Hyoscine differs from atropine in that it: A. Exerts depressant effects on the CNS at relatively low doses B. Exerts more potent effects on the heart than on the eye C. Is longer acting D. Has weaker antimotion sickness activity

Hyoscine differs from atropine in that it: A. Exerts depressant effects on the CNS at relatively low doses B. Exerts more potent effects on the heart than on the eye C. Is longer acting D. Has weaker antimotion sickness activity
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A. Exerts depressant effects on the CNS at relatively low doses
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Hyoscine differs from atropine in that it (a) Exerts depressant effects on the CNS at relatively low doses (b) Exerts more potent effects on the heart than on the eye (c) Is longer acting (d) Has weaker antimotion sickness activity

Description : Hyoscine differs from atropine in that it (a) Exerts depressant effects on the CNS at relatively low doses (b) Exerts more potent effects on the heart than on the eye (c) Is longer acting (d) Has weaker antimotion sickness activity

Last Answer : Ans: A

Hyoscine differs from atropine in that it: A. Exerts depressant effects on the CNS at relatively low doses B. Exerts more potent effects on the heart than on the eye C. Is longer acting D. Has weaker antimotion sickness activity

Description : Hyoscine differs from atropine in that it: A. Exerts depressant effects on the CNS at relatively low doses B. Exerts more potent effects on the heart than on the eye C. Is longer acting D. Has weaker antimotion sickness activity

Last Answer : A. Exerts depressant effects on the CNS at relatively low doses

The quarternary analogues of belladonna alkaloids are preferred over the natural alkaloids for antisecretory/ antispasmodic indications because: A. They have additional nicotinic receptor blocking activity B. They are incompletely absorbed after oral administration C. They are devoid of CNS and ocular effects D. Dose to dose they are more potent than atropine

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Last Answer : C. They are devoid of CNS and ocular effects

The most effective antimotion sickness drug suitable for short brisk journies is: A. Promethazine theoclate B. Cinnarizine C. Prochlorperazine D. Hyoscine

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Last Answer : D. Hyoscine

Ranitidine differs from cimetidine in the following respect: A. It is less potent B. It is shorter acting C. It does not have antiandrogenic action D. It produces more CNS side effect

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Last Answer : C. It does not have antiandrogenic action

The quarternary analogues of belladonna alkaloids are preferred over the natural alkaloids for antisecretory/ antispasmodic indications because: A. They have additional nicotinic receptor blocking activity B. They are incompletely absorbed after oral administration C. They are devoid of CNS and ocular effects D. Dose to dose they are more potent than atropine

Description : The quarternary analogues of belladonna alkaloids are preferred over the natural alkaloids for antisecretory/ antispasmodic indications because: A. They have additional nicotinic receptor blocking activity B. They are ... of CNS and ocular effects D. Dose to dose they are more potent than atropine

Last Answer : C. They are devoid of CNS and ocular effects

Dexamethasone differs from prednisolone in that it is: A. Longer acting B. More potent C. More selective D. All of the above

Description : Dexamethasone differs from prednisolone in that it is: A. Longer acting B. More potent C. More selective D. All of the above

Last Answer : D. All of the above

The following is not a feature of second generation antihistaminics: A. Nonimpairment of psychomotor performance B. High antimotion sickness activity C. Absence of anticholinergic/anti5 -HTa ctions D. Additional mechanisms of antiallergic action

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Last Answer : D. It has no CNS effect of its own but blocks the depressant effect of diazepam as well as stimulant effect of beta carbolines

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Last Answer : Ans: B

Pyridostigmine differs from neostigmine in that: A. It is more potent orally B. It is longer acting C. It produces less muscarinic side effects D. It does not have any direct action on NM receptors

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Last Answer : B. It is longer acting

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Last Answer : B. It is longer acting

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Description : Out of two anticholinesterases, drug X' is a tertiary amine while drug Y' is a quarternary ammonium compound. Then: A. Drug X' is likely to be more potent than Y' B. Drug X' will be more ... a miotic C. Drug Y' will be completely metabolized in the body D. Drug Y' will produce CNS effects

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Last Answer : A. They have potent antiovulatory action of their own

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Last Answer : A. Is a β1 selective blocker

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Last Answer : C. Homatropine

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Last Answer : B. Its subjective effects are pleasurable at low doses but turn unpleasant at high doses

Though bromocriptine acts directly on dopamine receptors, it is used in parkinsonism only as a supplement to levodopa because: A. It has low efficacy B. It produces marked dyskinesias C. Used alone, its effective doses produce intolerable side effects D. Its therapeutic effect takes long time to develop

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Last Answer : C. Used alone, its effective doses produce intolerable side effect

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