CHAPTER REVIEW FROM CHAPTER 1 THROUGH
110 WITH GUIDED QUESTIONS AND
RATIONALES
©Cholinesterase inhibitors - Indirectly prevent the breakdown of
acetylcholine
©Nicotine
Insecticides
Chemical warfare - Toxicology encompasses the following:
©Bethenachol - Muscarinic agonists
©Atropine - Muscarinic antagonists
©Nicotine - Ganglionic stimulating agents
,©Mecamylamine - Ganglionic blocking agents
©d-Tubocurarine, succinylcholine - Neuromuscular blocking agents
©Neostigmine, physostigmine - Cholinesterase inhibitors (representative
drugs)
©Know the receptors that the drug affects
Know the normal responses to the activation of those receptors
Know whether the drug in question increases or decreases receptor
activation - Name some tips for understanding the cholinergic drugs
©Muscarinic Agonist: Bethanechol - "Parasympathomimetic agent"
Selective agonist at muscarinic cholinergic receptors
Heart: Bradycardia
Smooth muscle:
Lung: Constriction of the bronchi
Gastrointestinal system: Increased tone and motility
, Bladder: Contraction of detrusor muscle and relaxation of the trigone
and sphincter
Exocrine glands: Increased sweating, salivation, bronchial secretions,
and secretion of gastric acid
Eye: Miosis and contraction of the ciliary muscle
©Effects/Uses of Bethanechol - Therapeutic uses: Urinary retention and
investigational gastrointestinal uses
Adverse effects:
Cardiovascular system: Hypotension
Gastrointestinal system: Increased tone and motility
Exacerbation of asthma
Dysrhythmias in patients with hyperthyroidism
©Acetylcholine - Used for rapid miosis (pupil constriction) after
delivery in cataract surgery
©Pilocarpine - Used mainly for topical therapy of glaucoma
©Cevimeline - Derivative of acetylcholine