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Acetylcholine Acetylcholinesterase Acetylcholinesterase inhibition. Acetylcholinesterase inhibitors (AChEIs) also often called cholinesterase inhibitors, [1] inhibit the enzyme acetylcholinesterase from breaking down the neurotransmitter acetylcholine into choline and acetate, [2] thereby increasing both the level and duration of action of acetylcholine in the central nervous system, autonomic ...
Reversible acetylcholinesterase inhibitor agents such as physostigmine can be used as an antidote in life-threatening cases. Wider use is discouraged due to the significant side effects related to cholinergic excess including seizures, muscle weakness, bradycardia, bronchoconstriction, lacrimation, salivation, bronchorrhea, vomiting, and diarrhea.
This crisis may be masked by the concomitant use of atropine along with cholinesterase inhibitor medication in order to prevent side effects. Flaccid paralysis resulting from cholinergic crisis can be distinguished from myasthenia gravis by the use of the drug edrophonium (Tensilon), as it only worsens the paralysis caused by cholinergic crisis ...
The most prominent side effects are dizziness and sleepiness. [44] Diphenhydramine is a potent anticholinergic agent and potential deliriant in higher doses. This activity is responsible for the side effects of dry mouth and throat, increased heart rate, pupil dilation, urinary retention, constipation, and, at high doses, hallucinations or ...
Common side effects of inhalant use include dry mouth, cough, inflammation of the airways, [3] and shortness of breath. [8] Potentially serious side effects include urinary retention, worsening spasms of the airways, and a severe allergic reaction. [3] It appears to be safe in pregnancy and breastfeeding.
Hyoscine butylbromide reduces smooth muscle contraction and the production of respiratory secretions. These are normally stimulated by the parasympathetic nervous system, via the neurotransmitter acetylcholine. As an antimuscarinic, hyoscine butylbromide binds to muscarinic acetylcholine receptors, blocking their effect. [25]
More severe side effects include low blood pressure, weakness, and allergic reactions. [3] It is unclear if use in pregnancy is safe for the fetus. [3] Pyridostigmine is an acetylcholinesterase inhibitor in the cholinergic family of medications. [3] It works by blocking the action of acetylcholinesterase and therefore increases the levels of ...
Cholinesterase inhibitors (ChEIs), also known as anti-cholinesterase, are chemicals that prevent the breakdown of the neurotransmitter acetylcholine or butyrylcholine by cholinesterase. This increases the amount of the acetylcholine or butyrylcholine in the synaptic cleft that can bind to muscarinic receptors , nicotinic receptors and others.