Difference Between Metoprolol Succinate and Metoprolol Tartrate

Metoprolol succinate and metoprolol tartate belong to a class of drugs known as beta-blockers. These drugs treat high blood pressure and other heart conditions by blocking the effects of adrenaline on the heart.

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Metoprolol tartrate treats high blood pressure (hypertension) and angina (chest pain). Doctors also prescribe metoprolol tartrate for people who have had heart attacks. Metoprolol succinate treats hypertension, heart failure and angina.


Metoprolol succinate is an extended-release version of metoprolol, so it remains in the bloodstream and controls blood pressure for a full 24 hours. Metoprolol tartrate does not stay in the bloodstream for 24 hours.


Metoprolol succinate side effects include constipation, dizziness, headache, dry mouth, heartburn, drowsiness, nausea, difficulty sleeping, muscle aches, stomach pain and vomiting. Side effects of metoprolol tartrate include drowsiness, dizziness, fatigue, difficulty sleeping, vomiting, diarrhea, vision problems and unusual dreams.


Taking more than one metoprolol succinate pill at a time can lead to overdose. Overdose symptoms include heart failure, cardiac arrest, coma, loss of consciousness, vomiting, coma, extremely low blood pressure, slow heartbeat and atrioventricular block.


If your pharmacy does not have metoprolol succinate in stock, talk to your doctor before using metoprolol tartrate as an alternative. Your doctor will determine the proper dosage needed to control your blood pressure.