Transcription of Basic Pharmacokinetics Sample Chapter
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666 Extravascular routes of Drug remaining to be absorbed, or drugremaining at the site of Determination of elimination half life(t1/2) and elimination rate constant (KorKel) Absorption rate constant (Ka) Wagner Nelson method(one-compartment model) andLoo Riegelman method(two-compartment model) Lag time (t0) Some important comments on theabsorption rate The apparent volume of distribution (V) Time of maximum drug concentration,peak time (tmax) Maximum (peak) plasma concentration(Cp) Some general Example for extravascular route of Flip-flop kinetics126 ObjectivesUpon completion of this Chapter , you will have the ability to: calculate plasma drug concentration at any given time after the administration of an extravasculardose of a drug, based on known or estimated pharmacokinetic parameters interpret the plasma drug concentration versus time curve of a drug administered extravascularlyas the sum of an absorption curve and an elimination curve employ extrapolation techniques to characterize the absorption phase calculate the absorption rate constant and explain factors that influence this constant explain possible reasons for the presence oflag timein a drug s absorption calculate peak plasma drug concentration,(Cp)max, and the time,tmax, at whi
106 BasicPharmacokinetics 6.1 Introduction Drugs, through dosage forms, are most frequently administered extravascularly and the majority of them are intended to act systemically; for this reason,
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