Of course, the other medications that she's taken are needed for other medical issues. They are Atenalol for Postural Orthrostatic Tachycardia Syndrome (POTS), which is a disease where your blood pressure drops and your heart rate increases when changing positions or standing for a long period of time. In her case, she gets out of breath from going up and down the stairs, dizziness occurs when bending or looking up; and these all cause her heart to race rapidly. She could only stand for 5 mins. and her heart increases by 25-30 bpm in such a short time. She also takes Cymbalta for the intense pain from RSD and Vitamin D because her level is low because her bones are brittle from the RSD.