Aminoglycosides Flashcards
*What type of drug are aminoglycosides?
Powerful G- antibiotic
Why are aminoglycosides not generally used in food animals?
Long withdrawal times
Examples of aminoglycosides
- Gentamicin
- Amikacin
- Kanamycin
- Neomycin
- Streptomycin
- Tobramycin
How are aminoglycosides effective against bacteria?
- inhibit bacterial protein synthesis by attaching to the bacterial ribosome
- will kill the bacteria
*How are aminoglycosides absorbed in the body?
- hydrophilic at physiologic pH
- not well absorbed in GI tract or uterus
- absorbed well after parenteral administration
How are aminoglycosides distributed in the body?
does not penetrate CNS
*What can cause toxicity when administering aminoglycosides?
when the drug accumulates in the inner ear tissues and the kidney
How are aminoglycosides eliminated from the body?
excreted from the kidney
What are aminoglycosides effective against?
- G-
2. some G+
What bacteria should aminoglycosides be used against?
G- bacteria
don’t need to use it for G+ because there are much safer options for G+ bacteria
*When should you be cautious when using aminoglycosides?
animals with renal disease or poor renal blood perfusion
What aminoglycosides should not be mixed with penicillin in the same syringe?
- gentamicin
- amikacin
- kanamycin
- tobramycin
*What inactivates aminoglycosides?
organic debris
What animal should you not use aminoglycosides on?
adult food animals