Compare Toprol XL vs. Lopressor

Head-to-head comparisons of medication uses, side effects, ratings, and more.

Toprol XL
(metoprolol succinate)

Lopressor
(metoprolol tartrate)

Lowers blood pressure and controls heart rate. Toprol XL (metoprolol succinate) is good for controlling chest pain, treating heart failure, and heart attack. It has the added benefit of being taken once a day.Lowers blood pressure and controls heart rate. Lopressor (metoprolol tartrate) lowers high blood pressure, controls chest pain, and helps treat heart failure and heart attack. You need to take it with food and can't miss a dose.
Reviews & ratings
Filter group. All currently selected
Filter group. All currently selected
5.2Toprol XL
Reviews for Toprol XL
60%
of people (All ages) say Toprol XL is worth it
54%
say it works well
13%
say it's a big hassle
164 reviews
Have you used Toprol XL (metoprolol succinate)?
Worth itNot sureNot worth it
Reviews for Lopressor
62%
-2% worse vs. Toprol XL
47%
+7% better vs. Toprol XL
15%
+2% better vs. Toprol XL
464 reviews
Have you used Lopressor (metoprolol tartrate)?
Worth itNot sureNot worth it
Side effects
Toprol XLLopressor
  • Tiredness 10%
  • Dizziness 10%
  • Depression 5%
  • Skin rash and itching 5%
  • Diarrhea 5%
  • Shortness of breath 3%
  • Slower heartbeat 3%
  • Dizziness/balance problems 1%
More Toprol XL side effects »
  • Tiredness 10%
  • Dizziness 10%
  • Depression 5%
  • Diarrhea 5%
  • Itching or skin rash 5%
  • Shortness of breath 3%
  • Slowed heart rate 3%
  • Low blood pressure 4%
More Lopressor side effects »
How it works
Toprol XLLopressor
Toprol XL (metoprolol succinate) is a beta blocker. It lowers blood pressure by slowing heart rate, relaxing blood vessels, and lowering the body's fight-or-flight response.Lopressor (metoprolol tartrate) is a beta blocker. It lowers blood pressure by slowing your heart rate, relaxing blood vessels, and lowering the body's fight-or-flight response.
Type of medication
Toprol XLLopressor
Prescription onlyPrescription only
Available as
Toprol XLLopressor
  • Extended release
  • Pill
Used for
Toprol XLLopressor
Risk factors for serious side effects
Toprol XLLopressor
  • Sudden discontinuation of medicine
  • Coronary artery disease
  • Diabetes
  • Hyperthyroidsim
  • Heart failure
Detailed Toprol XL (metoprolol succinate) risks & warnings »
  • Suddenly stopping Lopressor (metoprolol tartrate)
  • Coronary artery disease
  • Diabetes
  • Heart failure
  • Major surgery requiring anesthesia
Detailed Lopressor (metoprolol tartrate) risks & warnings »
Pregnancy

Research studies with animals found harmful effects on unborn babies. It hasn’t been properly studied in humans. The benefits might outweigh the risks even if you’re pregnant. Talk with your doctor.

Research studies with animals found harmful effects on unborn babies. It hasn’t been properly studied in humans. The benefits might outweigh the risks even if you’re pregnant. Talk with your doctor.

Food
Toprol XLLopressor
No food related info.
  • You need to take Lopressor (metoprolol tartrate) with food twice a day for it to work best.
Pain
Toprol XLLopressor
No pain related info.
  • Makes pain episodes less frequent and makes it easier to be active without having chest pain.
Upsides and benefits
Toprol XLLopressor
  • A first-choice treatment to prevent chest pain (angina). It makes attacks less frequent and helps you be more active without having chest pain.
  • Toprol XL (metoprolol succinate) is a first-choice treatment for heart failure since it may prevent long-term heart damage.
  • It's also a first-choice for heart attack treatment since it lowers the risk of death during and after a heart attack.
  • Toprol XL (metoprolol succinate) is the extended release version of metoprolol tartrate and only needs to be taken once a day.
  • It's available as a generic and is relatively cheap.
  • A first-choice treatment to prevent chest pain (angina).
  • Makes pain episodes less frequent and makes it easier to be active without having chest pain.
  • A first-choice treatment for people who've had a heart attack.
  • Lopressor (metoprolol tartrate) lowers the risk of death during and after a heart attack.
  • Lopressor (metoprolol tartrate) is cheaper than the extended release version.
Downsides and risks
Toprol XLLopressor
  • Taking a beta blocker can make you feel more tired or out of breath during exercise or normal daily routines. This gets better for most people, but for some this may not go away.
  • It's not a first-choice treatment for high blood pressure according to the latest guidelines, except if you have heart failure or heart disease.
  • Toprol XL (metoprolol succinate) can hide symptoms of low blood sugar if you have diabetes.
  • You can't miss doses. Stopping Toprol XL (metoprolol succinate) suddenly can cause your blood pressure to go up quickly, which increases your risk of heart attack and stroke.
  • You need to take Lopressor (metoprolol tartrate) with food twice a day for it to work best.
  • Taking Lopressor (metoprolol tartrate) may make you feel more tired or out of breath during exercise or your normal daily routines. This gets better for most people, but for some it may not go away.
  • Not a first-choice treatment for high blood pressure, unless you have heart failure or heart disease. It can also be added to other medicines if your blood pressure is still too high.
  • Can hide symptoms of low blood sugar if you're diabetic.
  • You can't miss doses. Stopping Lopressor (metoprolol tartrate) suddenly can cause your blood pressure to go up suddenly, which raises the risk of heart attack and stroke.
Tips from our pharmacists for people taking the medication
Toprol XLLopressor
  • Toprol XL (metoprolol succinate) cause dizziness in the first few days.
  • Check your blood pressure 1 week after starting this medicine and let your doctor know if it hasn't improved.
  • It can make you feel tired or give you headaches.
  • Can hide symptoms of low blood sugar, so be careful taking this if you have diabetes.
  • Don't stop taking this medicine suddenly.
  • This is the extended-release version, but it also comes in an immediate-release form, metoprolol tartrate.
  • You should take Lopressor (metoprolol tartrate) with or after meals.
  • Lopressor (metoprolol tartrate) can make you feel dizzy for the first few days. It can also cause fatigue and headaches.
  • Check your blood pressure 1 week after starting this medicine, and tell your doctor if it hasn't improved.
  • Can hide symptoms of low blood sugar. Be careful if you're diabetic.
  • Don't stop taking this medicine suddenly unless your doctor tells you to.
  • This is the immediate release version of the medication, so it needs to be taken twice a day. It's different from the extended release form: Toprol XL (metoprolol succinate).
Learn more
More about Toprol XLSide effectsReviews & ratingsAlternativesFDA package insert
Have you used Toprol XL (metoprolol succinate)?
Worth itNot sureNot worth it
More about LopressorSide effectsReviews & ratingsAlternativesFDA package insert
Have you used Lopressor (metoprolol tartrate)?
Worth itNot sureNot worth it