Some side effects with
Lopressor should be reported immediately to your healthcare provider. These include but are not limited to:
- Unexplained swelling or sudden weight gain (see Metoprolol and Weight Gain)
- Chest pain
- Dizziness, lightheadedness, or fainting spells
- Confusion
- An irregular heartbeat (arrhythmia)
- Signs of an allergic reaction, including:
- Unexplained rash
- Hives
- Itching
- Unexplained swelling
- Wheezing
- Difficulty breathing or swallowing.
Rare Lopressor Side Effects
Rare side effects occurred in less than 1 percent of people taking Lopressor. Given how uncommon these side effects are, however, it can be difficult to tell whether they are actually caused by the medication or something else.
Some of these rare Lopressor side effects include:
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