Anti-cholinergic Flashcards
List the action & cholinergic receptors at the different organs.
- iris
- ciliary muscle
- salivary glands
- lungs
- heart
- gallbladder
- stomach
- GIT
- bladder
- genitals
What’s the only cholinergic receptor for the sympathetic system?
Sweat glands – M3
How is anticholinergic used in Parkison’s disease?
(benzotropine) inhibit ACh produced by cholinergic interneurons which inhibit action of dopamine –> increase dopamine
Which is the muscarinic receptor involved in nausea vomiting?
M1 in CNS
Cholinergic neurons in Alzheimer’s disease
severely damaged–> neurodeg associated cognitive decline
2 types of cholinergic agonists
direct indirect
What are the indirect cholinergic agents?
acetylcholinesterase inhibitor
reversible - physostigmine, neostigmine, pyridostigmine
irreversible - SARIN, soman, tabun, parathion, malathion
What are the 2 classes of anticholinergic agents?
- direct
2. indirect
Direct anticholinergic drugs
MUSCARINIC
- atropine
- benzatropine
- scopolamine
- ipratropium
- oxybutynin
NICOTINIC
Indirect anticholinergic drugs
ganglionic blockers
3 direct cholinergic agents
- acetylcholine - degraded by acetylcholinesterase
- carbamate choline esters- resistant to AChE but broken down by other choline esterases
- alkaloids - not broken down by cholinesterase
Name the direct cholinergic drugs.
MUSCARINIC
- Pilocarpine
- Bethanechol (choline esters)
NICTOTINIC
- nicotine (alkaloids)
- varenicline (partial agonist)
*ACh - choline esters– target both receptors
Name the indirect REVERSIBLE cholinergic agents
- Physostigmine/donepezil
- Neostigmine
- Pyridostigmine
*Pilocarpine
MOA
Clinical uses
Adverse effects
x
*Bethanechol
MOA
Clinical uses
Adverse effects
x