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318: Ch 73 Gout
Drugs for Gout
Question | Answer |
---|---|
what are 2 characteristic traits of Gout? | Gout is a recurrent inflammatory disorder characterized by HYPERURICEMIA and episodes of SEVERE JOINT PAIN |
what are 2 potential causes for Gout? | (1) Excessive production of uric acid. (2) Impaired excretion of uric acid (kidney dysfunction) |
Name 4 s/s of gout. | pain, swelling, redness, warmth (HOT) |
what lab values do you look at to distinguish Gout from cellulitis? | Uric acid vs WBC |
When do you use short term/long term gout drugs? | LONG TERM >3 attacks/year. SHORT TERM <3 attacks per year |
What 3 NSAIDs are used for Gout? | Indomethacin, Naproxen, Voltaren |
When glucocorticoids are used for gout, what are the administration routes? | PO [Prednisone] or IM |
Are glucocorticoids used for acute gouty attacks in gout or long term? | Glucocorticoids are used for acute gouty attacks |
who should NOT take glucocorticoids? | Diabetics (hyperglycemia) |
What is the name of the drug that is SPECIFIC for gout? | Colchicine |
What is special about Colchicine? | Colchicine is an anti-inflammatory agent that is ONLY SPECIFIC for GOUT! |
is Colchicine used for acute gouty attacks or as prophylaxis? | BOTH!!! large doses relieve gouty attacks. lower doses can decrease frequency/intensity of acute flair ups. |
What are the adverse effects of Colchicine? | GI toxicity (principle adverse effect) n/v/d/abdominal pain. if GI symptoms develop, DC the drug IMMEDIATELY! [risks include bone marrow suppression, renal failure, hepatic necrosis, seizures and death] |
By what route is Colchicine administered? | IV or PO (readily absorbed PO) |
Colchicine and pregnancy? | probably not. [Oral = Category C. IV = Category D] |
which drugs are used for acute gouty attacks? | NSAIDs(first line), Glucocorticoids, colchicine |
What is the uric acid level in a gout pt? men/women | men >7. women >6 |
what drugs are used for prophylactic treatment of gout? | Allopurinol [Zyloprim], Febuxostat [Uloric] |
What is the drug of choice for chronic tophaceous gout? | Allopurinol [Zyloprim] |
What is the mechanism of action for Allopurinol? | Inhibits uric acid formation. Reverses hyperuricemia (Decreases the risk for nephropathy from deposition of urate chrystals in the kidneys) |
What is Allopurinol used for? | Prophylactic treatment for gout |
What are the side effects of Allopurinol? | Hypersensitivity syndrome (rash, fever, eosinophillia, dysfunction of liver/kidneys, n/v/d, Neuro effects (drowsiness, headache, metallic taste) PROLONG use -> Cataracts |
route of administration for ALlopurinol: | oral |
drug interactions for allopurinol | Allopurinol inhibits hepatic drug-metabolizing enzymes and can DELAY THE INACTIVATION OF OTHER DRUGS (PARTICULAR CONCERN FOR WARFARIN) |
what is the mechanism of action for Febuxostat [Uloric] | lowers urate levels by inhibiting XO |
after starting Febuxostat [Uloric], what should patients be on? | Patients should receive prophylactic NSAIDs or colchicine for up to 6 months after starting this treatment. |
What are the adverse effects of Febuxostat []Uloric] | Liver function abnormalities, n, arthralgia, rash |
administration frequency of Febuxostat | 1x/day |