Select the drug which inhibits cyclooxygenase irreversibly: A. Aspirin B. Mephenamic acid C. Naproxen D. Diclofenac

Select the drug which inhibits cyclooxygenase irreversibly: A. Aspirin B. Mephenamic acid C. Naproxen D. Diclofenac
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A. Aspirin
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Select the drug which inhibits cyclooxygenase in the brain but not at peripheral sites of inflammation: A. Nimesulide B. Paracetamol C. Ketorolac D. Mephenamic acid

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Which of the following analgesics itself frequently causes headache as a side effect: A. Indomethacin B. Mephenamic acid C. Piroxicam D. Metamizol

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A 35-year-old male presented with an attack of acute gout. He was treated with a 10 day course of naproxen. His blood uric acid level is high. What future line of treatment is most appropriate: A. No regular medication. Treat attacks of acute gout when they occur with naproxen. B. Regular long-term treatment with naproxen C. Regular long-term treatment with allopurinol D. Start with allopurinol + naproxen for 2 months followed by long-term allopurinol treatment

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In the treatment of chronic inflammatory diseases, the most important limitation of aspirin is: A. Acid-base and electrolyte disturbances B. Hypersensitivity and idiosyncratic reactions C. Gastric mucosal damage D. Salicylism

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Last Answer : C. Gastric mucosal damage

The following nonsteroidal antiinflammatory drug is a preferential cyclooxygenase-2 (COX-2) inhibitor: A. Tenoxicam B. Meloxicam C. Diclofenac sod. D. Ketoprofen

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Aspirin inhibits the activity of the enzyme: (A) Lipoxygenase (B) Cyclooxygenase (C) Phospholipae A1 (D) Phospholipase A2

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The action of aspirin that results in its greater efficacy as an antithrombotic (anti-platelet) drug is its ability to (a) Inhibit lipoxygenase as well as cyclooxygenase (b) Selectively inhibit cyclooxygenase I (c) Inhibit leukocyte migration (d) Promote uric acid excretion (e) Acetylate cyclooxygenase

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Last Answer : Ans: E

Instead of being effective in hyperuricaemia following drug is contradictred in the treatment of gout (a) Indomethacin (b) Diclofenac (c) Piroxicam (d) Aspirin

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Which of the following is an irreversible inhibitor of cyclooxygenase ? (a) Aspirin (b) Phenylbutazone (c) Indomethacin (d) Piroxicam

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The cyclooxygenase isoenzymes COX-1 and COX-2 differ from each other in that (a) They catalyse different pathways in prostanoid biosynthesis (b) COX–1 is inhibited by aspirin but not COX–2 (c) COX–2 is inhibited by ibuprofen but not COX–1 (d) COX–1 is constitutive while COX–2 is inducible

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Which of the following is a reversible inhibitor of platelet cyclooxygenase? (a) Alprostadil (b) Aspirin (c) Ibuprofen (d) LTC4 (e) Misoprostol

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Aspirin may reduce inflammatory responses by inhibiting which of the following enzymes? A A. Cyclooxygenase B. Lipoxygenase C. Phospholipase C D. None of these

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What is true of nimesulide: A. It exerts antiinflammatory action by several mechanisms in addition to cyclooxygenase inhibition B. It is preferred for long-term use in rheumatoid arthritis C. It is contraindicated in aspirin intolerant asthma patients D. All of the above

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Aspirin in low doses produces longlasting inhibition of platelet cyclooxygenase (COX) because: A. Platelets contain low quantity of COX B. Platelets cannot synthesize fresh COX molecules C. Platelets bind aspirin with high affinity D. Platelet COX is inducible

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Which of the following is an irreversible inhibitor of cyclooxygenase: A. Aspirin B. Phenylbutazone C. Indomethacin D. Piroxicam

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The cyclooxygenase isoenzymes COX-1 and COX-2 differ from each other in that: A. They catalyse different pathways in prostanoid biosynthesis B. COX-1 is inhibited by aspirin but not COX-2 C. COX-2 is inhibited by ibuprofen but not COX-1 D. COX-1 is constitutive while COX-2 is largely

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While prescribing a first generation H1 antihistaminic the patient should be advised to avoid: A. Driving motor vehicles B. Consuming processed cheese C. Strenuous physical exertion D. All of the above

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The conventional H1 antihistaminics possess the following additional properties except: A. Local anaesthetic B. Vasopressor C. Antiarrhythmic D. Catecholamine potentiating

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Autacoids differ from hormones in that: A. Autacoids are involved only in the causation of pathological states B. Autacoids do not have a specific cell/tissue of origin C. Autacoids generally act locally at the site of generation and release D. Both ‘B’ and ‘C’ are correct

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Last Answer : D. Both ‘B’ and ‘C’ are correct

Allopurinol has a therapeutic effect in the following conditions except: A. Radiotherapy induced hyperuricaemia B. Hydrochlorothiazide induced hyperuricaemia C. Acute gouty arthritis D. Kala-azar

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Probenecid has the following action(s): A. Uricosuric B. Analgesic C. Antiinflammatory D. Both ‘A’ and ‘C’

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The most important dose-limiting adverse effect of colchicine is: A. Sedation B. Kidney damage C. Diarrhoea D. Muscle paralysis

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Nonsteroidal antiinflammatory drugs are more commonly used than colchicine in acute gout because: A. They are more effective B. They act more rapidly C. They have additional uricosuric action D. They are better tolerated

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Disease modifying antirheumatic drugs are indicated in rheumatoid arthritis: A. In place of NSAIDs in patients who donot tolerate the latter B. Along with NSAIDs in patients with progressive disease C. Only when NSAIDs fail to afford symptomatic relief D. In all patients irrespective of disease status/ concurrent medication

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Sulfasalazine is used in the following disease(s): A. Bacillary dysentery B. Ulcerative colitis C. Rheumatoid arthritis D. Both ‘B’ and ‘C’ are correct

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Among the following, choose the NSAID with the highest COX-2 selectivity: A. Nimesulide B. Nabumetone C. Rofecoxib D. Celecoxib

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