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41 Cards in this Set
- Front
- Back
Celecoxib, rofecoxib
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Selective COX 2 inhibitors
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Indomethacin, etodolac
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Acetic acid derivatives
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Prototype NSAID to which others are measured
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Indomethacin
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Potent COX 1 and 2 blocker
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Indomethacin
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High incidence of GI ulceration
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Indomethacin
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Semi selective COX 1,2 inhibitor. Will still produce GI effects at high doses.
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Etodolac
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Typical NSAIDS with short DOA
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Fenamates
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Mefanamic acid
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Fenamate class
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Not recommended for use in children or pregnant women
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Fenamates
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Good analgesic properties, poor anti-inflammatory effects
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Ketorolac
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Enolic acid class:
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Meloxicam
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Relatively COX 2 selective, close to celecoxib
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Meloxicam
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Greater COX 2 potency than most traditional NSAIDs
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Diclofenac
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Potentially less GI toxicity than traditional NSAIDS
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Diclofenac
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Potentially greater cardiac toxicity than traditional NSAIDS
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Diclofenac
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Diclofenac + misoprostol
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Arthrotec
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ASA intolerant people should not take:
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Ibuprofen
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Representative propionic acid derivative:
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Ibuprofen
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GI bleeding, decreased renal function, hepatitis, edema
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Ibuprofen adverse effects
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COX 2 inhibitors are approved for:
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Dysmenorrhea, OA, RA, acute post op pain
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COX 2 inhibitors are contraindicated in _____ allergy and _____ of pregnancy
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ASA; 3rd trimester
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Advantage of COX 2 inhibitors:
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Less GI ulcers, less effect on platelets and bleeding time
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COX 2 disadvantage:
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No more effective as analgesics than nonselective COX inhibitors
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Platelet aggregation promoter present in platelets that is not affected by COX 2 inhibitors
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Thromboxane A2
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Platelet aggregation inhibitor present in endothelium selectively suppressed by COX 2 inhibitors
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Prostacyclin (PGI2)
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COX 2 inhibitors: shifts ratio of TXA2/PGI2 toward exaggerated :
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Thrombotic response
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COX 2 inhibitors: higher dose and longer duration of tx increase:
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CV and renal toxicity
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No anti-inflammatory or anti-thrombotic effects
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Acetaminophen
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Weak prostaglandin inhibitor
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Acetaminophen
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Does not affect uric acid levels
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Acetaminophen
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Tylenol toxicity doses:
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10 g causes injury; 15 g probably fatal
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The intermediate metabolite of tylenol is:
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Toxic to the liver if it can not be cleared fast enough
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Initial tylenol OD s/s
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N/V, diarrhea, abd pain
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Progressive s/s of tylenol OD:
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Elevation of SGOT, LDH, and PT
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End s/s of tylenol OD:
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Renal failure d/t ATN
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Tylenol: half life of drug increases with:
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Liver damage
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Tylenol metabolism: Secondary metabolic pathway is via ______ which transform it to N-acetyl-benzoquinoneimine
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CYP enzymes
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Tylenol OD: do not administer _____
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Emetics
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Tylenol OD: give ____
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Activated charcoal
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____ helps the body detoxify the hepatotoxic metabolite by restoring depleted _______ levels (gives more precursors)
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NAC/ glutathione
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If tylenol ingestion is significant, begin ______ administration
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N-acetylcystine
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