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Propranolol-induced adverse effects include all of the following EXCEPT:
Bronchoconstriction “supersensitivity” of beta-adrenergic receptors (rapid withdrawal) Hyperglycemia Sedation, sleep disturbances, depression and sexual dysfunction |
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Is Phenoxyethanol harmful? |
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Indicate a beta-blocker, which is particularly efficacious in thyroid storm:
Pindolol Sotalol Phentolamine Propranolol |
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During slow wave sleep (stage 3 and 4 NREM sleep):
Dreams occur The secretion of adrenal steroids is at its highest Somnambulism and nightmares occur The secretion of somatotropin is at its lowest
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Which of the following sympathomimetics is preferable for the treatment of chronic orthostatic hypotension?
Epinephrine Norepinephrine Ephedrine Salmeterol |
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All of the following can be used in chloroquine resistant malaria due to P. falciparum except:
Mefloquin Quinine Halofantrine Primaquin |
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Indicate the hypnotic drug, which does not change hepatic drug-metabolizing enzyme activity?
Flurazepam Zaleplon Triazolam All of the above |
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Subtype-selective alfa1 receptor antagonists such as tamsulosin, terazosin, alfusosin are efficacious in:
Hyperthyroidism Cardiac arrhythmias Benign prostatic hyperplasia (BPH) Asthma |
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Indicate the adrenoreceptor antagonist drug, which is a rauwolfia alkaloid:
Prazosin Propranolol Reserpine Phentolamine |
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Compared with phentolamine, prazosin has all of the following features EXCEPT:
Irreversible blockade of alfa receptors Highly selective for alfa1 receptors The relative absence of tachycardia Persistent block of alfa1 receptors |
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Indicate an alfa1 adrenoreceptor antagonist, which has great selectivity for alfa1a subtype:
Prazosin Tamsulosin Phenoxybenzamine Phentolamine |
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Beta lactamase resistant penicillin
penicillin cloxacillin carbenicillin ampicillin |
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Pindolol, oxprenolol have all of the following properties EXCEPT:
They are nonselective beta antagonists They have no partial agonist activity They are less likely to cause bradycardia and abnormalities in plasma lipids They are effective in hypertension and angina |
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which of the following antitubercular drug developes ressistance faster
INH ethambutol rifampicin streptomycin |
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To inhibit lactation bromocriptine acts by:
dopamine agonicm dopamine antagonism serotonergic agonist serotonergic antagonist |
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The principal mechanism of action of adrenoreceptor antagonists is:
Reversible or irreversible interaction with adrenoreceptors Depletion of the storage of catecholamines Blockade of the amine reuptake pumps Nonselective MAO inhibition |
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Which of the following is not used in enterococcal infection?
Vancomycin Linezolide Teichoplanin Cephalexin |
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The mechanism of action of Paclitaxel is
bind to DNA through intercalation between specific bases and block the synthesis of new RNA or DNA, cause DNA strand scission mitotic spindle poison through the enhancement of tubulin polymerization competitive partial agonist ś inhibitor of estrogen and binds to estrogen receptors S-Phase specific antimetabolite that is converted by deoxykinase to the 5‘-mononuleotid |
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Which of the following agents is a nonselective beta receptor agonist?
Norepinephrine Terbutaline Isoproterenol Dobutamine |
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Anitskov’s cells are modified…
Neutrophils Macrophages Lymphocytes Eosinophils
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