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Published byJuliana Bennett Modified over 8 years ago
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- nonsteroidal anti-inflammatory drugs (NSAIDs), are used to combat inflammation. - Their antiinflammatory action equals that of aspirin. - have analgesic and antipyretic effects. - Unlike aspirin’s effects, the effects of NSAIDs on platelet aggregation are temporary. - diclofenac, fenoprofen, ibuprofen, indomethacin, ketoprofen, ketorolac,meloxicam, naproxen, piroxicam. sh.alinia2
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- All NSAIDs are absorbed in the GI tract. - They’re mostly metabolized in the liver - and excreted primarily by the kidneys. sh.alinia3
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- Two isoenzymes of cyclooxygenase, known as COX-1 and COX-2,convert arachidonic acid into prostaglandins. - NSAIDs block both COX-1 and COX-2. - The prostaglandins produced by COX-1 maintain the stomach lining,while those produced by COX-2 cause inflammation. - That’s why the nonselective NSAIDs, which inhibit COX-1 along with COX-2, commonly cause GI adverse effects. sh.alinia4
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- are used primarily to decrease inflammation. - They’re secondarily used to relieve pain, - but are seldom prescribed to reduce fever. - These drugs are particularly useful in the treatment of osteoarthritis, rheumatoid arthritis, acute pain, primary. - acute gouty arthritis. - dysmenorrhea (painful menstruation), migraine headaches bursitis and tendonitis, mild to moderate pain. sh.alinia5
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abdominal pain, bleeding, anorexia, diarrhea, nausea, ulcers, and liver toxicity. drowsiness, headache, dizziness, confusion, tinnitus, vertigo, and depression. hypertension, heart failure, and pedal edema. sh.alinia6
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- Phenazopyridine hydrochloride, an azo dye used in commercial coloring, produces a local analgesic effect on the urinary tract. Pharmacokinetics - When taken orally, the liver metabolizes 35% of phenazopyridine. - The remainder is excreted unchanged in the urine, causing the patient’s urine to turn an orange or red color. sh.alinia7
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Pharmacodynamics: Phenazopyridine is taken orally and produces an analgesic effect on the urinary tract usually within 24 to 48 hours after therapy begins. Phamacotherapeutics: The drug is used to relieve such symptoms as pain, buring, urgency,and frequency associated with urinary tract infections. sh.alinia8
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If the drug accumulates,the patient’s skin and sclera may assume a yellow tinge. If this occurs,the drug may need to be discontinued. Acute renal or hepatic failure may occur. sh.alinia9
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