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FIU - COX/LOX drugs
COX/LOX drugs
16
Pharmacology
Graduate
12/15/2011

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Cards

Term
what is the function of COX? LOX?
Definition
COX converts arachidonic acid to prostaglandins, prostacyclins and thromboxanes
LOX converts arachidonic acid to leukotrienes
Term
NSAID side effects?
Definition
GI tract damage
bleeding
DECREASED renal perfusion
Term
salicylic acid
Definition
Aspirin
irreversible inhibitor of COX
good in low doses
SEs - aspirin asthma, rye syndrome, NSAID SEs
Term
acetyc acid/phenylacetic acid
Definition
NSAID
Term
Diclofenac
Definition
NSAID
favored by orthopedics
Term
Ketorolac
Definition
NSAID
very potent
i.v. administered, used in anesthesia
Term
proprionic acid
Definition
NSAID
Ibuprofin
Term
celecoxib
Definition
COX II inhibitor
only one still on the market
Term
why were most "-coxibs" removed from the market
Definition
they caused cardiovascular thrombotic events, MI, and stroke
Term
Acetaminophen/Paracetamol; what causes toxicity?
Definition
antipyretic and mild analgesic
NOT an anti-inflammatory - no peripheral COX inhibition
-GSH deficiency prevents conversion of toxic metabolite to nontoxic -> liver necrosis
Term
N-acetyl-cysteine
Definition
used for acetaminophen overdose to ensure enough GSH in liver
*must give with alpha-1 agonist to combat vasodilation
Term
Metamizol or Dipyrone
Definition
same mode of action as acetaminophen
antipyretic, STRONG analgesic, NO anti-inflammatory effect
Relaxes smooth muscle - spasmolytic effect, good for kidney and gallbladder stones
-if given in i.v. bolus can cause serious drop in BP
Term
Zileuton
Definition
NSAID
LOX inhibitor
indicated for asthma
only one in USA
Term
"-lukast"
Definition
Leukotrine receptor antagonist (LT-RA)
Term
"-leuton"
Definition
LOX inhibitors
Term
what cleaves arachidonic acid from cell membrane?
Definition
Phospholipase A2 (PLA2)
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