Venlafaxine is usually used as an antidepressant, however its extended use also treats social anxiety disorder, panic disorder, and generalized anxiety disorder. It comes from a medicine group named (SNRI) serotonin and norepinephrine reuptake inhibitors. These act by affecting serotonin, a chemical in the brain, which when unbalanced can cause depression. Venlafaxine Hcl is a prescription drug that is used to treat anxiety, depression, social fear, and panic attacks. Venlafaxine Hcl may improve the patient’s mood, increase the energy levels and help restore interest in day to day living. Venlafaxine Hcl can also reduce fear, apprehension, unwanted thought as well as the frequency at which panic attacks occur. Venlafaxine Hcl belongs to a class of drugs known as serotonin-norepinephrine reuptake inhibitors (SNRIs). Venlafaxine Hcl, under the guidance of a health care provider or physician, can be used to treat hot flashes that occur as a result of menopause. Venlafaxine Hcl works by helping restore the balance of certain natural substances (serotonin and norepinephrine) in the brain.