About this Study Set
This study set covers Pharmacology through
25 practice questions.
A rigorous examination of pharmacological principles, drug mechanisms, and metabolic pathways. Every question includes the correct answer so you can learn as you go — pick any format above to get started.
Questions & Answers
Browse all 25 questions from the
Advanced Pharmacology Mastery study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
Which enzyme is primarily responsible for the phase I metabolism of approximately 25% of all clinically used drugs?
-
A
CYP2D6
-
B
CYP3A4
-
C
CYP2C9
-
D
CYP1A2
2
Which class of antibiotics acts by inhibiting bacterial DNA gyrase and topoisomerase IV?
-
A
Macrolides
-
B
Aminoglycosides
-
C
Fluoroquinolones
-
D
Tetracyclines
3
What is the primary mechanism of action of the drug Vigabatrin in the treatment of epilepsy?
-
A
GABA transaminase inhibition
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B
Sodium channel blockade
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C
NMDA receptor antagonism
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D
Calcium channel modulation
4
Which medication is a selective antagonist at the endothelin-1 receptor used to treat pulmonary arterial hypertension?
-
A
Bosentan
-
B
Sildenafil
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C
Epoprostenol
-
D
Iloprost
5
What is the specific target of the antifungal agent Terbinafine?
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A
Ergosterol synthesis
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B
Squalene epoxidase
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C
Chitin synthase
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D
Beta-glucan synthesis
6
Which neurotransmitter is primarily synthesized from the amino acid L-tyrosine?
-
A
Serotonin
-
B
Histamine
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C
Dopamine
-
D
Acetylcholine
7
Which agent is a selective peripheral kappa-opioid receptor agonist used to treat pruritus in chronic kidney disease?
-
A
Naloxegol
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B
Methylnaltrexone
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C
Difelikefalin
-
D
Alvimopan
8
Which class of diuretics acts primarily by inhibiting the Na+-K+-2Cl- symporter in the thick ascending limb of the loop of Henle?
-
A
Thiazides
-
B
Potassium-sparing diuretics
-
C
Loop diuretics
-
D
Carbonic anhydrase inhibitors
9
What is the primary mechanism of action of Omalizumab?
-
A
IgE monoclonal antibody
-
B
TNF-alpha inhibitor
-
C
IL-5 receptor antagonist
-
D
Leukotriene receptor antagonist
10
Which substance is a potent agonist at the GABAB receptor used in the treatment of spasticity?
-
A
Baclofen
-
B
Tizanidine
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C
Dantrolene
-
D
Cyclobenzaprine
11
Which drug belongs to the class of BCR-ABL tyrosine kinase inhibitors used in chronic myeloid leukemia?
-
A
Imatinib
-
B
Rituximab
-
C
Trastuzumab
-
D
Bevacizumab
12
What is the primary site of action for the class of drugs known as glitazones (thiazolidinediones)?
-
A
PPAR-gamma
-
B
GLP-1 receptor
-
C
SGLT2 protein
-
D
DPP-4 enzyme
13
Which medication is classified as a selective serotonin and norepinephrine reuptake inhibitor (SSNRI)?
-
A
Fluoxetine
-
B
Duloxetine
-
C
Amitriptyline
-
D
Escitalopram
14
What is the active metabolite of the prodrug Clopidogrel?
-
A
Thiol derivative
-
B
Carboxylic acid
-
C
Glucuronide conjugate
-
D
Sulfoxide derivative
15
Which drug is an irreversible inhibitor of the H+/K+-ATPase pump in gastric parietal cells?
-
A
Famotidine
-
B
Omeprazole
-
C
Misoprostol
-
D
Sucralfate
16
Which factor is the primary substrate for the vitamin K-dependent gamma-carboxylation reaction?
-
A
Factor VII
-
B
Factor VIII
-
C
Factor V
-
D
Factor XI
17
What is the primary mechanism of action of the anticoagulant Rivaroxaban?
-
A
Direct thrombin inhibition
-
B
Factor Xa inhibition
-
C
Antithrombin III potentiation
-
D
Vitamin K epoxide reductase inhibition
18
Which medication is a selective inhibitor of the cardiac funny current (If) channel?
-
A
Ivabradine
-
B
Verapamil
-
C
Amiodarone
-
D
Dofetilide
19
Which agent is a specific antidote for organophosphate poisoning, used to regenerate acetylcholinesterase?
-
A
Atropine
-
B
Pralidoxime
-
C
Physostigmine
-
D
Edrophonium
20
Which drug is a partial agonist at the alpha4beta2 nicotinic acetylcholine receptor used for smoking cessation?
-
A
Varenicline
-
B
Bupropion
-
C
Nortriptyline
-
D
Nicotine
21
Which receptor type does the drug Ondansetron selectively antagonize?
-
A
5-HT3
-
B
5-HT1A
-
C
D2
-
D
H1
22
What is the primary mechanism of action of the anti-obesity drug Orlistat?
-
A
Lipase inhibition
-
B
Appetite suppression
-
C
Thermogenesis activation
-
D
Glycogenolysis inhibition
23
Which antibiotic is known to cause grey baby syndrome due to immature glucuronidation pathways?
-
A
Chloramphenicol
-
B
Tetracycline
-
C
Sulfonamides
-
D
Gentamicin
24
What is the target of the monoclonal antibody Infliximab?
-
A
TNF-alpha
-
B
IL-1
-
C
IL-6
-
D
CD20
25
Which drug acts as an agonist at the peroxisome proliferator-activated receptor alpha (PPAR-alpha) to lower triglycerides?
-
A
Gemfibrozil
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B
Atorvastatin
-
C
Ezetimibe
-
D
Cholestyramine
