탁이나 색의 변화 및 침전은 나타나지 않았으며 pH도 변하지 않았다.

임상약학 교육을 위한 수련과정

범진필 한국임상약학회 1993 한국임상약학회지 Vol.3 No.2

반코마이신의 약물동태학적 모델링과 시뮬레이션의 향상을 위한 분석오차

범진필 대한약학회 2013 약학회지 Vol.57 No.1

The purpose of this study was to determine the influence of assay error for improved pharmacokinetic mod- eling and simulation of vancomycin on the Bayesian and nonlinear least squares regression analysis in 24 Korean gastric ncer patients. Vancomycin 1.0 g was administered intravenously over 1 hr every 12 hr. Three specimens were collected at 72 hr after the first dose from all patients at the following times, at 0.5 hr before regularly scheduled sion, at 0.5 hr and 2 hr after the end of 1 hr infusion. Serum vancomycin levels were analyzed by fluorescence polarization munoassay technique with TDX-FLX. The standard deviation (SD) of the assay over its working range had been determined at the serum vancomycin concentrations of 0, 20, 40, 60, 80 and 120 µg/ml in quadruplicate. The polynomial equation of van- comycin assay error was found to be SD (µg/ml)=0.0224+0.0540C+0.00173C2 (R 2=0.935). There were differences in the influence of weight with vancomycin assay error on pharmacokinetic rameters of vancomycin using the nonlinear least squares regression analysis but there were no differences on the Bayesian analysis. This polynomial equation can be used to improve the precision of fitting of pharmacokinetic models to optimize the process of model simulation both for population and for individualized pharmacokinetic models. The result suggests the improvement of dosage regimens for the better and safer care of patients receiving vancomycin.

Stability of Paclitaxel with Cephalosporines in $0.9\%$ Sodium Chloride Injection and $5\%$ Dextrose Injection During Simulated Y-Site Administration

범진필,Burm, Jin Pil Korean College Of Clinical Pharmacy 2003 한국임상약학회지 Vol.13 No.2

Paclitaxel과 cephalosporines(제 1세대인 ceftezole sodium과 cephradine, 제2세대인 cefamandole sodium과 cefmetazole sodium, 제3세대인 cefoperazone sodium과 cefotaxime sodium 그러고 제4세대인 cefepime hydrochloride)을 $5\%$포도당주사액 그리고 $0.9\%$ 염화나트륨주사액과 함께 Y-Site 장치를 써서 환자에게 주입할 때 paclitaxel의 안정성에 관하여 연구하였다. Paclitaxel 0.3 mg/ml 및 1.2 mg/ml과 cephalosporines 20 mg/m을 각각 1 : 1로 혼합한 후 0, 1, 2, 4, 12시간 시점에서 paclitaxel의 농도를 HPLC로 분석하였다. 방해물질에 의한 분석오차를 줄이기 위해 분석법을 여러 상태에서 확인하였으며, 각 농도에서 3차례씩 실험하였고 각 샘플은 2차례 반복하여 HPLC로 분석하였다. 분석전에 각 시료의 투명도, 색의 변화, 침전상태 및 pH를 검사하였다. Paclitaxel 0.3 mg/ml 및 1.2 mg/ml와 cephalosporines 20 mg/ml를 각각 혼합하였을 때 12시간 동안 안정하였으며, 주사액의 혼탁이나 색의 변화 및 침전은 나타나지 않았으며 pH도 변하지 않았다.

The Influence of Assay Error Weight on Gentamicin Pharmacokinetics Using the Bayesian and Nonlinear Least Square Regression Analysis in Appendicitis Patients

범진필 대한약학회 2005 Archives of Pharmacal Research Vol.28 No.5

The purpose of this study was to determine the influence of weight with gentamicin assay error on the Bayesian and nonlinear least squares regression analysis in 12 Korean appendicitis patients. Gentamicin was administered intravenously over 0.5 h every 8 h. Three specimens were collected at 48 h after the first dose from all patients at the following times, just before regularly scheduled infusion, at 0.5 h and 2 h after the end of 0.5 h infusion. Serum gentamicin levels were analyzed by fluorescence polarization immunoassay technique with TDxFLx. The standard deviation (SD) of the assay over its working range had been determined at the serum gentamicin concentrations of 0, 2, 4, 8, 12, and 16 µg/mL in quadruplicate. The polynominal equation of gentamicin assay error was found to be SD (µg/mL) = 0.0246 - (0.0495C) + (0.00203C2). There were differences in the influence of weight with gentamicin assay error on pharmacokinetic parameters of gentamicin using the nonlinear least squares regression analysis but there were no differences on the Bayesian analysis. This polynominal equation can be used to improve the precision of fitting of pharmacokinetic models to optimize the process of model simulation both for population and for individualized pharmacokinetic models. The result would be improved dosage regimens and better, safer care of patients receiving gentamicin.

Stability of Taxol and Ondansetron Hydrochloride in $5\%$ Dextrose Injection and $0.9\%$ Sodium Chloride Injection during Simulated Y-Site Administration

범진필,Burm, Jin Pil Korean College Of Clinical Pharmacy 2000 한국임상약학회지 Vol.10 No.2

Y-Site 투여시 $5\%$포도당액과 생리식염수에서 탁솔과 은단세트론의 안정성에 관해 실온과 형광등 아래서 연구하였다. 온단세트론 0.03 mg/ml, 0.1 mg/ml, 0.3 mg/ml와 탁솔 0.3 mg/ml, 1.2mg/ml를 각각 1:1로 혼합한 후 0, 1, 2, 4, 12시간에서 즉시 약물농도를 HPLC로 분석하였다. 방해물질에 의한 분석오차를 줄이기 위해 분석법을 여러상태에서 확인하였으며, 각 농도에서 3차례씩 실험하였고 각 샘플은 2차례 연속 HPLC 분석하였다. 분석전에 각 시료의 투명도, 색의변화, 침전상태 및 pH를 검사하였다. 온단세트론 0.03, 0.1 및 0.3 mg/ml와 탁솔 0.3 및 1.2mg/ml를 각각 혼합하였을 때 12시간 동안 안정성이 있었다. 혼탁이나 색의 변화 및 침전은 나타나지 않았으며 12시간 동안 pH의 변화는 특별한 경향이 없었다.

청소년의 술, 담배, 기타 약물남용 예방을 위한 적극적인 부보역할 모델

범진필 한국임상약학회 2003 한국임상약학회지 Vol.13 No.1

An appropriate parent role model for alcohol, tobacco and other drug abuse prevention in adolescence was designed as part of a comprehensive effort to reduce the use of alcohol, tobacco and other drugs by underage youth. The content of the model offers a new and positive chemical health model. The model calls for development of a set of guidelines that can provide the framework for examining alcohol, tobacco and other drug use. The actions of adults in the community, especially parents, are very important factors in whether or not youth use chemicals. So these guidelines can be used to assist parents and other adults with questions such as, what can we say to young people about using alcohol, tobacco or other drugs except that it's against the law? At what age and times are discussions appropriate? What can we do to make our community a healthier place in which young people can make better decisions about alcohol, tobacco and other drug use? The model acknowledges and affirms the legal and appropriate use of alcohol and other drugs as well as supports the decision not to drink. It encourages participants to consider their own guidelines for using and not using alcohol and other drugs. The guidelines can also be used as the basis for early intervention when use is illegal, unhealthy or risky. It is important to note that the model affirms healthy and appropriate use as well as nonuse.

청소년의 술,담배, 기타 약물남용 예방을 위한 적극적인 부모역할 모델

범진필 한국임상약학회 2003 한국임상약학회지 Vol.13 No.1

Y-Site 투여시 5% 포도당액과 생리식염수에서 탁솔과 온단세트론의 안정성

범진필 한국임상약학회 2000 한국임상약학회지 Vol.10 No.2

Y-Site 투여시 포도당액과 생리식염수에서 탁솔과 은단세트론의 안정성에 관해 실온과 형광등 아래서 연구하였다. 온단세트론 0.03 mg/ml, 0.1 mg/ml, 0.3 mg/ml와 탁솔 0.3 mg/ml, 1.2mg/ml를 각각 1:1로 혼합한 후 0, 1, 2, 4, 12시간에서 즉시 약물농도를 HPLC로 분석하였다. 방해물질에 의한 분석오차를 줄이기 위해 분석법을 여러상태에서 확인하였으며, 각 농도에서 3차례씩 실험하였고 각 샘플은 2차례 연속 HPLC 분석하였다. 분석전에 각 시료의 투명도, 색의변화, 침전상태 및 pH를 검사하였다. 온단세트론 0.03, 0.1 및 0.3 mg/ml와 탁솔 0.3 및 1.2mg/ml를 각각 혼합하였을 때 12시간 동안 안정성이 있었다. 혼탁이나 색의 변화 및 침전은 나타나지 않았으며 12시간 동안 pH의 변화는 특별한 경향이 없었다.