NSAIDs Flashcards
Asprin aka
acetylsalicylic acid
Acetylsalicylic acid adverse effects
prolonged bleeding time
GI irritant - not to be used in gastric ulcerative conditions
Acetylsalicylic acid metabolism
metabolized to salicylic acid in the liver
Consideration when administering acetylsalicylic acid
consider when last dose was before performing surgery
do not use in patients with possible spinal cord trauma
Phenylbutazone MOA
non-selective COX inhibitor
Phenylbutazone therapeutic uses
anti-inflammatory in horses and dogs
osteoarthritis
laminitis
colic
Phenylbutazone adverse effects
hepatic toxicity
GI ulceration
bone marrow hypoplasia
renal papillary necrosis
more toxic to foals
promotes Na+ and water retention - caution in cardiovascular patients
depression in dogs
Phenylbutazone metabolism
metabolized in liver to oxyfenbutazone
Is phenylbutazone okay to use in dairy cattle?
no - prohibited in dairy cows older than 20 months
which can cross the placenta and be detected in milk
Flunixin megluamine MOA
non-selective COX inhibitor
blocks prostanoid synthesis related to endotoxemia
Flunixin megluamine therapeutic use
horses: musculoskeletal anti-inflammatory, colic, endotoxic shock
cattle: acute mastitis, acute pulmonary emphysemia, endotoxemia
dogs: septic shock
swine: control pyrexia associated with respiratory disease
Flunixin megluamine withdrawal period in cattle and swine
4 days in cattle
12 days in swine
Can flunixin megluamine be used in dairy cows and veal calves?
NOOOO
Naproxen MOA
non-selective COX inhibitor
Naproxen therapeutic use
myositis
soft-tissue inflammation
good for horses
Naproxen metabolism
enterohepatic circulation - prolonged elimination half-life
Ibuprofen MOA
non-selective COX inhibitor
Ibuprofen adverse effects
NOT recommended for dogs
GI disturbances
vomiting
Meclofenamic acid MOA
NSAID
slow onset
Meclofenamic acid therapeutic uses
preferred for horses
Ketoprofen adverse effects
GI upset
nephritis
Ketoprofen therapeutic uses
used in horses, cattle, swine, dogs, cats
anti-inflammatory
analgesic
anti-pyretic
horses: musculoskeletal disorders
Ketoprofen MOA
inhibits COX and LOX
inhibits bradykinin
Diclofenac therapeutic use
horses: osetoarthritis in limbs
topical cream
Carprofen MOA
COX-2 inhibitor
inhibits phospholipase - blocks release of arachidonic acid
Carprofen therapeutic use
for dogs, cats, horses, cattle
osteoarthritis
post-op pain
Carprofen adeverse effects
hepatoxic
Carprofen metabolism
metabolized in the liver
excreted in the feces
enterohepatic recycling
Meloxicam MOA
COX-2 inhibitor
Meloxicam therapeutic use
Dogs: osteoarthritis
Cats: post-op
pain and inflammation
associated with
orthopedic surgery,
ovariohysterectomy,
castration (pain for
surgeries)
Piroxicam MOA
inhibits new blood vessel formation
Piroxicam therapeutic use
osteoarthtitis in dogs
transitional cell tumors
musculoskeletal inflammatory conditions
Deracoxib MOA
COX-2 inhibitor
Dercoxib therapeutic use
osteoarthitis
post-op orthopedic and dental pain
mostly used in dogs
Dercoxib bioavailability
imoroved when administered with food
Firocoxib MOA
COX-2 inhibitor
Firocoxib therapeutic use
Dog: inflammation associated
w/ osteoarthritis, and
soft-tissue surgery
Horses: control pain and
inflammation with
osteoarthritis
—use
recommended for 14
days
How old must a dog be in order to be prescribed firocoxib?
for use in dogs weighing more than 12.5lbs and 7months of age or older
Robenacoxib aka
ONSIOR
Robenacoxib MOA
COX-2 inhibitor
Robenacoxib therapeutic use
post-op pain and inflammation
What animals is Robenacoxib approved for use in?
dogs and cats
How old must a cat be in order to be prescribed robenacoxib?
for use in cats weighing more than 5.5lbs and are 4 months of age or older
How long can cats be on robenacoxib?
no longer than 3 days
Mavacoxib MOA
COX-2 inhibitor
Mavacoxib therapeutic use
degenerative joint disease
Half-life and dosing of mavacoxib
half-life of 17 days
do not exceed 7 doses
Metabolism of mavacoxib
biliary excretion
Tepoxalin MOA
COX and LOX inhibitor
Tepoxalin therapeutic use
dogs: osteoarthitis
Tepoxalin metabolism
metabolite = tepoxalin pyrazol acid
half-life 12-14 hours
Etodolac MOA
COX-2 inhibitor
inhibit macrophage chemotaxis
Etodolac therapeutic use
dogs: osteoarthitis
Acetaminophen therapeutic use
analgesic
antupyretic
Acetaminophen adverse effects
toxicity - emergency condition
cats: heptatoxic, methemoglobinemia
Acetaminophen metabolism
toxic metabolite = NAPQI - CYP420 enzyme causing Heinz bodies = hepatotoxic
Cimetidine MOA
inhibut metabolism of acetaminophen
H2 blocker
Cimetidine therapeutic use
emergency treatment of acetaminophen toxicity
N-acetly-cysteine MOA
precursor of glutathione
conjugates NAPQI - facilitates elimination
N-acetly-cysteine therapeutic use
emergency treatment of acetaminophen toxicity
When should N-acetly-cysteine be administered?
must be given before liver damage occurs