4) Adrenergic Receptor Agonists - Antagonists Flashcards
What is the class for Norepinephrine (Levophed)
Non-selective agonist
What is the mechanism for Norepinephrine (Levophed)
Agonist: alpha 1, alpha 2, beta 1
What are the therapeutics for Norepinephrine (Levophed)
Acute Hypotension
What are the important side effects for Norepinephrine (Levophed)
Hypertension; arrythmias; headache
What is the class for Epinephrine
Non-selective agonist
What is the mechanism for Epinephrine
Agonist: alpha 1, (alpha 2), beta 1, beta 2
What are the therapeutics for Epinephrine
Anaphylactic shock; combined with local anesthetics; glaucoma
What are the important side effects for Epinephrine
Palpitation; arrhythmias; headache
What is the class for Amphetamine
Indirect acting
What is the mechanism for Amphetamine
Increases release of NE
What are the therapeutics for Amphetamine
ADHD, narcolepsy, recreation
What are the important side effects for Amphetamine
Hypertension, insomnia, anxiety, arrhythmias
What is the class for Isoproterenol (Isuprel)
Non-selective beta agonist
What is the mechanism for Isoproterenol (Isuprel)
Agonist: beta 1, beta 2
What are the therapeutics for Isoproterenol (Isuprel)
shock; heart block
What are the important side effects for Isoproterenol (Isuprel)
Palpitation; tachyarrhythmia; headache
What is the class for Dobutamine
beta 1-selective beta agonist
What is the mechanism for Dobutamine
Agonist: beta 1
What are the therapeutics for Dobutamine
Cardiac decompensation; shock; heart block
What are the important side effects for Dobutamine
Tachyarrythmias; hypertension
What is the class for Albuterol (Proventil)
beta 2-selective beta agonist
What is the mechanism for Albuterol (Proventil)
Agonist: beta 2
What are the therapeutics for Albuterol (Proventil)
Prevent or reverse exercise-induced bronchospasm; mild asthma; COPD
What are the important side effects for Albuterol (Proventil)
Can mask progressively severe inflammation
What are the other side effects for Albuterol (Proventil)
Tachycardia, muscle tremor
What are the miscellaneous for Albuterol (Proventil)
10-15 minutes to take action, 6-12 hours (max) of duration; nebulizer delivers more, but greater side effects; oral is least effective (requires more dose –> side effects); can be used night symptoms, but not ideal
What is the class for Terbutaline (Brethine)
beta 2-selective beta agonist
What is the mechanism for Terbutaline (Brethine)
Agonist: beta 2
What are the therapeutics for Terbutaline (Brethine)
Prevent or reverse exercise-induced bronchospasm; mild asthma; COPD; early labor
What are the important side effects for Terbutaline (Brethine)
Can mask progressively severe inflammation
What are the other side effects for Terbutaline (Brethine)
Tachycardia, muscle tremor
What are the miscellaneous for Terbutaline (Brethine)
10-15 minutes to take action, 6-12 hours (max) of duration; nebulizer delivers more, but greater side effects; oral is least effective (requires more dose –> side effects); can be used night symptoms, but not ideal
What is the class for Phenylephrine (Neo-Synephrine)
alpha 1-selective alpha agonist
What is the mechanism for Phenylephrine (Neo-Synephrine)
Agonist: alpha 1
What are the therapeutics for Phenylephrine (Neo-Synephrine)
Nasal congestion; postural Hypotension
What are the important side effects for Phenylephrine (Neo-Synephrine)
Hypertension; reflex bradycardia
What is the class for Clonidine (Catapres)
alpha 2-selective alpha agonist
What is the mechanism for Clonidine (Catapres)
Agonist: CNS alpha 2
What are the therapeutics for Clonidine (Catapres)
Hypertension; shock; withdrawal from drug dependence
What are the important side effects for Clonidine (Catapres)
Sedation
What is the class for alpha-methyldopa (Aldomet)
alpha 2-selective alpha agonist
What is the mechanism for ?-methyldopa (Aldomet)
Metabolite (a-methylnorepinephrine) activates CNS a2 receptors
What are the therapeutics for ?-methyldopa (Aldomet)
Hypertension
What are the important side effects for ?-methyldopa (Aldomet)
Sedation
What are the miscellaneous for ?-methyldopa (Aldomet)
Prodrug; crosses BBB
What is the class for Fenoldopam (Corlopam)
Selective dopamine agonist
What is the mechanism for Fenoldopam (Corlopam)
Agonist: D1 only
What are the therapeutics for Fenoldopam (Corlopam)
Increase blood flow at renal, mesenteric, and cerebral arteries
What are the miscellaneous for Fenoldopam (Corlopam)
~10 minute half-life
What is the class for Dopamine
Mixed acting (direct/indirect)