Bioavailability and Clearance III + IV Flashcards
Beta blockers
-lower QH
-lower cardiac output
incressing CL
dec AUCiv
factors effecting F of low Eh drug
-none
factors affecting F in HIGH EH drug
-QH
-fu
-CLint
increasing CLint will
decrease F of high EH drug
Factors affecting AUC
factors affecting CL
CL and AUCiv move in
opposite directions
factors affecting AUCiv of low EH drug
-fu
-CLint
factors affecting AUCiv of high EH drug
-Qh
Oral clearance of low and high EH drugs
CL/F = fu x CLint
factors affecting AUCpo
-fu
-CLint
in both high and low EH drugs
CL and AUCpo move in
opposite directions
Weak base is ionized at
low pH
ionization of drug (polar, strong acids and bases)
-low reabsorption
-lower renal CL
unionized drug (weak acids and bases)
-higher reabsorption
-low renal CL