Adrenergic Agonists

Question 0

tetrahydrozoline & naphazoline

type and use

Answer 0

a1 agonist

anti-redness eye drops

Question 1

oxymetazoline & xylometazoline

type & use

Answer 1

a1 agonists

topical nasal spray

Question 2

clonidine

type, route of admin., & use

Answer 2

a2 agonist
oral or transdermal
tx for HTN & addiction

Question 3

a2 agonist effects (2)

Answer 3

decreased sympathetic output from CNS

decreased PVR, BP, and HR

Question 4

methyldopa, guanabenz, guanfacine

type & use

Answer 4

a2 agonist

tx HTN

Question 5

brimondine type & use

Answer 5

a2 agonist

tx glaucoma

Question 6

apraclonidine type & use

Answer 6

a2 agonist

decrease ocular pressure

Question 7

tizanidine type & use

Answer 7

a2 agonist

muscle relaxant

Question 8

dobutamine type

Answer 8

B1 agonist

Question 9

albuterol type

Answer 9

B2 agonist

Question 10

epinephrine type & effects

Answer 10

a1, a2, B1, B2 agonist
increase HR, contractile force, pulse pressure
glycogenolysis
bronchodilation

Question 11

norepinephrine type & effects

Answer 11

a1, a2, B1 agonist
increase BP, PVR, HR
vasoconstriction

Question 12

isoproteronol type & effects

Answer 12

B1, B2 agonist
increase HR, CO, & contraction force
decrease BP
vasodilation

Question 13

tyramine type, mechanism, and effect

Answer 13

indirect adrenergic agonist
increases NE release from nerve terminal
can cause tachyphylaxis, severe HTN