venlafaxine, Effexor XR (Effexor has been discontinued in the US) (cont.)

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Many experts believe that an imbalance among neurotransmitters is the cause of depression as well as other psychiatric disorders. Serotonin and norepinephrine are two neurotransmitters released by nerves in the brain. Venlafaxine works by preventing the reuptake of serotonin and epinephrine by nerves after they have been released. Since uptake is an important mechanism for removing released neurotransmitters and terminating their actions on adjacent nerves, the reduced uptake caused by venlafaxine increases the effect of serotonin and norepinephrine in the brain. Venlafaxine is available in an extended release formulation (Effexor XR). The FDA approved venlafaxine in December 1993.

PRESCRIBED FOR: Venlafaxine is prescribed for the treatment of depression, depression with associated symptoms of anxiety, generalized anxiety disorder, and social anxiety disorder.

Effexor XR is approved for the treatment of adults with panic disorder.

SIDE EFFECTS: Venlafaxine, like most anti-depressants, can cause:

Other side effects that can occur are:

Medically Reviewed by a Doctor on 2/27/2015

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