NEW YORK, June 21 (Praxis Press) A common disorder known as generalized anxiety disorder (GAD) lasts for a period of six months or more, but it is unknown whether the long term-use of a drug used to treat this disorder, venlafaxine XR (brand name Effexor), is safe or effective. A new study has found that venlafaxine XR is an effective for both the short- and long-term treatment of anxiety. Venlafaxine XR may be useful for the long-term treatment of GAD.

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