Also Known As: Edrophonium, Tensilon, Enlon, Reversol
Edrophonium is a readily reversible acetylcholinesterase inhibitor. It prevents breakdown of the neurotransmitter acetylcholine and acts by competitively inhibiting the enzyme acetylcholinesterase, mainly at the neuromuscular junction. It is sold under the trade names Tensilon, Enlon and Reversol.
Indication: edrophonium (by the so-called Tensilon test) is used to differentiate myasthenia gravis from cholinergic crisis. In myasthenia gravis, where a person is not able to produce enough neuromuscular stimulation, edrophonium will reduce the muscle weakness by effectively supplying more acetylcholine. In a cholinergic crisis, where a person has too much neuromuscular stimulation, edrophonium will make the muscle weakness worse by inducing a depolarizing block.