pharmacology MCQs – Page 14

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

pharmacology Mcqs
261. Drugs like barbiturates precipitate symptoms of prophyria because______________?
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A. They inhibit ALA synthase

B. They depress ALA synthase

C. They induce heme oxygenase

D. They inhibit heme oxygenase

262. Which of the following anti inflammatory drug is a COX-2 inhibitor_____________?
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A. Rofecoxib

B. Aspirin

C. Sulidec

D. Ketoprofen

263. Which of the following drugs is used in the morning sickness_____________?
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A. Atropine

B. Chlorpromazine

C. Hyoscine

D. Adrenalin

264. About articaine, all are true except_____________?
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A. More breaks down causes more toxicity

B. Mandibular infiltration is more effective than nerve block in mandibular molar teeth

C. Is amide which is metabolized in liver

D. Plasma half-life is 90 min
265. The intramuscular administration of 0.6 mg of atropine sulphate to a 50 kg adult may produce all of the following effects except________________?
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A. Decreased salivation

B. Decreased sweating

C. Bradycardia

D. Mydriasis

266. Dissociative Sedation and analgesia described by Robert and Rosebaum in 1971 is____________?
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A. 20 to 30% N20

B. 50 to 70% N20

C. 5 to 20% N20

D. 30 to 50% N20

267. Drug which causes gingival hyperplasia_____________?
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A. Nifedipine

B. Erythromycin

C. Cyclosporin

D. Aspirin

E. Both A & C
268. Which one of the anti hypertensives is contraindicated in pregnancy ?
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A. Nifedipine

B. a-Methldopa

C. Enlapril

D. Hydralazine

269. All of the following are inhalational anesthetic agents except_____________?
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A. Ketamine

B. Enflurane

C. Halothane

D. Isoflurane

270. Blockers are used in all except_____________?
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A. Thyrotoxcosis

B. Phenochyromocytoma

C. Secondary shock

D. Migraine

271. Secretory immunoglobulin is_____________?
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A. IgE

B. IgA

C. IgG

D. IgM

272. Teratogenicity is_______________?
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A. Drug dependence

B. Carcinoma forming tendency

C. Intolerance to a drug

D. Fetal malformation
273. Methemoglobinemia is a complication following the administration of_____________?
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A. Lignocaine

B. Prilocaine

C. Procaine

D. Benzacaine

274. Heroin, an addict drug contains______________?
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A. Pentazocine

B. ASA

C. Acetyl morphine

D. Propoxyphene

275. Which of the following drugs is least efficacious in the treatment of cemporal lobe epilepsy ?
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A. Phenobarbitone

B. Phenytoin sodium

C. Carbamazepine

D. Primidone
276. All of the following are predominant arteriolar dilators except____________?
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A. Nifedipine

B. Sodium Nitro prusside

C. Hydrallazine

D. Nitrates
277. A prodrug is____________?
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A. The oldest member of a class of drugs

B. The proto type member of a class of drugs

C. A drug that is stored in body tissues and is then gradually released in the direction

D. An inactive drug that is transformed in the body to an active metabolite
278. Toxic optic neuropathy can be caused by all of the following EXCEPT____________?
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A. Ethylene glycol

B. Tetracycline

C. Ethambutol

D. Ciprofloxacin
279. Salicylate administration is contraindicated in pregnancy because_______________?
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A. Readily croses placental barrier

B. Causes pulmonary hypertension of newborn

C. It delay onset of labour

D. All of these
280. A patient has had an allergic reaction with Urticarlia and wheezing. The drug of choice will be_____________?
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A. Epinephrine

B. Succinylcholine

C. Hydrocortisone

D. All of the above