Nervous System Drugs Flashcards
List 5 indications for the use of cholinergic agents
To control vomiting
To treat urinary retention
To stimulate GI activity
To treat glaucoma
Act as an antidote
Aid in diagnosis of myasthenia gravis
4 Primary Ways In Which Drugs Affect the ANS
Mimicking neurotransmitters
Interfering with neurotransmitter release
Blocking the attachment of neurotransmitters to receptors
Interfering with the breakdown of neurotransmitters
Cholinergic
Activated by or transmitted through acetylcholine
Adrenergic Agents
An action or receptor that is activated by epinephrine or norepinephrine
Classified by receptor type
Parasympathomimetic
A drug that mimics the effects of stimulating the parasympathetic nervous system
Analgesia
The absence of sensation of pain
Cholinergic Drug Examples
Direct-Acting: Metoclopramide and Pilocarpine
Indirect-Acting: Neostigmine
Anticholinergic Drug examples
Atropine
Aminopentamide
Anticholinergic (Parasympatholytic)
Drugs that block the action of acetylcholine at muscarinic receptors of the PNS
Side Effects: reduces salivation, reduces GI activity, dilated pupils
Sympathomimetic Agents and Examples
Mimic the effects of the sympathetic nervous system
Alpha-adrenergic ex. Epinephrine, dopamine, xylazine, and dexmedetomidine
Beta adrenergic ex. Albuyerol, epinephrine, dopamine
Sympatholytic Agents and Examples
Block the action of the sympathetic nervous system
Alpha adrenergic antagonist: prazosin, acepromazine
Beta adrenergic antagonist: propranolol, atenolol