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.
A: Effexor (venlafaxine) is an antidepressant in the class of drugs called selective norepinephrine reuptake inhibitors (SNRIs). SNRIs affect chemicals in the brain that may become unbalanced and cause depression. It is used to treat major depressive disorder, anxiety, and panic disorder.: Effexor (venlafaxine) is an antidepressant in a class of drugs called selective norepinephrine reuptake inhibitors (SNRIs). SNRIs affect chemicals in the brain that may become unbalanced and cause depression. Effexor is used to treat major depressive disorder, anxiety, and panic disorder.