Misplaced Pages

This is an old revision of this page, as edited by 200.203.1.176 (talk) at 01:48, 30 August 2005. The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

escitalopram (free base)
IUPAC chemical name
CAS number  ?	ATC code  ?
Chemical formula	?
Molecular weight	?
Bioavailability	?
Metabolism	?
Elimination half-life	?
Excretion	?
Pregnancy category	?
Legal status	?
Routes of administration	?

Escitalopram oxalate (also known as Lexapro and Cipralex) is a medication developed by the Danish pharmaceutical company Lundbeck, that acts as a selective serotonin reuptake inhibitor or SSRI. It is typically used as an antidepressant to treat depression associated with mood disorders although also may be used in the treatment of body dysmorphic disorder and anxiety.

Escitalopram is the pure S-enantiomer (single isomer) of the racemic bicyclic phthalane derivative citalopram. Escitalopram oxalate is designated S-(+)-1--1-( p -fluorophenyl)-5-phthalancarbonitrile oxalate with the molecular formula:

C₂₀H₂₂FN₂O C₂HO₄

and the molecular weight is 414.40.

Escitalopram oxalate is derived from the drug citalopram which is made up of two mirror-image isomers, only one of which is thought to be an effective medication. Lundbeck has split the isomers apart, taken the active isomer and has licensed it as the new drug 'escitalopram'.

It is notable that escitalopram was released shortly before the patent for citalopram was due to expire. The expiration of a patent means other companies can legally produce cheaper generic versions. Escitalopram is subject to a new patent. Critics have argued that escitalopram, and the subsequent marketing campaign to persuade mental health professionals to prescribe it, is a cynical ploy to promote sales of a virtually identical but considerably more expensive drug. In defence of the new drug, Lundbeck have claimed that the drug has additional benefits over the older citalopram (e. g. less potential interactions with other medications) and other antidepressant drugs on the market. However, a meta-analysis (http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=14665791&dopt=Abstract) has come to the conclusion that these benefits, if true, are too small to justify the higher price.

In the United States, the drug is marketed under the name Lexapro by Forest Laboratories, Inc.

In Canada, the drug is marketed under the name Cipralex by Lundbeck Canada, Inc.

Externals links

• Lexapro (Forest Laboratories) Official Lexapro Homepage
• Cipralex (Lundbeck) Official Cipralex Homepage

• Lexapro Information FAQ to Lexapro
• Pharmacological information Lexapro
• Lexapro Feedback Depression Blog

• Antidepressants
• Selective serotonin reuptake inhibitors