Tensilon is the trade name for edrophonium chloride. The Tensilon test is an injection of edrophonium chloride used to diagnosis myasthenia gravis (MG).

The test involves the intravenous administration of edrophonium chloride, a drug that temporarily increases the levels of acetylcholine at the neuromuscular junction.

In people with myasthenia gravis involving the eye muscles, the drug will briefly relieve weakness.

they stimulate the action of ACh at post ganglionic muscarinic receptors.

Calcium chloride will not further react with chloride ions.