compensatory mechanisms are ineffective to maintain blood pressure & tissue perfusion. renin causes vasoconstriction & tissue hypoxia. brain & heart are protected by lipids being used as energy by the heart and glycogen transformed to glucose to be used by the brain.
A: The side effects of Effexor (venlafaxine) are similar to those of other antidepressants. Patients typically notice side effects when they're first starting Effexor, especially in the first two weeks of treatment. But they usually develop a tolerance for the drug, and the side effect symptoms improve.
Venlafaxine is used to treat depression. It may improve your mood and energy level, and may help restore your interest in daily living. Venlafaxine is known as a serotonin-norepinephrine reuptake inhibitor (SNRI). It works by helping to restore the balance of certain natural substances (serotonin and norepinephrine) in the brain. OTHER USES: This section contains uses of this drug that are not listed in the approved professional labeling for the drug but that may be prescribed by your health care professional.