| Term | Definition |
|---|
| phenylephrine (neosynephrine) | sympathomimetic: adrenergic agent |
| sympathetic stimulation | contricts small blood vessels (reduces congestion), dilates pupils, reverses acute hypotension |
| contraindications of sympathomimetics | not to be used in Pt's with acute pancreatitis, heart disease, hepatitis or narrow angle glaucoma |
| Prazosin (Minipress) | Adrenergic Blocking Agent |
| action of prazosin | competes with norepinephrine |
| sympathetic inhibition | decreases peripheral resistance and blood pressure, may cause reflex tachycardia |
| side effects of adrenergic blocking agents | blurred vision, tinnitus, epistaxis (nose bleed) and edema |
| Bethanechol (Urecholine) | Parasympathomimetic |
| action of bethanechol | interacts with muscarinic receptors |
| parasympathetic stimulation | stimulation of smmooth muscle contraction (GI and urinary tracts), treats urinary retention and loss of bladder strength. |
| side effects of parasympathomimetics | increased salivation, sweating, abdominal cramping, hypotension that could lead to fainting, and difficulty breathing |
| Atropine | Cholinergic blocking agents: Anticholinergics |
| action of Atropine | blocks parasympathetic action of Ach and induces fight or flight response |
| parasympathetic inhibition | increased heart rate, bronchodilation, decreased GI motility, pupil dilation, |
| uses of anticholinergics | bradycardia, irritable bowel syndrome and eye exams |
| side effects of anticholinergics | dry mouth, constipation, urinary retention, increased heart rate, CNS excitement (delerium) |
Combine with other sets
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