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Structural Specificity of Drugs in Relation to Pharmacogenet
Biochemical and Molecular Principles of Drug Action Biochemical and Molecular Principles of Drug Action
17
Pharmacology
Professional
04/18/2012

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Cards

Term
Which of the following polymorphic enzymes has the greatest effect on the activity of Plavix?
Definition
A. CYP2C19
Term
Which of the following is not a prodrug?
I. Clopidogrel
II. Parsugrel
III. Ticagrelor
Definition
C. Only III
Term
What factors should be considered when choosing drugs from the same class?
Definition
A. Metabolism
B. Duration of action
D. A and B
Term
Why is amlodipine the preferred choice of CCB’s among physicians?
Definition
A. Has less first pass metabolism
Term
Lack of which enzyme can aggregate GI side effects such as diarrhea for the drug irinotecan?
Definition
B. UGTA1
Term
Which of these drug classes will precipitate hemolytic anemia in a G6PD patient?
Definition
A. Antimalarial
B. Sulfonamides
D. A and B
Term
Which of these choices is a drug induced adverse effect in patients with G6PD deficiency?

I. Hemolytic anemia
II. Liver toxicity
III. Colon Cancer
Definition
D. I and II
Term
It is known that hydrophilic statins are the most effective on organic anion transporters (OATs). All of the following are considered hydrophilic statins except
Definition
A. Lovastatin
Term
We have a patient that was prescribed a low dose of warfarin. Describe the patients VKOR activity and their possible ethnicity
Definition
C. Low VKOR activity; Asian
Term
What makes Clopidogrel a poor drug choice for all populations compared to Parsugel and Ticagrelor?
Definition
A. Clopidegrel can take two inactive metabolite pathways that are affected by metabolic profile.
Term
1A2
Definition
Activation of carcinogens
Induced by smoking
Term
2A6
Definition
Metabolizes procarcinogens, nicotine, naproxen
2% of Caucasian and 20% of Asian population are poor metabolizers
Term
2B6
Definition
Metabolizes non-nuleoside reverse transcriptase inhibitor (e.g. Efavirenz), cylcophosphamide, Bupropion ets
Term
2C8
Definition
Metabolizes tricyclic antidepressants, diazepam and verapamil
Term
2C9
Definition
Metabolizes warfarin, phenytoin, NSAIDs, fluoxetine etc
Term
2C19
Definition
Metabolizes PPIs, TCAs, clopidogrel, antiepileptics etc
13-23% Asians and 2-6% Caucasians are PMs
Term
2D6
Definition
Metabolizes 21% clinically important drugs
Drugs metabolized 2D6 are rarely metabolized by other CYP isoforms
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