Anti-inflammatory Flashcards
Aspirin
reversible acetylation of COX
low dose –> COX 1
high dose –> both COX 1 &2
is an ETC uncoupler–> decreasing ATP
What is the treatment of Aspirin overdose?
activated charcoal
alkalization of urine
What are the side effects of Aspirin ?
decrease gastric mucosa--> ulcerations GI bleeding increased bleeding time afferent arteriole vasoconstriction renal papillary necrosis increase lithium concentration hyperkalemia- hypoaldosteronism
metabolic acidosis with respiratory alkalosis
tinnitus
What is the adverse affect in Children with viral illnesses?
Reyes syndrome -encephalopathy , hepatic dysfunction
Who is contraindicated for NSAIDS
renal insufficiency
pregnant -trimester 3 ( indomethacin, ibuprofen )
Celecoxib
selective COX 2 inhibitor
decreases GI ulcers and bleeding
increases platelet aggregation
is a sulfa drug
Acetaminophen
inhibits COX 2
is antipyretic & analgesic
no anti platelet action, safe in asthma, safe in gout, no uncoupling
What is the side effect with acetaminophen ?
overdose
hepatotoxic - P450 inducer,, alcohol, phenobarbital
NAPQI–>glutathione ( acetaminophen inhibits this process) –> increased NAPQI which causes damage to lier cells
What is the treatment for acetaminophen toxicity ?
N- acetylcyesteine (first 10 hrs)
charcoal
What treats acute gout?
NSAIDS
Glucocorticoids
Colchicine
Allopurinol & Febuxostat
inhibit xanthine oxidase
for long term use
tx: leech Nyann syndrome
Colchicine
tx: pain
microtubule polymerization that disrupts cytoskeleton of neutrophils –> decreased migration , phagocytosis, degranulation
What are the side effects of colchicine?
Diarrhea & vomiting
Characteristics of pseudo-gout
increase calcium pyrophosphate
positive rhomboid shaped bifringent crystals
What other disease cause uric acid crystals?
lymphomas
lymphoblastic leukaemia