Immediate-release oral (taken by mouth) tablet: Metoprolol tartrate Extended-release oral tablet: Metoprolol succinate ...

and extended-release forms (Toprol XL, Kapspargo). If you are taking metoprolol, it's important to be aware of potential drug ...

Shortly after admission, a patient became lightheaded and fell in the bathroom after a physician prescribed TOPROL XL (metoprolol extended-release) at a dose larger than she took at home.