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natural penicillin
narrow (gram +)
gram + bacterial infections, UTIs
GI upset, hypersensitivity reactions
excreted into urinary tract in pure form
penicillin G
drug class
spectrum
used for…
side effects
special note
potentiated penicillin
broad
general bacterial infections, UTIs
GI upset, allergic reactions
amoxicillin & clavulanic acid
drug class
spectrum
used for…
side effects
cephalosporin
broad
skin, soft tissue, and urinary infections, pre / peri-operatively for sx
GI upset (PO), phlebitis & myositis (IM & IV)
give cefazolin very slowly IV (over 10-15 minutes)
cefpodoxine & cefazolin
drug class
spectrum
used for…
side effects
special note
aminoglycoside
narrow (mostly gram -)
gram - infections, topical infections
nephrotoxic, ototoxic
usually topical due to toxicity, but can be given IV
gentamicin & neomycin
drug class
spectrum
used for…
side effects
special note
tetracycline
broad
bacterial & rickettsia infections
nausea, V/D, renal damage, anxiety (horses & humans), anaphylaxis, hypotension, shock
doxycycline
drug class
spectrum
used for…
side effects
macrolide
broad
general bacterial infections, particularly in GI tract
rare, occasional GI upset
tylosin & erythromycin
drug class
spectrum
used for…
side effects
lincosamide
narrow (gram +)
oral, skin, respiratory, kidney, and uterine infections
GI upset, infection site pain, mildly nephrotoxic
clindamycin
class
spectrum
used for…
side effects
sulfonamide
broad
GI & urinary infections
crystalluria, keratoconjunctivitis, skin rash, blood imbalances
trimethoprim-sulfa
drug class
spectrum
used for…
side effects
fluoroquinolones
broad
serious infections
rare, but include lesions in cartilage in growing dogs, crystalluria, blindness in cats, and teratogenic in pregnant animals
marbofloxacin (Zeniquin) is safe in cats
enrofloxacin & marbofloxacin
drug class
spectrum
indicated for…
side effects
special note
nitroimidazole
broad
canine diarrhea
anorexia, V/D, CNS signs, teratogenic
metronidazole
drug class
spectrum
indicated for…
side effects
imidazole antifungal
superficial & deep mycoses
rare, slightly hepatotoxic & cardiotoxic - itraconazole is safer
some action on adrenal glands, so sometimes adjuncts for adrenal disease (Cushing’s disease)
ketoconazole & itraconazole
drug class
indicated for…
side effects
special note