pharmacology MCQs – Page 22

Practise focused pharmacology questions with marked answers for exam preparation and subject revision.

pharmacology Mcqs
421. All of the following drugs are components of the MOPP cancer Chemotherapy regimen EXCEPT______________?
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A. Procarbazine

B. Methotrexate

C. Vincristine

D. Mechlorethamine

422. Oral contraceptive failure occurs in a patient on Rifampicin because of____________?
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A. Rifampicin induce the metabolism of contra ceptive

B. Rifampicin antagonize the action of oral contraceptive

C. Rifampicin simulates gonadotropin relase from pituitary

D. Rifampicin decrease the secretion of progestin

423. The bacterial resistance to tetracycline is due to___________?
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A. Decreased uptake of drug by bacteria

B. Alteration of dehydrofolate reductase

C. Inactivation of drug by enzymes

D. Alteration of drug binding sites

424. Which of the following drugs in likely to damage the eighth cranial nerve when administered for a long period of time ?
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A. Streptomycin

B. Ethambutol

C. Isoniazid

D. Rifampicin

425. Morphine withdrawal is characterized by all EXCEPT_____________?
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A. Yawning

B. Diarrhoea

C. Lacrimation

D. Miosis
426. First line of antitubercular drug is_____________?
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A. Ethambutol

B. INH

C. Streptomycin

D. Cephalosporins

427. All of the following are features of streptomycin drug except______________?
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A. It is an antitubercular drug

B. Effective against g-ve organisms

C. It can be given orally

D. None of the above

428. Agent used in oral thrush_____________?
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A. Miconazole

B. Amoxycillin

C. Clobetasol

D. Clotrimazole
429. Scopolamine helps in________________?
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A. A & C

B. Decreased secretions

C. Motion sickness

D. Hypertension

430. Which of the following is not a broad spectrum antibiotic ?
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A. Tetracycline

B. Chloramphenicol

C. Cephalosporins

D. Doxycyclin

431. Morphine is a_____________?
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A. Sedative

B. Alkaloid

C. Diuretic

D. Anti hypertensive

E. Both A & B
432. Excessive bleeding due to heparin overdose is controlled by______________?
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A. Factor VIII

B. Vitamin K

C. Protamine sultate

D. EADA

433. Which of the following antihypertensive agents in most likely to cause an exaggerated response to an injected catecholamine_____________?
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A. Hydralazine

B. Gauanethidine

C. A thiazide diuretic

D. Propranolol

434. Mechanism of action of chlortetracycline_____________?
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A. Interfere with metabolism

B. Interfere with DNA function

C. Inhibition of cell wall formation

D. Inhibition of protein synthesis
435. The most preferred acute emetic for emesis induced by anticancer drugs is______________?
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A. Metaclopromide

B. Ondensetron

C. Chlorpromazine

D. Dicyclomine

436. The drug which gives orange colour to the urine is______________?
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A. Rifampicin

B. INH

C. Streptomycin

D. Ethambutol

437. Which of the following cardiac depressants is contraindicated in a patient with cardiac arrhythmia____________?
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A. Phenytoin

B. Quinidine

C. Propranolol

D. Lidocaine

438. True about amoxycillin in comparison to ampicillin is_______________?
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A. Lower oral biovailability

B. Can be given Parenterally

C. Higher oral biovailability

D. Equal oral biovailability

439. One of the below mentioned penicillin is NOT given orally______________?
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A. Cloxacillin

B. Amoxicillin

C. Phenoxymethy penicillin

D. Carbenicillin
440. The administration of penicillin G along with probenicid result in_____________?
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A. Increased metabolis of penciling G

B. Decreased renal excretion of penciling G

C. Increased excretion of probenacid in the feaces and perspiration

D. Increased excretion of probenacid in urine