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The most potent CNS stimulant among xanthine bases are-

Pharmacy Pharmacology Biomedical Science D. Pharma B. Pharma General Pharmacology General Pharmacology

Q. 4 of Quiz-266 (Que-ID : 645)

The most potent CNS stimulant among xanthine bases are-

  • Theophylline
  • Caffeine
  • Theobromine
  • All of these

Ans → (b)Caffeine

Explanation → Caffeine is the most potent CNS stimulant.

This question is taken from this post → Classification of drugs in pharmacology Aptitude Test - attemp/practice


More MCQs in - Classification of drugs in pharmacology Aptitude Test

Q. 1 of Quiz-266 (Que-ID : 411)

Suganril is common brand name for:

  • Phenylbutazone
  • Piroxican
  • Benorylate
  • Indomethacin

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Q. 2 of Quiz-266 (Que-ID : 643)

Which one of these is μ-opioid agonist?

  • Pethidine
  • Codeine
  • Nalorphine
  • None of these

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Q. 3 of Quiz-266 (Que-ID : 644)

Levodopa is amino acid precursor of - 

  • Adrenaline
  • Dopamine
  • Norepinephrine
  • All of these

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Q. 4 of Quiz-266 (Que-ID : 645)

The most potent CNS stimulant among xanthine bases are-

  • Theophylline
  • Caffeine
  • Theobromine
  • All of these

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Q. 5 of Quiz-266 (Que-ID : 646)

Chlorpromazine is useful in the treatment of -

  • Mental depression
  • Schizophrenia
  • Parkinsonism
  • None of the above

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Q. 6 of Quiz-266 (Que-ID : 649)

Amlodepine Lowers blood pressure by-

  • Inhibition of calcium influx
  • Inhibition of angiotensin converting enzyme (ACE)
  • Blocking norepinephrine reuptake
  • All of the above

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Q. 7 of Quiz-266 (Que-ID : 650)

Cholestyramine is useful in the treatment of -

  • Arrhythmia
  • Hypertension
  • Hyper lipoproteinemia
  • Angina pectoris

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Q. 8 of Quiz-266 (Que-ID : 651)

Clofibrate mainly Lowers the -

  • LDL
  • VLDL
  • HDL
  • Chylomicrons

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Q. 9 of Quiz-266 (Que-ID : 652)

Lovastatin is useful in -

  • High blood pressure
  • Arrhythmia
  • Hyper lipoproteinemia
  • Angina pectoris

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Q. 10 of Quiz-266 (Que-ID : 653)

Oral anticoagulants act by antagonising the actions of -

  • Calcium ion
  • Prothrombin
  • Vitamin K
  • Fibrinogen

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Q. 11 of Quiz-266 (Que-ID : 654)

Glucocorticoid are used in the treatment of :

  • Inflammation
  • Inflammation and allergy
  • Skin infections
  • Allergy

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Q. 12 of Quiz-266 (Que-ID : 655)

The sulphonamides are :

  • Bactericidal in nature
  • Bacteriostatic in nature
  • Bactericidal only at high dose
  • None of the above

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Q. 13 of Quiz-266 (Que-ID : 656)

Tetracycline act by -

  • Inhibition of protein synthesis
  • Interfering in cell wall synthesis
  • Altering the permeability of cell membrane of organism
  • All of the above

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Q. 14 of Quiz-266 (Que-ID : 657)

Nystatin is principally effective in:

  • Candidia albicans
  • Blastomyces
  • Cryptococcus histoplasma
  • All of the above

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Q. 15 of Quiz-266 (Que-ID : 658)

Pyridoxine is administered with isoniazid to minimise the:

  • Hepatotoxicity
  • Neurotoxicity
  • Nephrotoxicity
  • Allergic reaction

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Q. 16 of Quiz-266 (Que-ID : 659)

Which one of these combination is used in Chloroquine resistance malaria?

  • Trimethoprim + pyrimethamine
  • Pyrimethamine + sulphadoxine
  • Mefloquine + Primaquine
  • None of the above

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Q. 17 of Quiz-266 (Que-ID : 660)

Which one of the enzyme is used in the treatment of cancer?

  • L- asparginase
  • Phosphodiesterase
  • Xanthine Oxidase
  • None of the above

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Q. 18 of Quiz-266 (Que-ID : 661)

Eserine acts by -

  • Receptor mechanism
  • Acting on cell membrane
  • Drug-enzyme interactions
  • None of the above

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Q. 19 of Quiz-266 (Que-ID : 662)

Desferrioxamine is a :

  • Chelating agent
  • Antimetabolite
  • Enzyme inhibitor
  • None of the above

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Q. 20 of Quiz-266 (Que-ID : 663)

Sodium valproate prevent the epileptic seizure by -

  • Depressing the CNS
  • Preventing influx of sodium
  • Preventing influx of calcium
  • None of the above

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Q. 21 of Quiz-266 (Que-ID : 664)

Which one of these is used with hyoscine to induce Twilight sleep?

  • Pentazocine
  • Pethidine
  • Diphenhydramine
  • None of the above

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Q. 22 of Quiz-266 (Que-ID : 665)

Ergot preparations are useful in migraine due to its-

  • Oxytocic action
  • Vasoconstriction action
  • α -receptors blocking action
  • None of the above

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Q. 23 of Quiz-266 (Que-ID : 666)

Which one of these is a major tranquilizer?

  • Phenelzine
  • Promethazine
  • Trifluoperazine
  • Hydroxyzine

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Q. 24 of Quiz-266 (Que-ID : 667)

Which one is a cholinomimetic agent?

  • Atropine
  • Salbutamol
  • Tolbutamide
  • Acetylcholine

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Q. 25 of Quiz-266 (Que-ID : 668)

Testosterone is not orally active because?

  • React with acid
  • Degradation
  • Reduction
  • Rapid oxidation of 17-hydroxy group to ketones

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Q. 26 of Quiz-266 (Que-ID : 669)

Which one of the following drug shows antiplatelet activity?

  • Verapamil
  • Nifedipine
  • Warferin
  • Dipyridamole

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Q. 27 of Quiz-266 (Que-ID : 670)

Nociceptors are associated with:

  • Chemical
  • Pain
  • Temperature
  • Pressure

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Q. 28 of Quiz-266 (Que-ID : 671)

Drug that shows selective antagonistic selective H1 antagonistic action?

  • Chlorpheniramine
  • Cimetidine
  • Ranitidine
  • Thioperamide

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Q. 29 of Quiz-266 (Que-ID : 672)

Which one is the alkylating anticancer drug?

  • Fluorouracil
  • Vincristine
  • Thiotepa
  • Doxorubicin

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Q. 30 of Quiz-266 (Que-ID : 673)

Which one is a HMGC A reductase inhibitor?

  • Rhabdomylosis
  • Nausea
  • Vomiting
  • Rise in serum transaminase

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Q. 18 of Quiz- (Que-ID : 1052)

Lysosomes are also known as -

  • Power house of cell
  • Protien factories
  • Suicidal bags
  • None of the above

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Q. 2 of Quiz- (Que-ID : 1680)

Most widely used anticaries agent is-

  • sodium bicarbonate
  • sodium carbonate
  • sodium fluoride
  • acacia

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Q. 10 of Quiz- (Que-ID : 653)

Oral anticoagulants act by antagonising the actions of -

  • Calcium ion
  • Prothrombin
  • Vitamin K
  • Fibrinogen

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Q. 16 of Quiz- (Que-ID : 659)

Which one of these combination is used in Chloroquine resistance malaria?

  • Trimethoprim + pyrimethamine
  • Pyrimethamine + sulphadoxine
  • Mefloquine + Primaquine
  • None of the above

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Q. 29 of Quiz- (Que-ID : 1338)

Trial balance helps in preparing-

  • Trading account
  • profit and loss account
  • Balance sheet
  • All of the above

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Q. 3 of Quiz- (Que-ID : 1675)

Active transport differs from facilitated transport in following ways, except

  • Carrier is involved
  • It is against concentration gradient
  • Energy is required
  • All of the above

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Q. 14 of Quiz- (Que-ID : 2226)

The stabilizing agent is used with adrenaline injection is-

  • Sodium thiosulphate
  • Sodium metabisulphite
  • sodium bisulphate
  • sodium sulphate

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Q. 9 of Quiz- (Que-ID : 511)

Example of shedule G drug is:

  • Tetracycline
  • Glibenclamide
  • Ibuprofen
  • Paracetamol

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Q. 8 of Quiz- (Que-ID : 1837)

Measles is caused by-

  • Variola virus
  • Rubeola virus
  • Varicella zoster
  • Herpes virus

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Q. 9 of Quiz- (Que-ID : 1503)

Pyridostigmine differs from neostigmine in that

  • It produces less muscarinic side effects
  • It is more potent orally
  • It is longer acting
  • It does not have any direct action on NM receptor

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Q. 10 of Quiz- (Que-ID : 3910)

Which one is essential amino acid

  • Alanine
  • Leucine
  • Proline
  • Tryptophan

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Q. 1 of Quiz- (Que-ID : 1124)

Which part of prescription contains information regarding the type and quality of dosage form?

  • Subscription
  • Inscription
  • Superscription
  • Signature

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Q. 20 of Quiz- (Que-ID : 1203)

In fund flow system the term 'fund' means -

  • Cash
  • Current assets
  • Current liabilities
  • Current liabilities - current assets

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Q. 6 of Quiz- (Que-ID : 1040)

pH of CSF is -

  • 7.13
  • 7.33
  • 7.23
  • 7.40

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Q. 2 of Quiz- (Que-ID : 1486)

The majority of drugs cross biological membranes primarily by

  • Passive diffusion
  • Facilitated diffusion
  • Active transport
  • Pinocytosis

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Q. 9 of Quiz- (Que-ID : 1546)

"ante cibum" refer to

  • with milk
  • after meal
  • before meal
  • with water

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Q. 7 of Quiz- (Que-ID : 94)

Lemon Grass oil is obtained by steam distilation of the

  • Fresh leaves of Eucalyptus globulus
  • Fresh flowering tops of the menths piperata
  • Leaves of aerial parts of the cymopogon citratus
  • Pericarp of the ripe or nearly ripe fruits of citrus limonis

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Q. 13 of Quiz- (Que-ID : 1842)

The intrinsic factor for the absorption of iron is-

  • Vitamin B12
  • Vitamin B6
  • Vitamin D
  • Vitamin A

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Q. 16 of Quiz- (Que-ID : 633)

The Insecticide act was passed in the year - 

  • 1968
  • 1960
  • 1965
  • 1967

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Q. 16 of Quiz- (Que-ID : 1396)

The marmelosin is constituent of-

  • Agar
  • Acacia gum
  • Bael
  • Karaya gum

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Q. 6 of Quiz- (Que-ID : 1583)

The water soluble fuels which are overproduced during fasting or in untreated diabetes mellitus are called… . .

  • Melanin bodies
  • Ketone bodies
  • Glucose bodies
  • Citrate bodies

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Q. 8 of Quiz- (Que-ID : 1032)

Give the name of the mill in which no wear occurs

  • Ball mill
  • Edge runner mill
  • Fluid energy mill
  • Roller mill

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Q. 14 of Quiz- (Que-ID : 566)

 Conversion of heat into electrical energy can be achieved by using a -

  • ammeter
  • Hydrometer
  • Voltmeter
  • Thermocouple

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Q. 6 of Quiz- (Que-ID : 1835)

In liver, Glucose is stored as-

  • Starch
  • Glycogen
  • Sucrose
  • Lactose

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Q. 10 of Quiz- (Que-ID : 2212)

Antacids forms metal complexes with-

  • Chloramphenicol
  • Paracetamol
  • Tetracycline
  • Cephalosporin's

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Q. 9 of Quiz- (Que-ID : 682)

Belladonne tincture is prepared by percolation due to its

  • Nature of crude drug
  • therapeutic value of drug
  • chemical properties of constituents
  • none of these

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Q. 22 of Quiz- (Que-ID : 2234)

The Colour of the lead dithizone complex is-

  • Green colour
  • Yellow colour
  • Violet colour
  • None of these

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Q. 7 of Quiz- (Que-ID : 1658)

Which antibiotic can be employed for treatment of typhoid fever?

  • Tetracycline
  • Lincosamide
  • Azithromycin
  • Ciprofloxacin

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Q. 8 of Quiz- (Que-ID : 1659)

Which of the following drug cannot be given in bacillary dysentery

  • Diphenoxylate
  • Ciprofloxacin
  • Sulfamethoxazole
  • None of the above

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Q. 4 of Quiz- (Que-ID : 1498)

The choline ester resistant to both true and pseudo- cholinesterase is

  • Bethanechol
  • Butyrylcholine
  • Methacholine
  • Benzoylcholine

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Directions : For each question, choose a correct option from given four options (A, B, C and D)

Q. 20 of Quiz- (Que-ID : 1234)

Haematologic testing with AIDS patient will show-

  • Basophilia
  • Thrombocytopenia
  • Lymphopenia
  • Eosinophilia

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Q. 9 of Quiz- (Que-ID : 9)

Which one of these oils contain cynogenetic glycoside?

  • Ground nut oil
  • Seasome oil
  • Linseed oil
  • Olive oil

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Q. 22 of Quiz- (Que-ID : 1372)

The main ring structure is present in tryptophan is-

  • Indole
  • imidazole
  • furan
  • thiophane

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Q. 4 of Quiz- (Que-ID : 1354)

one example of glycoside is-

  • Cholesterol
  • Sphingomyelin
  • Lecithin
  • Gangliosides

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Q. 9 of Quiz- (Que-ID : 1516)

The drug which produces vasoconstriction despite being an α adrenergic blocker is

  • Tolazoline
  • Desmopressin
  • Ergotamine
  • Sildenafil

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Q. 59 of Quiz- (Que-ID : 236)

Which one of these antibiotics belongs to aminoglycoside category?

  • Chloramphenicol
  • Bacitracin
  • Streptomycin
  • Penicillin

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Q. 14 of Quiz- (Que-ID : 1843)

Which of the following has the highest amount of polyunsaturated fatty acid?

  • sunflower oil
  • Ground nut oil
  • Palm Oil
  • Soyabean oil

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Q. 15 of Quiz- (Que-ID : 658)

Pyridoxine is administered with isoniazid to minimise the:

  • Hepatotoxicity
  • Neurotoxicity
  • Nephrotoxicity
  • Allergic reaction

Discuss View Answer

Q. 21 of Quiz- (Que-ID : 1281)

If one gm. of dextrose provides 3.4 cal. 1 L of 5% solution of dextrose supplies-

  • 120 cals.
  • 17 cals.
  • 15 cals.
  • 170 cals.

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Q. 1 of Quiz- (Que-ID : 477)

Endocardium is the layer of

  • kidney
  • lung
  • heart
  • stomach

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Q. 24 of Quiz- (Que-ID : 1374)

The smallest amino acid is-

  • Alanine
  • Glycine
  • Valine
  • Phenylalanine

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Q. 6 of Quiz- (Que-ID : 67)

Vasograin is the common drug used for migraine, contains :

  • Dihydroergotamine
  • Ergotamine
  • Codeine
  • Propranolol

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Q. 34 of Quiz- (Que-ID : 121)

Antioxidants are added in lipstics to

  • Impart pleasant ordour
  • Staining of lips
  • Dissolving insoluble Pigments and dyes
  • Prevent rancidity

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Q. 1 of Quiz- (Que-ID : 1184)

Poultry farms comes under which industry?

  • Extractive industries
  • Genetic industries
  • Manufacturing industries
  • Construction industries

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