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Compared with epinephrine, ephedrine produces all of the following features EXCEPT:
It is a direct-acting sympathomimetic It has oral activity It is resistant to MAO and has much longer duration of action Its effects are similar, but it is less potent |
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Not true about tacrolimus is all except
It binds to cyclophillin It is a prodrug It activates IL-2 transcription Nephrotoxicity is a common adverse effect |
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Indicate the direct-acting sympathomimetic, which is an alfa1 alfa2 beta1 receptor agonist:
Isoproterenol Ephedrine Dobutamine Norepinephrine |
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Which of the following benzodiazepines is used mainly for hypnosis?
Clonozepam Lorazepam Flurazepam Midazolam |
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Calcium channel blockers and beta blockers have common indications in all except
variant angina Migraine Hypertension None of the above |
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Characteristics of beta-blocking agents include all of the following EXCEPT:
They occupy beta receptors and competitively reduce receptor occupancy by catecholamines or other beta agonists They do not cause hypotension in individuals with normal blood pressure They induce depression and depleted stores of catecholamines They can cause blockade in the atrioventricular node
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Which of the following drugs is a nonselective beta-blocker without intrinsic sympathomimetic or local anesthetic activity and used for the treatment of life-threatening ventricular arrhythmias?
Propranolol Oxprenolol Sotalol Atenolol |
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Epinephrine is not used is
Chronic bronchial asthma Local homeostasis Anaphylaxis All of the above |
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Which agent exerts hypnotic activity with minimal muscle relaxing and anticonvulsant effects?
Flurazepam Triazolam Zaleplon None of the above |
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Plasmid is a
Macromolecule involved in the protein synthesis Circular piece of duplex DNA A hybrid DNA that is formed by joining pieces DNA (Your selection was wrong) Endogenous substance secreted by one type of cell
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DOC for pneumocystis carinii pneumonia is:
penicillin cotrimaxazole erythromycin doxycyclin |
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Which of the following hypnotic benzodiazepines is more likely to cause “hangover” effects such as drowsiness, dysphoria, and mental or motor depression the following day?
Temazepam Triazolam Flurazepam None of the above |
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Elimination of ethanol is by:
exponential kinetics linear kinetics plasma drug concentration dependent saturation dependent |
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Which of the following direct-acting drugs is a relatively pure alfa agonist, an effective mydriatic and decongestant and can be used to raise blood pressure?
Epinephrine Norepinephrine Phenylephrine Ephedrine |
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Indicate adrenoreceptor antagonist agents, which are used for the management of pheochromocytoma:
Selective beta2-receptor antagonists Nonselective beta-receptor antagonists Indirect-acting adrenoreceptor antagonist drugs ?lfa-receptor antagonists |
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Which of the following sympathomimetics is an effective mydriatic?
Salmeterol Phenylephrine Dobutamine Norepinephrine |
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Indicate a hypnotic drug - a selective agonist at the BZ1 receptor subtype:
Flurazepam Zolpidem Triazolam Flumazenil
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which of the following antitubercular drug doese not crosses the brain blood barrier.
INH ethambutol rifampicin streptomycin |
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Indicate the beta1-selective agonist:
Isoproterenol Dobutamine Metaproterenol Epinephrine |
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The drug meant for Alzheimer disease is
Carbechol Neostigmine Donepezil Pilocarpine |
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