M6: Key Pharmacokinetic Properties of Antibiotics Flashcards
Non-Renal Elimination (7)
Most antibiotics require dose adjustments in
renal insufficiency, except for these
Azithromycin Beta-lactams (ceftriaxone, naf/ox) Clindamycin Moxifloxacin Rifampin Tetracyclines Fidaxomicin
Elimination Dependent on Hepatic Function (6)
Require dose adjustment or close monitoring
in hepatic insufficiency
Tigecycline Rifampin Nafcillin/Oxacillin Ceftriaxone Metronidazole Clindamycin
Good/Very Good Oral Absorption (10)
*Concurrent administration of di- and tri-valent cations decrease absorption (via chelation)
Clindamycin Fluoroquinolones* Linezolid Metronidazole Nitrofurantoin Tetracyclines* Rifampin TMP/SMX Beta-lactams (good) Macrolides
Minimal Oral Absorption (4)
Aminoglycosides
Polymyxins
Vancomycin
Fidaxomicin
Wide Distribution (excellent CSF penetration) (4)
Metronidazole
Rifampin
TMP/SMX
Linezolid
Moderate Distribution (good CSF penetration) (9)
Vancomycin Select Beta-lactams -ceftriaxone -cefuroxime -ceftazidime -cefepime -imipenem -meropenem Fluoroquinolones
Poorly Distributed (4) *(only for cystitis due to low systemic levels)
Aminoglycosides
Daptomycin
Polymyxins
Nitrofurantoin*
Azithromycin Beta-lactams (ceftriaxone, naf/ox) Clindamycin Moxifloxacin Rifampin Tetracyclines Fidaxomicin
Non-Renal Elimination (7)
Most antibiotics require dose adjustments in
renal insufficiency, except for these
Tigecycline Rifampin Nafcillin/Oxacillin Ceftriaxone Metronidazole Clindamycin
Elimination Dependent on Hepatic Function (6)
Require dose adjustment or close monitoring
in hepatic insufficiency
Clindamycin Fluoroquinolones* Linezolid Metronidazole Nitrofurantoin Tetracyclines* Rifampin TMP/SMX Beta-lactams (good) Macrolides
Good/Very Good Oral Absorption (10)
*Concurrent administration of di- and tri-valent cations decrease absorption (via chelation)
Aminoglycosides
Polymyxins
Vancomycin
Fidaxomicin
Minimal Oral Absorption (4)
Metronidazole
Rifampin
TMP/SMX
Linezolid
Wide Distribution (excellent CSF penetration) (4)
Vancomycin Select Beta-lactams -ceftriaxone -cefuroxime -ceftazidime -cefepime -imipenem -meropenem Fluoroquinolones
Moderate Distribution (good CSF penetration) (9)
Aminoglycosides
Daptomycin
Polymyxins
Nitrofurantoin*
Poorly Distributed (4) *(only for cystitis due to low systemic levels)