Protein Synthesis Flashcards
Oral availability of erythromycin?
Poor, but still used!
Treatment of local MRSA?
Mupirocin topically
Why would we use Minocycline?
Doxy shortage Better oral bioavailability
Spectrum of Fusidic Acid?
G+ MRSA in humans
What subunit does Avilamycin bind to?
30s
Spectrum of macrolides?
G+
Cross-resistance of Streptogramins?
Strep B and Macrolides/Lincosamides
Route of administration of Erythromycin in cattle?
IM
Route of administration of most tetracyclines?
PO
Macrolides and Lincosamides should not be used in what species?
Rabbits Gerbils, Guinea pigs Hamsters
Use of erythromycin?
Cattle R. equi in foals
Antibiotic used for gut sterilization?
Neomycin
Antibiotic used as a growth promoter outside the US?
Avilamycin
Treatment of septic arthritis in foals?
Amikacin used intra-articularly (extra-label)
Drugs that are taken up by phagocytes, thereby prolonging the effect?
Erytrhyromycin Tulathyromycin Azithromycin
Aminoglycosides are effective against what bacteria?
G- aerobes
Which Aminoglycosides can cause auditory injury?
Amikacin Neomycin
MOA of Mupirocin?
Bind to isoleucyl tRNA synthase
What routes of administration should be avoided with doxy?
IV-horses IM/SQ in all species
Species that Azithromycin is used in?
Small Animals (specifically for Mycoplasma, Chlamydia, Babesia)
Doxycycline is used in what species?
Small Animals
MOA of Amphenicols?
Inhibit peptidyl transferase
How do tetracylines work on G- bacteria?
Enter the pores
Antibiotic used to treat hepatic encephalopathy?
Neomycin But Lactulose is better
What antibiotic is used as a last resort drug in humans for MRSA, VRE, and TB?
Linezolid
MOA of Fusidic Acid?
Inhibit attachment of tRNA to the ribosome
Subunit that macrolides act on?
50s
What parameter should be closely monitored during the use of Aminoglycosides?
Renal function
MOA of tetracylines?
Inhibits aminoacyl transfer RNA
Spectrum of tetracylines?
Broad
Chlortetracyclines are used in what animals?
Food animals
MOA of macrolides?
inhibit translocation of ribosome