These two salts are not interchangeable because they have different dosages, durations of action, and indications for use.
Metoprolol is available as two different salts: metoprolol tartrate and metoprolol succinate.At high doses, metoprolol succinate also blocks beta-2 receptors within the lungs and breathing tubes (which may affect breathing). Metoprolol succinate is a heart medication that works by blocking the effects of epinephrine on beta-1 receptors within the heart tissue, causing the heart to pump more slowly and with less force.Medically reviewed by Carmen Fookes, BPharm.
Metoprolol-succinate-ER: 7 things you should know
