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Edrophonium—an effective acetylcholinesterase inhibitor—will reduce the muscle weakness by blocking the enzymatic effect of acetylcholinesterase enzymes, prolonging the presence of acetylcholine in the synaptic cleft. It binds to a Serine-103 allosteric site, while pyridostigmine and neostigmine bind to the AchE active site for their ...
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 ...
A tensilon test, also called an edrophonium test, is a pharmacological test used for the diagnosis of certain neural diseases, especially myasthenia gravis. [1] It is also used to distinguish a myasthenic crisis from a cholinergic crisis in individuals undergoing treatment for myasthenia gravis.
The effects generally begin within 45 minutes and last up to 4 hours. [3] Common side effects include nausea, diarrhea, frequent urination, and abdominal pain. [3] 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]
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 ...
Botulinum toxin A has also been used to treat spasmodic torticollis (i.e., involuntarily neck turning), blepharospasm (involuntary contraction of the eye lids), and other uncontrolled facial muscle spasms in people with myasthenia gravis without side effects or with only short-lived dysphagia or diplopia. Botulinum toxin A treatment, it is ...
Ganglionic blockers are used less frequently now than they were in the past, because antihypertensives with fewer side effects are now available. Hexamethonium has been described as the "first effective antihypertensive drug". [4] However, they are still used in some emergency situations, such as aortic dissection or autonomic dysreflexia.
Oximes like these do have side effects and they include liver damage, kidney damage, nausea, vomiting, but they are very efficient antidotes to nerve gas poisoning. Usually treatment of poisoning includes the use of atropine, which can slow down the action of the poison, giving more time to apply the oxime.