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11 Cards in this Set
- Front
- Back
Alpha blockers
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Lower BP.
Vasodilation Orthostatic hypotension Alpha 1 blocker : Doxazosin Prazosin Terazosin Non selective (alpha 1 & 2) blockers: pentolamine Phenoxy benzamine |
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Beta blockers
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Non selective blockers:
propranolol Timolol Sotalol Beta 1 selective blockers : Metoprolol |
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Centrally acting alpha 2 agonists
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Clonidine
Methyl dopa |
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Alpha 1
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Site: smooth muscle in blood vessels, stomach, intestine, kidney, liver.
Action: vasoconstriction, decreased GI motility and tone, increased renin secretion, gluconeogenesis, mydriasis. |
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Alpha 2
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Smooth muscle in blood vessel
Vasodilation |
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Beta 1
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Cardiac, kidney.
Increased rate and force of contractions, increased renin secretions |
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Beta 2
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Bronchial, vascular, coronary arteriole, uterine smooth muscle, skeletal muscle, pancreas, liver.
Vasodilation, decreased secretion, gluconeogenesis. |
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Adrenergic agonists
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Indirect acting : tyramine & amphetamine.
Direct acting : phenylephrine, clonidine, dobutamine, terbutaline, albuterol, epinephrine, norepinephrine, isoproterenol. |
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Epinephrine reversal
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Predictable result of the use of epinephrine in a patient who has received an alpha blocker.
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Beta agonists
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Causes: increased heart rate, blood pressure, bronchodilation .
Uses : asthma, COPD, allergic reactions. Beta 1 agonists: dobutamine Isoproterenol Epinephrine Beta 2 agonists: Salmeterol Terbutaline. |
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Alpha agonists
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Alpha 1 agonists: causes vasoconstriction, mydriasis.
Methoxamine Oxymetazoline Alpha 2 agonists : used in treatment of opiate dependence and alchohol withdrawal symptoms. Clonidine Xylazine Guanethidine |