ENLON-PLUS (edrophonium chloride, USP and atropine sulfate, USP) Injection, for intravenous use, is a sterile, nonpyrogenic, nondepolarizing neuromuscular relaxant antagonist. ENLON-PLUS (edrophonium chloride and atropine sulfate) is a combination drug containing a rapid acting acetylcholinesterase inhibitor, edrophonium chloride, and an anticholinergic, atropine sulfate. Chemically, edrophonium chloride is ethyl (m-hydroxyphenyl) dimethylammonium chloride; its structural formula is:

Molecular Formula: C₁₀H₁₆ClNO

Molecular Weight: 201.70

Chemically, atropine sulfate is: endo-(±)-alpha-(hydroxymethyl)-8-methyl-8-azabicyclo [3.2.1]oct-3-yl benzeneacetate sulfate (2:1) monohydrate. Its structural formula is:

Molecular Formula: (C₁₇H₂₃NO₃)₂·H₂SO₄·H₂O

Molecular Weight: 694.84

ENLON-PLUS (edrophonium chloride and atropine sulfate) contains in each mL of sterile solution:

5 mL Ampuls: 10 mg edrophonium chloride and 0.14 mg atropine sulfate compounded with 2.0 mg sodium sulfite as a preservative and buffered with sodium citrate and citric acid. The pH range is 4.0-5.0.

15 mL Multidose Vials: 10 mg edrophonium chloride and 0.14 mg atropine sulfate compounded with 2.0 mg sodium sulfite and 4.5 mg phenol as a preservative and buffered with sodium citrate and citric acid. The pH range is 4.0-5.0.

Last reviewed on RxList: 3/4/2009
This monograph has been modified to include the generic and brand name in many instances.