PHARMACOLOGY QUIZZES 17 | Multiple Choice Questions| Medical Exam Preparations

01. Which one of the following drugs belongs to Platelet inhibitors?
A. Warfarin 
B. Folic acid 
C. Hydroxyurea
D. Eptifibatide 
E. Enoxaparin

Answer: D. Eptifibatide 

02. Which one of the following drugs is an anticoagulant?
A. Protamine sulfate
B. Streptokinase
C. Cyanocobalamine
D. Heparin 
E. Vitamin K

Answer: D. Heparin 

03. A drug that is used to treat HIV infections is one of the following?
A. Cladribine
B. Praziquantel 
C. Niclosamide
D. Etidronate
E.  Saquinavir
Answer: E. Saquinavir

04. In the absence of other drugs, drug X causes an increase in heart rate by activating certain “Beta” receptors. However, in the presence of highly effective beta stimulants, drug X causes a dose-dependent decrease in heart rate. Therefore, Drug X should be classified as?
A. Competitive Antagonist
B. Full agonist
C. Inverse agonist
D. Non-competitive antagonist
E. Partial agonist

Answer: E. Partial agonist

05. Which of the following drug is a part of drugs for subcutaneous and systemic mycoses?
A. Ibandronate
B.  Micafungin
C. Capecitabine
D. Miconazole
E. Naftifine

Answer: B. Micafungin

06. Which of the following is not second-generation cephalosporins
A. cefoxitin
B. cefotetan
C. cephadrine
D. cefuroxime

Answer: Cephadrine

07. A drug that is used to treat Cutaneous mycoses is one of the following?
A. Cladribine
B. Oxiconazole
C. Flucytosine
D. Etidronate
E. Itraconazole

Answer: B. Oxiconazole

08. Cefoxitin belongs to the class of following drugs?
A. Antiviral 
B. Antipyretic 
C. Antiprotozoal
D. Antibiotics 
E. Anti-malaria 

Answer: D. Antibiotics

09. Which one of the following drugs is a synthetic analog of guanosine?
A. Amantadine 
B. Oseltamivir
C. Rimantadine 
D. Zidovudine 
E. Ribavirin

Answer: C. Ribavirin 

(Inhibit guanosine triphosphate formation thus prevent viral messenger RNA capping and and blocking RNA-dependent RNA polymerase)

10. Gancyclovir is used to treat one of the following diseases?
A. Viral infection 
B. Blood pressure  
C. Diabetes 
D. Stomach Ulcer  
E. Malaria  

Answer: A. Viral infection

11. Which one of the following drugs causes the accumulation of fat at the base of the neck in a patient (buffalo hump)?

A. Protease inhibitors
B. Integrase inhibitors
C. Nucleoside analogs
D. Both A & B


Answer: A. Protease inhibitors

12. A drug that provokes tachycardia due to decreased peripheral resistance when Alpha receptors are blocked, preventing the vasoconstriction of peripheral blood vessels. Also, increasing cardiac output by blocking the inhibitory presynaptic Alpha-2 receptors in the Heart, is one of the following drugs?
A. Yohimbine
B. Prazosin
C. Phenoxybenzamine
D. Albuterol
E. Dobutamine

Answer: C. Phenoxybenzamine

13. A drug that inhibits the vesicle-associated transport system which transports the Acetylcholine into the storage vesicles is one of the following drugs?

A. Hemicholinium
B. Vesamicol
C. Reserpine
D. Guanethidine
E. Botulinum

Answer: B. Vesamicol

14. One of the following statements about the use of phenoxybenzamine is wrong?
A. Reversible and competitive blocker
B. Provokes reflex tachycardia
C. Used for pheochromocytoma
D. Causes postural hypotension
E. Management of hyperreflexia

Answer: A. Reversible and competitive blocker

15.  Alpha adrenoceptors have the least affinity and show a weak response to one of the following drugs?
A. Norepinephrine
B. Epinephrine
C. Isoproterenol
D. All of the above

Answer: Isoproterenol

16. A drug interferes with the synthesis of the fungal cell wall by inhibiting the synthesis of Beta (1,3)-D-glucan leading to lysis and cell death?

A. Terbinafine
B. Caspofungin
C. Amphotericin B
D. Griseofulvin


Answer: B. Caspofungin 

17. Neostigmine is what type of drug?
A. Short, reversible drug
B. Medium, reversible drug
C. Medium, irreversible drug
D. Short, irreversible drug

Answer: B. Medium,  reversible

18. Following has Only a 10-minute half-life?
A. Nadolol
B. Carvedilol
C. Esmolol
D. Timolol
E. Propranolol

Answer: C. Esmolol

19. Which one of the following drugs has the longest action?
A. Prazosin
B. Terazosin
C. Doxazosin
D. Alfuzosin
E. Tamsulosin

Answer: C. Doxazosin

20. Which of the following is Posterior Pituitary Hormone?
A. Estrogens
B. Urofollitropin
C. Somatropin
D. Growth hormone
E. Vasopressin

Answer: E. Vasopressin


21. Which one of the following adverse effects belongs to nitroglycerin?
A. Dizziness 
B. Edema
C. Throbbing pain 
D. Reflex tachycardia 
E. Methemoglobinemia

Answer: D. Reflex tachycardia 

22. Hypertension, sweating, tachycardia, and tremors are withdrawal effects of the following drug?
A. Phenylephrine 
B. Clonidine 
C. Imidazoline 
D. Dobutamine
E. None of these 


Answer: B. Clonidine 

23. Which hormone has an FSH-like activity & Obtained from the urine of postmenopausal women?
A. Estrogens
B. Urofollitropin
C. Somatropin
D. Growth hormone
E. Vasopressin

Answer: B. Urofollitropin

24. A drug that inhibits replication of the influenza A virus by interfering with viral attachment and uncoating?
A. Acyclovir 
B. Oseltamivir
C. Amantadine
D. Zidovudine 
E. Nevirapine

Answer: C. Amantadine 

Influenza type A only 

25. Atropine & Hyoscine will block all the effects of acetylcholine except:
a) Bradycardia
b) Skeletal muscle contraction
c) Salivary secretion
d) Bronchoconstriction
e) Miosis


Answer: b) Skeletal muscle contraction

26. What is the role of the bretylium drug in adrenergic neurons?
A. Block transport of dopamine into a vesicle
B. Block release of NE from vesicle
C. Block the reuptake of NE
D. Block the COMT

Answer: B. Block release of NE from vesicle

27. Following are the effects mediated by Alpha-2 adrenoreceptors except?
A. Inhibition of NE release
B. Inhibition of acetylcholine release
C. Inhibition of insulin release 
D. Increase release of renin

Answer: D. Increase release of renin

28. A phenazine dye that binds with DNA to prevent it from serving as a template for future DNA replication?
A. Dapsone
B. Streptomycin
C. Clofazimine
D. Capreomycin


Answer: C. Clofazimine

29. Every 4 hours dose of Aspirin for children of 9-12 years of age is following?
A. 160 mg
B. 400 to 480 mg
C. 325 to 650 mg
D. 650 to 1000 mg
E.  1600 mg

Answer: B. 400 to 480 mg

30. Edrophonium is what type of drug? 
A. Medium, reversible drug
B. Short, irreversible drug
C. Medium, irreversible drug
D. Short, reversible drug

Answer: D. Short, reversible drug

31. Which one of the following drugs synergizes with tubocurarine and enhances the blockage of Acetylcholine by competing with calcium ions?
A. Gentamicin
B. Edrophonium
C. Pyridostigmine
D. Mecamylamine
E. Nicotine

Answer: A. Gentamicin