Posted by Roman on September 24, 2002, at 20:49:09
In reply to Effexor- What is the half life?, posted by lucky on September 24, 2002, at 19:26:29
The following is from the Effexor website:
"Dosing is once daily with EFFEXOR® XR, while dosing of immediate release EFFEXOR® is BID. Once-daily dosing may make EFFEXOR® XR more acceptable to many patients with depression or generalized anxiety disorder who might benefit from it, including those taking multiple medications who might be at risk for drug interactions."
http://www.effexor.com/hcp/overview/prescribing/prescribing-considerations.jhtml
Also:
"For venlafaxine and ODV, the approximate elimination half-lives are 5 and 11 hours, respectively. Venlafaxine and its metabolites are excreted primarily via the kidneys. After a single radiolabeled venlafaxine dose, 87% was recovered in the urine within 48 hours, mostly as conjugated and unconjugated ODV and other metabolites. The elimination half-life did not change between EFFEXOR® and EFFEXOR® XR."
http://www.effexor.com/hcp/overview/prescribing/prescribing-profile.jhtml
poster:Roman
thread:120981
URL: http://www.dr-bob.org/babble/20020922/msgs/120985.html