Find patient medical information for Metoprolol Tartrate Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Metoprolol is a beta-blocker that affects the heart and circulation (blood flow through arteries and veins). Metoprolol is used to treat angina and hypertension (high blood pressure). Important Information. You should not use Metoprolol Tartrate Tartrate if you have a serious heart problem (heart block, sick sinus syndrome, slow heart rate), severe circulation problems, severe heart failure, or a history of slow heart beats that caused fainting. Hi, I've been taking both flecainide and metoprolol now for eight years, as a prophylactic for Afib. I recently moved to North Carolina and have a new Cardiologist. Metoprolol is the generic form of the brand-name drug Lopressor, prescribed to treat high blood pressure and prevent angina (chest pain). Metoprolol is a type of medication called a beta blocker. Metoprolol oral tablet is available as generic drugs and as brand-name drugs. Brand names: Lopressor and Toprol XL. Metoprolol comes as immediate-release and extended-release tablets, and an. Metoprolol is a beta-blocker that doctors often prescribe to treat cardiovascular issues, such as high blood pressure and angina. Different types of metoprolol have different uses. Learn more. Metoprolol is a beta-blocker that affects the heart and circulation (blood flow through arteries and veins). Metoprolol is used to treat angina (chest pain) and hypertension (high blood pressure). Lopressor (metoprolol tartrate) Tablets and Injection is a selective beta-adrenoreceptor blocking agent (beta-blocker) used to treat high blood presure (hypertension), angina, and heart attacks. Find patient medical information for Metoprolol Succinate Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings.