Cholinergic Pharmacology Flashcards
1
Q
Antidote for atropine overdose (anticholinergic toxicity)
A
Physostigmine
*“phyxes” atropine overdose
2
Q
How does pralidoxime (2-PAM) work? Use.
A
Pull off the phosphate from the AchE (before aging)
Organophosphate (parathion) insecticides intoxication ▶️ AchE inhibitors
3
Q
How does the organophosphate inhibit the AchE?
A
Phosphorylation of AchE
4
Q
How is M3 receptor stimulated in blood vessels? What is the response?
A
- drugs, endogenously is not activated ▶️ is not innervated
- vasodilation ▶️ ⬇️ blood pressure, reflex tachycardia
5
Q
Muscarinic agonist used to diagnose asthma
A
Methacholine
6
Q
Unique symptom or sign of the cholinergic syndrome by organophosphates that can not be treated by atropine? How do you treat it?
A
Muscle paralysis
PAM-2 (pralidoxime)