what is metoprolol succinate
Metoprolol ER (metoprolol succinate, extended release) is in a drug class called beta blockers. Metoprolol ER is used alone or combined with other medications to treat high blood pressure. Metoprolol ER is also used for the long-term management of angina. Metoprolol ER is also used to treat heart failure.etoprolol is used in the treatment of hypertension (high blood pressure) and angina (chest pain). Some of the more common side effects of metoprolol are fatigue, dizziness, diarrhea, itching, rash, depression, and slow heartbeat. Blood pressure measures how hard your heart is working to pump blood through your body.