I was put on xanax in my early 20's to help with hypertension,and years later also to help with cardiomyopathy. I was told it was to help with keeping my heart from beating too hard to push the blood trough my system,and as part of my heart regament i.e 81 mg asprin,metoprolol succ er 50 mg 2tabs daily and enalapril maleate 10 mg 1tab 2x daily as well as the alprazolam(xanax) 1 mg 3x daily. My doctor said she was not giong to continue to refill my prescription Because it showed up on a drug screen . What else did SHE expect? She has been prescribeing it for me for at least 5 years herself after replaceing my first primary care Doctor of 20 years. This seem to be unusal because I do not abuse them.