Head-to-head comparisons of medication uses, side effects, warnings, and more.
Key takeaways
Metoprolol succinate (Toprol XL) and metoprolol tartrate (Lopressor) are both beta blockers used to treat high blood pressure and chest pain (angina). However, they have some important differences. Metoprolol succinate (Toprol XL) is an extended-release medication taken once daily and is also approved to lower the risk of hospitalization and death in people with heart failure. In contrast, metoprolol tartrate (Lopressor) is a short-acting medication taken twice daily and is approved to lower the risk of death after a heart attack. Both medications can cause side effects like tiredness, dizziness, and diarrhea. Also, both medications can hide symptoms of low blood sugar, so you should be aware of that if you have diabetes. Both medications are available as a lower-cost generic.
Metoprolol succinate (Toprol XL)
Metoprolol tartrate (Lopressor)
Metoprolol succinate (Toprol XL)
Metoprolol tartrate (Lopressor)
Summary of Toprol XL vs. Lopressor
Summary for Beta blocker
Prescription only
Metoprolol succinate (Toprol XL) is used to treat hypertension and to control chronic (long-term) chest pain. It's also used to lower the risk for hospitalization and death in people with heart failure. Metoprolol succinate (Toprol XL) is the extended-release version of metoprolol tartrate (Lopressor), but keep in mind the two versions don't treat the exact same conditions. And because metoprolol succinate (Toprol XL) is longer-acting, it's taken by mouth typically taken just once daily. Some common side effects of metoprolol succinate (Toprol XL) include tiredness or dizziness.
Summary for Beta blocker
Prescription only
Metoprolol tartrate (Lopressor) is a beta blocker used to treat chest pain and high blood pressure in adults. It can also lower the risk of death after a heart attack. You take it by mouth, typically once or twice a day, but your dose depends on your condition. Side effects include dizziness, shortness of breath, and it can make you tired.
Indications of Toprol XL vs. Lopressor
Indications for
•High blood pressure
•Chest pain (angina)
•Lower the risk of hospitalization and death in heart failure