NSAIDs Flashcards
NSAIDs MOA
inhibit PG synthesis by blocking COX1 (gastric mucosa, platelet aggregation) and COX2 (inflammation, fever)
NSAIDs use
analgesic
anti-inflammatory
antipyretic
inhibit platelet aggregation
NSAID SE
nausea/vomiting GI ulceration anti-coagulant renal injury pregnancy
aspirin
rapidly absorbed
widely distributed
anticoagulant
aspirin metabolism
plasma, liver
aspirin MOA
irreversibly inhibits COX1 and COX2
reduce TxA2 synthesis
reduce PGI synthesis
aspirin SE
hypersensitivity GI irritation/ulcers liver toxicity acute renal failure Reye's syndrome (use acetaminophen)
aspirin OD
salicylism: dizziness nausea/vomiting tinnitus hyperventilation hyperthermia
tx: emesis/lavage, alkalinize urine
aspirin contraindications
hypersensitivity peptic ulcer children pregnancy elderly
aspirin Rx interactions
P450 enzymes glucuronidation alcohol corticosteroids NSAIDs oral hypoglycemics oral anticoagulants anti-epileptics systemic antacids
indomethACin use
acetic acid
RA
osteoarthritis
ankylosing spondylitis
acute gout
indomethACin SE
closure of patent ductus arteriosis
GI ulcer
severe frontal headache
hypersensitivity
sulindAC
acetic acid
prodrug
keterolAC use
acetic acid
moderate/severe pain
keterolAC SE
GI ulcer
don’t take for more than 5 days
diclofenAC use
acetic acid
RA osteoarthritis
solar keratoses
acute pain
pts with high risk ulcers
ibuPROfen
propionic acid
well tolerated
low SE
ibuPROfen use
mild/moderate pain
ibuPROfen SE
GI irritation
naPROxen
propionic acid
long halflife (14hr) dose: 2x/day
ketoPROfen
propionic acid
short halflife
dose: 3-4x/day
fenoPROfen
pripionic acid
short halflife (2hr) dose: 3-4x/day
SE: headaches 15%
contraindication: impaired renal function
oxaPROzin
propionic acid
long halflife
dose: 1x/day
meFENamic acid
fenamate
analgesic
use < 1 week
SE: diarrhea 25%
contraindication: impaired renal function