Sympatholytics Flashcards Preview

RUSVM Pharmacology 2016 > Sympatholytics > Flashcards

Flashcards in Sympatholytics Deck (8):
1

Phenoxybenzamine -receptor and uses?

Alpha antagonist used to treat urinary tension by relaxing the urethra sphincter and treats pheochromocytoma hypertension

2

Prazosin -receptor and uses?

Alpha-1 Antagonist causes muscle relaxation and vasodilation used to treat urinary retention

3

Beta blockers

Propanolol
atenolol
esmolol

4

Propanolol -receptor and uses?

Nonselective beta antagonist that causes bradycardia used to treat tachyarrhythmias, feline hyperthyroidism, and chocolate toxicosis

5

Atenolol -receptor and uses?

Selective beta-1 antagonist that does not cause bronchoconstriction

6

Esmolol -receptor and uses?

Selective beta-1 antagonist that is shorter acting then atenolol

7

Indirect acting sympatholytics

Alpha-methyl DOPA - blocks DOPA decarboxylase in the NE production pathway to reduce synthesis of NE

Reserpine- blocks NE uptake into vesicles - used for calming equines

Guanethidine- blocks NE release to treat hypertension

8

Direct acting Alpha antagonists

Phenoxybenzamine
prasozin