Effexor ER

Were you looking for information about
 Effexor RX? Effexor ER is a common misinterpreted name for Effexor XR.
 
Drug companies will often attach ER to the end of a drug name to indicate that it is an extended release drug. However, in the case of Effexor®, the manufacturer (Wyeth) attached an XR, which is another abbreviation for extended release. Therefore, there is no Effexor ER.
 
(If you would like to read about Effexor XR® [venlafaxine XR], click Effexor XR. This article describes how the medicine works to treat depression and a number of anxiety disorders in adults, and also discusses Effexor XR effects, dosing guidelines, potential side effects, and more.)
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Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;