Shared Flashcard Set

Details

Opt 222 NSAIDS
Chang
41
Other
Not Applicable
02/26/2008

Additional Other Flashcards

 


 

Cards

Term

What is the major side effect of fenamate?

Definition

diarrhea

Term
What are pyrazoles used in the treatment of?
Definition
Gout and rheumatoid arthritis
Term
What property of pyranozoles limit their usefulness?
Definition
toxicity
Term
What activity is greatest in phenylbutazone, antipyretic, antiinflammatory, or analgesic?
Definition

antiinflammatory

Term
What are the most serious adverse effects of pyridazoles?
Definition
agranulocytosis and aplastic anemia
Term
Name one ocular effect of pyrazoles?
Definition
blurred vision
Term
What are two potential side effects of pyrazoles that result from decreased uptake of iodide by the thyroid gland?
Definition
goiter and myxedema
Term
How long is Tx with pyrazole permitted?
Definition
Up to one week with frequent blood tests due to its potential adverse effects
Term

What three conditions is diclofenac approved in the treatment of?

Definition
  1. arthritis
  2. osteoarthritis
  3. ankylosing spondylitis
Term
Where does diclofenac accumulate?
Definition
the synovial fluid
Term
Which is the most potent, indomethacin, naproxen, or diclofenac?
Definition
diclofenac
Term
Where is diclofenac primarily excreted?
Definition
the urine
Term
What other route of administration can ketorolac be given than oral?
Definition
intramuscularly for post op pain
Term
How is ketorolac administered for topical allergies?
Definition
topically
Term
Where is ketorolac metabolized?  Where is the drug and its metabolites excreted?
Definition
  1. liver
  2. urine
Term
What enzyme act on membrane phospholipids to produce arachidonic acid?
Definition
phospholipase A2 and other acyl hydrolases
Term
What two mediators stimulate the formation of arachidonic acid?
Definition
bradykinin and angiotensin
Term

What is the pKa range of most NSAIDS?  Are they readily absorbed at gastric pH?

Definition
  1. pKa-3-5
  2. They're readily absorbed at gastric pH and thus may contribute to GI toxicity.
Term
What enzyme do corticosteroids inhibit?
Definition
phospholipase A2
Term
Which enzyme is responsible for physiologic production of prostanoids?
Definition
COX-1
Term
Which enzyme is responsible for elevated production of prostanoids that occurs in sites of disease and inflammation?
Definition
COX-2
Term

Which COX enzyme has a larger and more flexible substrate channel and has a larger space at the site where inhibitors bind?

Definition

COX-2, hence some drugs can be more selective for COX-2 than COX-1

Term
Do prostaglandins increase or decrease intracellular Calcium?
Definition

increase

Term
What percent of patients show an intolerance to aspirin?
Definition
15%
Term
What is the weakest action of acetaminophen, antipyretic, anti-inflammatory, or analgesic?
Definition
anti-inflammatory
Term
Does aspirin bind reversibly or irreversibly to COX-1 and COX-2?
Definition
irreversibly
Term
What is the least effective action of diflusinal, analgesic, antipyretic, or anti-inflammatory?
Definition
antipyretic because it does not distribute into the CNS and thus has no effect on fever
Term
How much more potent is diflusinal as an analgesic and anti-inflammatory agent than other NSAIDs?
Definition
3x-4x
Term
Where in the body do NSAIDs block prostaglandin synthesis?
Definition
  1. thermoregulatory center in the hypothalamus
  2. peripheral target sites
Term
How does PGE2 work?
Definition
PGE2 sensitizes the nerve endings to bradykinin, histamine, and other mediators released by the inflammatory process.
Term
For what type of pain are NSAIDs effective in treating?
Definition
Mild to moderat pain arising from the peripheral structures rather than from the visceral structures
Term
For what type of pain are NSAIDs combined with opioids effective in treating?
Definition
pain in malignancy (terminal cancer)
Term
For what type of pain treatment are NSAIDs superior to opiods?
Definition
pain due to the inflammatory process
Term
Low doses of aspirin cause respiratory _____ while higher doses act on the respiratory center in the medulla causing respiratory______.
Definition
acidosis, alkalosis
Term
Which prostaglandins incresase secretion of mucus in the stomach and small intestine?  Which prostaglandin inhibits gastric acid secretion?
Definition

1.  PGE2 & PGF2

PGI2

Term
What drug is used to treat the adverse effects of NSAIDs in the stomach?
Definition
misoprostol, a PGE1 derivative
Term
What prostaglandin decreases platelet aggregation?
Definition
prostacyclin (PGI2)
Term
What prostaglandin promotes platelet aggregation?
Definition
Thromboxane (TXA2)
Term
Which prostaglandins are responsible for maintaining renal blood flow especially in the presence of circulating vasoconstrictors?
Definition
PGE2, PGI2
Term
What is a potential negative effect of PGE2 and PGI2 inhibition?
Definition
Retention of Na+ and H2O and edema and hyperkalemia in some patients
Term
All NSAIDs can cause interstitial nephritis except?
Definition
aspirin (ASA)
Supporting users have an ad free experience!