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Pharmacology-3
Adrenergic Agonists
| Drug | Action | Receptor | Pharmacologic Use |
|---|---|---|---|
| Epinephrine | Direct | alpha and beta catecholamine | rapid relief of allergic rxn, bronchodilator, prolong action of local anaesthetics, restoring cardiac rhythm, vasopressor, topical hemostatic agent, lower IOC in glaucoma |
| Norepinephrine | Direct | alpha and beta catecholamines | increase PVR in shock, hypotension |
| Amphetamine | Indirect | alpha and beta | obesity, narcolepsy, ADHD |
| dextroamphetamine | indirect | alpha and beta | obesity, narcolepsy, ADHD |
| methylphenidate | indirect | alpha and beta | narcolepsy, ADHD |
| cocaine | indirect | alpha and beta | topical hemostatic and local anasthetic |
| ephedrine | mixed | alpha and beta | narcolepsy, obesity |
| isoproterenol | direct | beta selective catecholamine | emergency heart block, emergency bradycardia, or pacemaker in torsades de pointes |
| dobutamine | direct | beta 1 selective catecholamine | acute cardiac failure, CHF, post op or post MI |
| dopamine | mixed | beta 1 selective, D1 receptor renal, alpha 1 selective (high) | different types of shock, profound hypotension, CHF, incr urine output (dopa vs beta effect) |
| metaproterenol | direct | beta 2 selective | bronchodilator used in asthma |
| terbutaline | direct | beta 2 selective | bronchodilater and uterine relaxation |
| ritodrine | direct | beta 2 selective | uterine relaxation |
| albuterol | direct | beta 2 selective | bronchodilator used in asthma |
| phenylephrine | direct | alpha 1 selective | mydriatic used to faciliate retina exam, cariothoracic surgery to increase PVR with minimal/controllable cardiac effects, nasal decongestant |
| methoxamine | direct | alpha 1 selective | hypotension, PSVT (stimulates vagal effect) |
| metaraminol | mixed | alpha 1 selective | hypotension, PSVT (stimulate vagal effect) |
| pseudoephedrine | direct | alpha 1 selective | nasal decongestant |
| clonidine | direct | alpha 2 selective | antihypertensive agent, withdrawl syndromes, analgesic |
| apraclonidine | direct | alpha 2 selective | opthalmic drops in glaucoma |
| brimonidine | direct | alpha 2 selective | opthalmic drops used in gluacoma |
| guanfacine | direct | alpha 2 selective | antihypertensive |
| guanabenz | direct | alpha 2 selective | antihypertensive |
| alpha-methyl-NE (methyldopa) | direct | alpha 2 selective | antihypertensive |