(5) Autonomic Nervous System Drugs I (Acetylcholine) Flashcards
Methacholine
Class-direct-acting cholinergic receptor agonist Effect- binds muscarinic receptors in airway Txt-asthma challenge test
Carbachol
Class- direct-acting cholinergic receptor agonist Effect-Constricts pupil &; relieves intraocular pressure Txt- glaucoma
Bethanechol
Class- direct-acting cholinergic receptor agonist Effect-stimulates bladder or GI w/o cardio involvement
Nicotine
Class- direct-acting cholinergic receptor agonist Txt- smoking cessation
Pilocarpine
Class-direct-acting cholinergic receptor agonist Effect-M1 receptor agonist for sweat, tears, saliva -contracts ciliary mm &; pupillary sphincter Txt-open&; closed-angle glaucoma -Xerostomia (dry mouth)
Neostigmine
Class-reversible cholinesterase inhibitor Effect-Increase ACh NOT in CNS Txt- Myasthenia gravis
Edrophonium
Class- reversible cholinesterase inhibitor Effect-Increase ACh Txt- myasthenia gravis diagnosis
Physostigmine
Class-reversible cholinesterase inhibitor Effect-Increase ACh & penetrates CNS Txt-Myasthenia gravis & “phyxes” Atropine overdose
Pyridostigmine
Class- reversible cholinesterase inhibitor Effect-increase ACh Txt-long-acting myasthenia gravis
3 Reversible Cholinestearse Inhibitor Txt for Alzheimer’s Disease
Donepezil, Galantamine, Rivastigmine
Irreversible cholinesterase inhibitors
Organophosphates (pesticides, sarin gas) Malathion (not hydrolyzed by insects)
Signs of organophosphate toxicity
SLUDGE- salivation, lacrimation, urination, diarrhea, gastric emptying DUMBBLESS- diarrhea, urination, miosis, bronchospasm, bradycardia, excitation of skeletal mm; CNS, lacrimation sweating, salivation
2 methods to increase aqueous humor outflow for primary angle glaucoma
Muscarinic receptor agonists Prostaglandin analogs
3 methods to decrease aqueous humor production for primary angle glaucoma
alpha-2 receptor agonists B-receptor antagonists Carbonic anhydous inhibitors
Atropine
Class-anticholinergic (competitive antagonist) belladonna alkaloid Effect-blocks M1, M2, M3 Txt-bradycardia &; cholinesterase inhibitor overdose