Echothiophate

Echothiophate

File:Echothiophate iodide.svg
Clinical data
ATC code	S01EB03 (WHO)
Identifiers
IUPAC name 2-diethoxyphosphorylsulfanylethyl-trimethyl-ammonium iodide
CAS Number	6736-03-4
PubChem CID	10547
DrugBank	APRD00942
E number	{{#property:P628}}
ECHA InfoCard	{{#property:P2566}}
Chemical and physical data
Formula	C9H23INO3PS
Molar mass	383.228 g/mol

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Echothiophate is a parasympathomimetic and organophosphate which binds irreversibly to cholinesterase. Because of the very slow rate at which echothiophate is hydrolyzed by cholinesterase, its effects can last a week or more.

Clinical uses

Echothiophate is used as ocular drops in the treatment of chronic glaucoma and in some cases, accommodative esotropia. It is available under several trade names such as Phospholine Iodide (Wyeth-Ayerst).

Shortage

Wyeth Pharmaceuticals stopped manufacturing echothiophate iodide (phospholine iodide) in the US in 2003. After contacting the American Academy of Ophthalmology (AAO), Wyeth rescinded their decision and, according to AAO public relations representative Michelle Stephens, the AAO and Wyeth were in talks for about a year about manufacturing it.

In the meantime, a worldwide shortage of the drug has occurred.

Sources

• Brenner, G. M. (2000). Pharmacology. Philadelphia, PA: W.B. Saunders Company. ISBN 0-7216-7757-6
• Canadian Pharmacists Association (2000). Compendium of Pharmaceuticals and Specialties (25th ed.). Toronto, ON: Webcom. ISBN 0-919115-76-4

External links

• Eurotimes article: "Echothiophate iodide shortage leaves US specialists struggling to find alternative for acute cases"