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Pharmacology

Pharmacology is the branch of medical science which deals with the mechanism, functioning, experimental analysis of impact of different drugs on living system.

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Histamine And Antihistamine Drugs

pharmacy infoline  
30 Nov -0001   

histamine and antihistamine drugs...

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Notes All ❱

Teratogenecity of drugs

solotutes  
12 Jun 2020   

Some of drugs or chemicals are fatal to embryo development. Those drugs and chemical substances which produce deviations and abnormalities in the ...

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Commonly used drugs in Obstetric and Gynaecological conditions (starting with

prakash joshi  
5 Nov 2020   

There are some common drugs used in gynecology. Here is the list of drugs starting from "m" commonly used in obstetrics and gynecological conditio...

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Classification of antimicrobial drugs according to their type of action, spectrum of activity and mechanism of action

pharmacy exams  
19 May 2021   

Classification of antimicrobials is based on their type of action on microbes kill or reduce the number, spectrum of activity i.e can work on specif...

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MCQs on antihistamines | medicinal chemistry | by pharmacy infoline

pharmacy infoline  
12 Jul 2021   

Antihistamines are drugs which treat rhinitis and other allergies. Typically people take antihistamines as a cheap , generic, over-the-counter medicin...

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MCQs on antihistamines | medicinal chemistry | by pharmacy infoline

pharmacy infoline  
12 Jul 2021   

Antihistamines are drugs which treat rhinitis and other allergies. Typically people take antihistamines as a cheap , generic, over-the-counter medicin...

Read ( 3 min )

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Practice (MCQs) All ❱

1 of 36

Q.1 Compared to subcutaneous injection, the intramus- cular injection of drugs:

  • Is more painful
  • Produces faster response
  • Is unsuitable for depot preparations
  • Carries greater risk of anaphylactic reaction


B. PharmaPharmacologyD. PharmaBachelor of PharmacyDiploma in Pharmacy

2 of 36

Q.2 The majority of drugs cross biological membranes primarily by

  • Passive diffusion
  • Facilitated diffusion
  • Active transport
  • Pinocytosis


B. PharmaPharmacologyD. PharmaBachelor of PharmacyDiploma in Pharmacy

3 of 36

Directions:

Q.3 Which of the following drugs is most likely to be absorbed from the stomach

  • Hyoscine hydrobromide
  • Morphine sulfate
  • Diclofenac sodium
  • Quinine dihydrochloride


B. PharmaPharmacologyD. PharmaBachelor of PharmacyDiploma in Pharmacy

4 of 36

Directions:

Q.4 The most important factor governing absorption of a drug from intact skin is

  • Nature of the base used in the formulation
  • Lipid solubility of the drug
  • Molecular weight of the drug
  • Site of application


B. PharmaPharmacologyD. PharmaBachelor of PharmacyDiploma in Pharmacy

5 of 36

Q.5 Bioavailability differences among oral formulations of a drug are most likely to occur if the drug

  • Undergoes little first-pass metabolism
  • Is incompletely absorbed
  • Is freely water soluble
  • Is completely absorbed


B. PharmaPharmacologyD. PharmaBachelor of PharmacyDiploma in Pharmacy

6 of 36

Q.6 Marked redistribution is a feature of

  • Highly plasma protein bound drugs
  • Depot preparations
  • Highly lipid soluble drugs
  • Poorly lipid soluble drugs


B. PharmaPharmacologyD. PharmaBachelor of PharmacyDiploma in Pharmacy

7 of 36

Q.7 High plasma protein binding

  • Increases volume of distribution of the drug
  • Generally makes the drug long acting
  • Facilitates glomerular filtration of the drug
  • Minimises drug interactions


B. PharmaPharmacologyD. PharmaBachelor of PharmacyDiploma in Pharmacy

8 of 36

Q.8 Which of the following is a prodrug

  • Enalapril
  • Menapril
  • Thiazine
  • Penicillin


B. PharmaPharmacologyD. PharmaBachelor of PharmacyDiploma in Pharmacy

9 of 36

Q.9 Microsomal enzyme induction can be a cause of

  • Tolerance
  • Physical dependence
  • Psychological dependence
  • Idiosyncrasy


B. PharmaPharmacologyD. PharmaBachelor of PharmacyDiploma in Pharmacy

10 of 36

Q.10 Glomerular filtration of a drug is affected by its

  • Plasma protein binding
  • Lipid solubility
  • Degree of ionization
  • Rate of tubular secretion


B. PharmaPharmacologyD. PharmaBachelor of PharmacyDiploma in Pharmacy

11 of 36

Directions:

Q.1 Which of the following organs is innervated only by parasympathetic nerves

  • Sweat glands
  • Ciliary muscle
  • Iris muscles
  • Splenic capsule


D. PharmaPharmacologyB. PharmaBachelor of PharmacyDiploma in Pharmacy

12 of 36

Directions: .

Q.2 The following cotransmitter is most probably involved in mediating nonadrenergic-noncholinergic (NANC) relaxation of the gut

  • Nitric oxide (NO)
  • Adenosine
  • Neuropeptide Y (NPY)
  • Kallidin


D. PharmaPharmacologyB. PharmaBachelor of PharmacyDiploma in Pharmacy

13 of 36

Q.3 The major postjunctional cholinergic receptor is of the muscarinic type at the following site

  • Neuromuscular junction
  • Postganglionic parasympathetic
  • Adrenal medulla
  • Autonomic ganglia


D. PharmaPharmacologyB. PharmaBachelor of PharmacyDiploma in Pharmacy

14 of 36

Q.4 The choline ester resistant to both true and pseudo- cholinesterase is

  • Bethanechol
  • Butyrylcholine
  • Methacholine
  • Benzoylcholine


D. PharmaPharmacologyB. PharmaBachelor of PharmacyDiploma in Pharmacy

15 of 36

Q.5 The smooth muscle structure that is relaxed by choli- nergic drugs is

  • Colon
  • Gastric fundus
  • Bladder trigone
  • Major bronchi


D. PharmaPharmacologyB. PharmaBachelor of PharmacyDiploma in Pharmacy

16 of 36

Q.6 Pilocarpine is used for

  • Glaucoma
  • Paralytic ileus
  • Urinary retention
  • Infection


D. PharmaPharmacologyB. PharmaBachelor of PharmacyDiploma in Pharmacy

17 of 36

Q.7 The following inhibitor binds only to the ani-onic site of the cholinesterase enzyme

  • Neostigmine
  • Edrophonium
  • Physostigmine
  • Dyflos


D. PharmaPharmacologyB. PharmaBachelor of PharmacyDiploma in Pharmacy

18 of 36

Q.8 Reactivation of cholinesterase enzyme occurs on hydrolysis of the inhibitor by the same enzyme mole- cule in case of the following anticholinesterase

  • Edrophonium
  • Dyflos
  • Tacrine
  • Neostigmine


D. PharmaPharmacologyB. PharmaBachelor of PharmacyDiploma in Pharmacy

19 of 36

Q.9 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


D. PharmaPharmacologyB. PharmaBachelor of PharmacyDiploma in Pharmacy

20 of 36

Q.10 The site of action of miotics for therapeutic effect in angle closure glaucoma is

  • Canal of Schlemm
  • Ciliary body
  • Ciliary muscle
  • Sphincter pupillae muscle


D. PharmaPharmacologyB. PharmaBachelor of PharmacyDiploma in Pharmacy

21 of 36

Q.1 Labetalol differs from propranolol in that

  • It has additional α1 blocking property
  • It is a selective βS1 blocker
  • It does not undergo first pass metabolism
  • All of the above


D. PharmaPharmacologyPharmacologyB. PharmaPharmacologyPost GraduationDiploma in Pharmacy

22 of 36

Q.2 Select the β-adrenergic blocker that has additional β1blocking, vasodilator and antioxidant properties

  • Celiprolol
  • Metoprolol
  • Carvedilol
  • Acebutolol


D. PharmaPharmacologyPharmacologyB. PharmaPharmacologyPost GraduationDiploma in Pharmacy

23 of 36

Q.3 Select the β adrenergic blocker that is primarily eliminated unchanged by renal excretion

  • Atenolol
  • Carbinol
  • Ethanol
  • Dompirol


D. PharmaPharmacologyPharmacologyB. PharmaPharmacologyPost GraduationDiploma in Pharmacy

24 of 36

Q.4 Select the ultrashort acting cardioselective β adre- nergic blocker

  • Carbinol
  • Ethanol
  • Esmolol
  • Propalol


D. PharmaPharmacologyPharmacologyB. PharmaPharmacologyPost GraduationDiploma in Pharmacy

25 of 36

Q.5 The following disease is worsened by propranolol

  • Raynaud’s disease
  • Infection
  • Heart attack
  • Epilepsy


D. PharmaPharmacologyPharmacologyB. PharmaPharmacologyPost GraduationDiploma in Pharmacy

26 of 36

Q.6 Select the drug which is administered orally for erectile dysfunction in men

  • Albendazole
  • Mebendazole
  • Cocaine
  • Sildenafil


D. PharmaPharmacologyPharmacologyB. PharmaPharmacologyPost GraduationDiploma in Pharmacy

27 of 36

Q.7 Which of the following is a selective α1A receptor bloc- ker that affords symptomatic relief in benign prostatic hypertrophy without producing significant fall in blood pressure

  • Doxazosin
  • Alprostadil
  • Tamsulosin
  • Yohimbine


D. PharmaPharmacologyPharmacologyB. PharmaPharmacologyPost GraduationDiploma in Pharmacy

28 of 36

Q.8 The bladder trigone and prostatic muscles are relaxed by

  • Adrenergic α1 agonists
  • Adrenergic α1 antagonists
  • Adrenergic α2 antagonists
  • Adrenergic α2 agonists


D. PharmaPharmacologyPharmacologyB. PharmaPharmacologyPost GraduationDiploma in Pharmacy

29 of 36

Q.9 The drug which produces vasoconstriction despite being an α adrenergic blocker is

  • Tolazoline
  • Desmopressin
  • Ergotamine
  • Sildenafil


D. PharmaPharmacologyPharmacologyB. PharmaPharmacologyPost GraduationDiploma in Pharmacy

30 of 36

Q.10 While undergoing a surgical procedure a patient deve- lops hypotension. Which drug can be injected intramuscularly to raise his BP

  • Noradrenaline
  • Mephentermine
  • Isoxsuprine
  • Oxymetazoline


D. PharmaPharmacologyPharmacologyB. PharmaPharmacologyPost GraduationDiploma in Pharmacy

31 of 36

Q.1

The following are excreted faster in basic
urine

  • Weak acids
  • Strong acids
  • Weak Bases
  • None of the above


B. PharmaPharmacologyBachelor of Pharmacy

32 of 36

Q.2 A good example of chemical antagonism

  • Heparin & Protamine
  • Protamine & Zinc
  • Heparin & Prothrombin
  • All the above


B. PharmaPharmacologyBachelor of Pharmacy

33 of 36

Q.3 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


B. PharmaPharmacologyBachelor of Pharmacy

34 of 36

Q.4 Acidic drugs mainly bind to plasma

  • Albumin
  • acid glycoprotein
  • Weak acids
  • Heparin & Protamine


B. PharmaPharmacologyBachelor of Pharmacy

35 of 36

Q.5 _______ is expressed in both the intestinal epithelium and the kidney.

  • CYP378A
  • CYP4B2
  • CYP3A4
  • CYP256


B. PharmaPharmacologyBachelor of Pharmacy

36 of 36

Q.6 N-oxidation will be involved with the metabolism of following drugs, except

  • Dapsone
  • Meperidine
  • Phenytoin
  • Chlorpheniramine


B. PharmaPharmacologyBachelor of Pharmacy

Practice Tests All ❱

Pharmacology and Toxicology MCQs | Practice Test #1

Pharmacology and Toxicology MCQs | Practice Test #1
(20 Questions , 128 attempts)

View Test
Pharmacology Aptitude Test

Pharmacology Aptitude Test
(10 Questions , 440 attempts)

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Test on Drugs classifications 1

Test on Drugs classifications 1
(11 Questions , 140 attempts)

View Test
Online Practice Test for Pharmacy exams, previous Year questions

Online Practice Test for Pharmacy exams, previous Year questions
(50 Questions , 730 attempts)

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Test on Drugs classifications 1

Test on Drugs classifications 1
(11 Questions , 140 attempts)

View Test
Classification of drugs in pharmacology Aptitude Test

Classification of drugs in pharmacology Aptitude Test
(30 Questions , 457 attempts)

View Test

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