Methiodal

Methiodal
Clinical data
Trade names	Abrodil, Conturex, Kontrast U
ATC code	V08AA09 ( WHO );
Identifiers
	IUPAC name Sodium iodomethanesulfonate;
CAS Number	143-47-5 ; Sodium salt: 126-31-8 ;
PubChem CID	23662381 ;
DrugBank	DB13321 ;
ChemSpider	29078 ;
UNII	H20847G0I0 ; Sodium salt: 3880P18UBM ;
KEGG	D09213 ;
CompTox Dashboard (EPA)	DTXSID701035794 ;
ECHA InfoCard	100.004.348
Chemical and physical data
Formula	CH2INaO3S
Molar mass	243.98 g·mol−1
3D model (JSmol)	Interactive image ;
	SMILES C(S(=O)(=O)[O-])I.[Na+];
	InChI InChI=1S/CH3IO3S.Na/c2-1-6(3,4)5;/h1H2,(H,3,4,5);/q;+1/p-1; Key:COCJIVDXXCJXND-UHFFFAOYSA-M;
	(verify)

Last updated January 01, 2026

Methiodal is a pharmaceutical drug that was used as an iodinated contrast medium for X-ray imaging.^[1] Its uses included myelography (imaging of the spinal cord); for this use, cases of adhesive arachnoiditis have been reported, similar to those seen under the contrast medium iofendylate.^[2]

It is not known to be marketed anywhere in the world in 2021.^[3]

References

↑ Vällfors B, Hansson HA, Belghmaïdi M, Irstam L, Persson LI (September 1983). "Effect of radiologic contrast media and local anaesthetics on the blood-brain barrier and on the leptomeninges". Acta Neurologica Scandinavica. 68 (3): 164–70. doi: 10.1111/j.1600-0404.1983.tb05343.x . PMID 6316706. S2CID 45152412.
↑ Skalpe IO (March 1978). "Adhesive arachnoiditis following lumbar myelography". Spine. 3 (1): 61–4. doi:10.1097/00007632-197803000-00012. PMID 205956. S2CID 23788810.
↑ "Methiodal search results". Drugs.com. Retrieved 2021-03-31.

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[1] Vällfors B, Hansson HA, Belghmaïdi M, Irstam L, Persson LI (September 1983). "Effect of radiologic contrast media and local anaesthetics on the blood-brain barrier and on the leptomeninges". Acta Neurologica Scandinavica. 68 (3): 164–70. doi: 10.1111/j.1600-0404.1983.tb05343.x . PMID 6316706. S2CID 45152412.

[2] Skalpe IO (March 1978). "Adhesive arachnoiditis following lumbar myelography". Spine. 3 (1): 61–4. doi:10.1097/00007632-197803000-00012. PMID 205956. S2CID 23788810.

[3] "Methiodal search results". Drugs.com. Retrieved 2021-03-31.

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