Due to its action on both the serotoninergic and adrenergic systems, Venlafaxine is also used as treatment to reduce episodes of cataplexy, form of muscle weakness, in patients with the sleep disorder narcolepsy. Chest pain, irregular heartbeat, heart failure, heart attack, QT prolongation in the EKG high cholesterol, kidney disease, liver disease, seizure disorder, history of stroke, thyroid problems, low sodium in the blood. It is unknown whether the suicidality risk extends to longer-term use,. Pregnancy Patients should be advised to notify their physician if they become pregnant or intend to become pregnant during therapy. From receipt of completed application, it takes approximately to 10 days for medication to arrive at either the health care professional office or the patient home address. No increased risk has been shown for adults over age 24, and risk venlafaxine brez zdravnika decreased for those over age 65. Bipolar manic-depressive disorder personal or family history of suicide attempts, bleeding problems, severe loss of body water dehydration glaucoma, high blood pressure, heart problems.