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Anticholinergic Drugs
Anticholinergic Drugs
27
Medical
Graduate
07/13/2015

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Term
Natural anticholinergics are made from
Definition
are alkaloids of the bella donna plant
Term
Name two naturally occuring anticholinergics and their chemistry structure
Definition
natural occuring anticholinergics include atropine and scopalamine which are teriary amines and can cross the BBB
Term
The structural difference between naturally occuring anticholinergics and the synthetic is
Definition
natural are tertiary amines while syntehtic are quaternary ammoniums withj a charge.
Term
Do anticholinergics bind reversible or irreversible to muscarinic receptors
Definition
reversible binding to M receptors
Term
the two MOA of anticholinergics are
Definition
1. inhibition of adenylate cyclase
2. alter permeability to Ca in the cell membrane.
Term
Where are M2 receptors found
Definition
heart, CNS, airway smooth muscle
Term
Where are M1 receptors found
Definition
CNS, Stomach, Lungs
Term
Which M receptors responsible for increasing hydrogen ion secretion
Definition
M1
Term
Which M receptors can cause bradycardia and bronchial constriction
Definition
M2
Term
Which M receptors cause salivation
Definition
M3
Term
which M receptors work via cGMP, phspholipase C and calcium mobilization
Definition
M1, M3, M5
Term
Which M recceptors work via inhibition of adenylyl cyclase A
Definition
M2 and M4
Term
Acronym sludge stands for what
Definition
For the agonist affects of cholinergic agents
S: Salivation
L: Lacrimation
U:Urination
D: Defication
G: Gastric secretions
E: Emesis
Term
Onset of atropine compared to glycopyrolate
Definition
Atropine 1 min
Glcyo 2 min
Term
Which Anticholinergic is mostly broken down by plasma esterases
Definition
ATropine
Term
Which drug has the highest levels unchanged and released in urine *glyco, atropine or scop
Definition
Glyco. Its got the largest charge so it loves h20 and stays in urine
Term
which anticholinergic is broken down most by hepatic metabolism
Definition
scopolamine
Term
At what dose of atropine will you have possible some slowing of HR
Definition
0.5
Term
Whats the minimal dose of atropine to cause increase HR
Definition
1 mg
Term
treatment of eyes with anti-ach will causes meosis or mydriasis
Definition
myadrisis dilation of eyes if you give a drug like scop or atorpine ect..
Term
atropine is paried with what anticholinesterase
Definition
atropine and edrophonium paired
Term
Name a side effect when giving a anticholinergic as a bronchodilator
Definition
can THICKEN secretions as a result of its drying properties. So despite dilating it can create dry thick mucus plugs
Term
a side effect of anisorcoria is seen with which anticholinergic
Definition
scopalamine
Term
the anticholinergic with the best antisialagogue effect is
Definition
scopalamine > glcyo > atropine
Term
The anti-AcH with best effect of mydriasis in order greatest to least
Definition
SCop > atropine. No effect from glyco
Term
name some patients anti-AcH should be avoided in
Definition
1. alheimers
2. glaucoma
3. Obstructive uropathy
4. paralytic ileous
5. toxic megacolon
6. myasthenia graiva
Term
Describe some signs of increasing ocular pressure and what the treatment is
Definition
May be from Anti-Ach drugs. You get increase ocular pressure. Sx include SUDDEN headach, severe eye pain, decreased vision.
Treatment:
1. optho consul
2. diamox
3. possible need laser iridotomy to relieve pressure.
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