DRUG QUIZ

Question 1

Dimercaprol

Answer 1

• Used to treat lead poisoning.
• chelating agent that forms heavy metal complexes rapidly excreted by kidneys
• acts by chemical antagonism (interaction in soln)

Question 2

Amphetamine action?

Answer 2

• Gets into B.Stream and past BBB and acts on noradrenergic receptors in the brain
• Binds to uptake 1 protein and taken into nerve terminal (uptake 1 protein normally inactivates NA)
• Binds to vesicles in nerve terminal and causes big NA release. Second time you take it has less of an effect bc isnt as big a store of NA able to be released.

Question 3

Atropine

Answer 3

muscarininc cholinoreceptor agonist, used before anaesthetic to dry up secretions

Question 4

Digoxin

Answer 4

cardiac gylcocide (cardiac stimulant drug), given to heart failure patient as slows na/k pump and increases conc of intracellular ca, which increases force of contractility and contraction

Question 5

Neostigmine

Answer 5

enzyme inhib, increases ach conc in synapse by decreasing breakdown