Pharmacology Questions and Answers Part-1

1. `Essential drugs’ are:
a) Life saving drugs
b) Drugs that meet the priority health care needs of the population
c) Drugs that must be present in the emergency bag of a doctor
d) Drugs that are listed in the pharmacopoia of a country

Answer: b

2. An 'orphan drug' is:
a) A very cheap drug
b) A drug which has no therapeutic use
c) A drug needed for treatment or prevention of a rare disease
d) A drug which acts on Orphanin receptors

Answer: c

3. Drug administered through the following route is most likely to be subjected to first-pass metabolism:
a) Oral
b) Sublingual
c) Subcutaneous
d) Rectal

Answer: a

4. Transdermal drug delivery systems offer the following advantages except:
a) They produce high peak plasma concentration of the drug
b) They produce smooth and nonfluctuating plasma concentration of the drug
c) They minimise interindividual variations in the achieved plasma drug concentration
d) They avoid hepatic first-pass metabolism of the drug

Answer: a

5. In addition to slow intravenous infusion, which of the following routes of administration allows for titration of the dose of a drug with the response:
a) Sublingual
b) Transdermal
c) Inhalational
d) Nasal insufflation

Answer: c

6. Which of the following drugs is administered by intranasal spray/application for systemic action:
a) Phenylephrine
b) Desmopressin
c) Azelastine
d) Beclomethasone dipropionate

Answer: b

7. Compared to subcutaneous injection, the intramuscular injection of
a) Is more painful
b) Produces faster response
c) Is unsuitable for depot preparations
d) Carries greater risk of anaphylactic reaction

Answer: b

8. Select the route of administration which carries the highest risk of adversely affecting vital functions:
a) Intra arterial injection
b) Intrathecal injection
c) Intravenous injection
d) Intramuscular injection

Answer: c

9. Alkalinization of urine hastens the excretion of
a) Weakly basic drugs
b) Weakly acidic drugs
c) Strong electrolytes
d) Nonpolar drugs

Answer: b

10. Majority of drugs cross biological membranes primarily by:
a) Passive diffusion
b) Facilitated diffusion
c) Active transport
d) Pinocytosis

Answer: a