When I exercise (very lightly), I get lightheaded, the world dims, and I feel like I may faint. The cardiologist prescribed Toprol XL
only after I called and said symptoms
continued. As with some specialists, this cardiologist is laconic, seems unconcerned, and told me it's my choice as to whether I take the Toprol XL or not. My BP vacillates wildly. Sometimes the blood pumps so hard I can "see" it in my eyes. Can Toprol XL be used PRN or must it be used as daily treatment?