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Review of Pharmacology - 9E (2015)

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<strong>Review</strong> <strong>of</strong> <strong>Pharmacology</strong><br />

Contd...<br />

Definite association Possible association Unlikely association<br />

Quinidine Cimetidine Grise<strong>of</strong>ulvin<br />

Procainamide Ethosuximide Methysergide<br />

Methyldopa Levodopa Oral contraceptives<br />

Lithium<br />

Tetracyclines<br />

Trimethadione<br />

Phenylbutazone<br />

Nitr<strong>of</strong>urantoin<br />

Reserpine<br />

Penicillamine<br />

Streptomycin<br />

Phenytoin<br />

Penicillin<br />

Propylthiouracil<br />

Sulfasalazine<br />

Sulfonamides<br />

Methimazole<br />

Other Topics and Adverse Effects<br />

19. Ans. (b) Flutamide (Ref: CMDT-2010/1055; Katzung 11/e p718)<br />

‘Flutamide is an anti-androgen and is used for treatment <strong>of</strong> hirsutism’<br />

20. Ans. (b) Minocycline (Ref: Harrison 17/e p327-328, CMDT-2010/121)<br />

Both minocycline as well as chlorpromazine can cause pigmentation on long-term use.<br />

However, as the patient in question is being treated for acne, the answer should be minocycline. Antibiotics used in acne<br />

are erythromycin, clindamycin, tetracycline, doxycycline and minocycline.<br />

21. Ans. (b) Zidovudine – Cardiomyopathy (Ref: Katzung 11/e p1028-1029)<br />

‘Zidovudine do not cause teratogenicity, rather it is used during pregnancy to prevent vertical transmission. The major<br />

toxicity <strong>of</strong> ziduvudine is bone marrow suppression.<br />

22. Ans. (a) Cl<strong>of</strong>azimine; (b) Minocycline; (d) Gold (Ref: KDT 6/e p713,752, 204)<br />

• Drugs causing pigmentation <strong>of</strong> skin are:<br />

––<br />

OCP<br />

––<br />

Minocycline<br />

––<br />

Chloroquine<br />

––<br />

Chlorpromazine and related phenothiazines<br />

––<br />

Heavy metals (Ag, Au, Bi, As)<br />

––<br />

Cl<strong>of</strong>azimine<br />

––<br />

Amiodarone<br />

––<br />

Quinacrine<br />

Note:<br />

• Chloroquine causes blue-block pigmentation <strong>of</strong> nails and palate and depigmentation <strong>of</strong> hair.<br />

• Zidovudine, hydroxyurea causes brown discolouration <strong>of</strong> nails.<br />

• Sulphonamides cause fixed drug eruptions.<br />

• Rifampicin cause redish discolouration <strong>of</strong> secretions.<br />

• Vancomycin cause Redman Syndrome.<br />

23. Ans. (b) Potassium exchange resins (Ref: CMDT-2010/798-799)<br />

Drugs used for emergency treatment <strong>of</strong> hyperkalemia are:<br />

• Insulin (with glucose)<br />

• β-agonists<br />

• Sodium bicarbonate<br />

• Calcium gluconate<br />

Drugs used as non-emergency measure in hyperkalemia are:<br />

• Loop diuretics<br />

• K + exchange resins [Sodium polystyrene sulfate]<br />

24. Ans. (c) Neuropeptide Y (Ref: Katzung 10/e p386-88)<br />

• Alpha-Melanocyte-Stimulating Hormone (alpha-MSH) and corticotropin-releasing hormone (CRH) both suppress<br />

food intake.<br />

706<br />

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