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Pharmacology Exam 2
Pharmacology exam 2
18
Pharmacology
10/26/2009

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Term
HMWK - High Molecular Weight Kininogen is what? Co-activates what?
Definition
Is a bradykinin precursor and co-activates Factor XII
Term
Kalikrein
Definition
In the presence of appropriate anionic surface and HMWK activates XII, generates bradykinin, activates plasminogen to plasmin, and pro-UPA to UPA.
Term
von Williebrand Factor
Definition
Adhesive platelet ligand that tethers platelet to exposed collagen at the sites of vascular injury (Primary hemostasis). Also a carrier protein for factor VII (secondary hemostasis).
Term
Used to assess the activity of K-dependent clotting factors (II,VII,IX,X). Shows the extent of Vitamin K depletion from Warfarin Therapy.
Definition
Prothrombin time (PT)
Term
Definition
Class: anticoagulant
MOA: Vitamin K epoxide reductase inhibitors (2)
Mechanism of action: inhibition of the redox cycling of vitamin K (by VKOR), which leads to decreased production of prothrombin & other clotting factors
Chemical class: coumarin
Second most common drug related ER visits
Assay Patients CYP2C9 and VKORC1 genotype
Term
Definition
UFH
Anticoagulant
CC: Polysaccharide
Negative sulfate group required for binding to antithrombin
Term
LMWH
Definition
LMWH
Smaller size translates to better selectivity for Xa and more favorable PK and PD properties
Term
Definition
Argatroban
Therapeutic class (TC): anticoagulants
Pharmacological class (PC/MOA): direct inhibition of thrombin
Chemical class: most are peptides/proteins
Agent: Argatroban (Novastan®): small molecule (non-oral) peptidomimetic that reversibly inhibits thrombin
NONORAL
Term
Definition
Aspirin
Therapeutic class (TC): anticoagulant
Pharmacological class (PC/MOA): COX-1 inhibitor
Chemical class: varies
Antiplatelet agents: Aspirin (acetylsalicylic acid, ASA)
Term
Definition
Eptifibatide
Therapeutic class (TC): anticoagulant
Pharmacological class (PC/MOA): GPIIa/IIIB antagonist
Chemical class: peptidomimetic
Agent: Eptifibatide (Integrilin®)
Term
Definition
Clopidogrel
Therapeutic class: anticoagulants
Pharmacological class (PC/MOA): P2Y12 (purinergic) receptor antagonists
Chemical class: thienopyridines
Agent: Clopidogrel bisulfate (Plavix®)

Major DDIx problems with CYP2C19 Substrates/inhibitors
EX: PPI
Term
Definition
Dipyramidole
Therapeutic class (TC): anticoagulant
Pharmacological class (PC/MOA): inhibition of PDE-3 isozyme
Chemical class: varies
Agent: Dipyridamole (Persantine®, part of Aggrenox®)
Term
Definition
Cholestyramine
Bile acid Resin/ Sequesterant
CC:Anion-Exchange resins
Coselevam may be preferred
Term
Definition
Simvastatin
HMG-CoA Reductase
CC: 7 substituted 3,5 dihydroxyhepatanoic acid
Prodrug - very lipophilic and may have CNS effects
Hydroxyl very important
Term
Definition
Atorvastatin
HMG-CoA Reductase Inhibitor
7 substituted 3,5 hepatanoic acid
Hydroxyl very important
Term
Definition
Niacin
Niacin Receptor Agonist (NICR1,DGAT-2I)
CC: Nicotinic Acid
SAR: Carboxylic Acid
Term
Definition
Fenofibrate
PPAR- alpha agonist
CC: Phenoxyisobutyric acid
Isobutyric acid - activity
P-chloro - longer half life
Term
Definition
Gemfibrozil
PPAR-alpha agonist
CC: Phenoxyisobutyric acid
P-cholor derivative have much longer half life