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Lopressor vs. Toprol XL

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.

• High blood pressure
• Chest pain (angina)
• Lower risk of death after a heart attack

• Tiredness (10%)
• Dizziness (10%)
• Diarrhea (5%)
• Rash (5%)
• Depression (5%)

• Risks of stopping treatment suddenly
• Worsening heart failure
• Risk of difficulty breathing
• Major surgery
• Hiding symptoms of low blood sugar
• Hiding symptoms of overactive thyroid
• Severe allergic reactions

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.

• High blood pressure
• Chest pain (angina)
• Lower the risk of hospitalization and death in heart failure

• Tiredness
• Dizziness
• Depression
• Diarrhea
• Trouble catching your breath
• Drop in heart rate
• Rash

Please note: The side effects above occurred in 2% or more of people taking metoprolol succinate (Toprol XL).

• Heart problems after suddenly stopping the medication
• Worsened symptoms of heart failure
• Risk of difficulty breathing
• Rise in blood pressure in people with pheochromocytoma
• Greater risk during surgery
• Hiding symptoms of low blood sugar
• Masked symptoms of overactive thyroid