Gallamine triethiodide

Gallamine triethiodide (Flaxedil) is a non-depolarising muscle relaxant.^[1] It acts by combining with the cholinergic receptor sites in muscle and competitively blocking the transmitter action of acetylcholine.^[2] Gallamine is a non-depolarising type of blocker as it binds to the acetylcholine receptor but does not have the biological activity of acetyl choline. Gallamine triethiodide has a parasympatholytic effect on the cardiac vagus nerve, which causes tachycardia^[3][4] and occasionally hypertension. Very high doses cause histamine release.^{[citation needed]}. Presence of iodine in the triethiodide salt makes it radio opaque.

Trade namesFlaxedil

AHFS/Drugs.comInternational Drug Names

ATC code

• M03AC02 (WHO)

CAS Number

• 65-29-2 ^Y

Quick facts Clinical data, Trade names ...

Gallamine triethiodide

Clinical data
Trade names	Flaxedil
AHFS/Drugs.com	International Drug Names
ATC code	M03AC02 (WHO)
Identifiers
IUPAC name 2,2’,2’’-[benzene-1,2,3-triyltris(oxy)]tris(N,N,N-triethylethanaminium) triiodide
CAS Number	65-29-2 Y
PubChem CID	6172
IUPHAR/BPS	356
DrugBank	DB00483 Y
ChemSpider	5937 N
UNII	Q3254X40X2
KEGG	D02292 Y
ChEBI	CHEBI:503442 Y
ChEMBL	ChEMBL1200993 N
Chemical and physical data
Formula	C30H60N3O3+3 · 3 I− (gallamine triethiodide) C24H45N3O3 (gallamine)
Molar mass	891.529 g/mol (gallamine triethiodide) 423.633 g/mol (gallamine)
3D model (JSmol)	Interactive image
SMILES [I-].[I-].[I-].O(c1c(OCC[N+](CC)(CC)CC)cccc1OCC[N+](CC)(CC)CC)CC[N+](CC)(CC)CC
InChI InChI=1S/C24H45N3O3/c1-7-25(8-2)16-19-28-22-14-13-15-23(29-20-17-26(9-3)10-4)24(22)30-21-18-27(11-5)12-6/h13-15H,7-12,16-21H2,1-6H3 Y Key:ICLWTJIMXVISSR-UHFFFAOYSA-N Y
NY (what is this?)  (verify)

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Gallamine triethiodide was commonly used to prevent muscle contractions during surgical procedures, but is now superseded by new neuromuscular blocking drugs with fewer side effects.

It was developed by Daniel Bovet in 1947.^[5]

The drug is no longer marketed in the United States, according to the FDA Orange Book.