Pharmacokinetics Flashcards
What is the formula of T1/2?
0.693* VD/CL
What is dose/ drug concentration ?
VD
What is the formula of bioavailability ?
Oral dose/IV DOSE
What is the formula for VD in related to salt and bioavailability ?
VD= DOSECFSALT/Conc at time 0
WHAT IS THE STEADY STATE CLEARED FORMULA IN RELATED TO RATE OF ABSORPTION ?
Css = RA/CL
What is the enlarged formal of Css?
Dose* FS/CLt
What is the formula of maintenance dose ?
Md = CssClT
What is the formula of Initial dose ?
Css* tcl/FS
What is the formula of loading dose.?
VdC/FS
What is bio equivalent drugs.?
Two drugs with equal bioavailability and plasma concentration
Is phenobarbital a cytochrome inducer?
Yes
Increases Phase 1 Metabolism
Which drugs can easily get absorbed and difficult to excrete ?
Lipophillic
What drugs should be given to pregnant women ?
High Mol weight and less lipophillic drugs