modes of administration

Question 1

how may a drug be administered?

Answer 1

orally

topically / subcutaneously

intramuscular injection

intravenous injection

gaseous inhalation

Question 2

what are some pros and cons of injection of drugs

Answer 2

pros:

• very fast action
• no first pass metabolism
• predicable plasma levels

cons:

• short action time
• expensive
• difficult to self administer
• systemic allergy

Question 3

give some pros and cons of topical drug administration

Answer 3

pros:

• self admin is easier
• no injection or worry of administration
• no FPM
• localised allergy
• delayed and long action

cons:

• self overdose possible
• very slow action
• pricey
• varying effects from site to person

Question 4

give some pros and cons for oral drug administration

Answer 4

pros:

• easy to administer to self
• socially acceptable
• relatively cheap
• drug formulation can alter the duration and effects

cons:

• overdose easy
• first pass metabolism
• slow action
• variable levels of absorption