Effect of xanax on blood pressure. . . This is just a side effect of the anti anxiety meds. They don't effect the blood pressure unless you are in the midst of a panic attack. Read 'More . . Memory impairment is a common side effect. Q: I have been taking Xanax for about 25 years for panic attacks. Xanax is the best I could have ever done for myself. Side effects of Xanax? The side effects associated with taking Xanax if they occur . . Lower Blood Pressure Without Side Effects . . . . how much... more