Metoprolol succinate is one of the beta blockers used as part of evidence-based treatment for certain forms of chronic heart failure.
Despite that benefit, changes in heart failure symptoms can occur, particularly during treatment adjustments or if the patient’s condition changes.
Contact a healthcare professional if you notice:
Rapidly worsening shortness of breath
Increasing swelling of the legs or ankles
Sudden or rapid weight gain from fluid retention
Difficulty breathing while lying flat
Severe fatigue that is clearly worsening
Serious Allergic Reactions
Severe allergic reactions to metoprolol are uncommon but possible.
Emergency symptoms can include:
Swelling of the lips, tongue, face, or throat
Difficulty breathing
Severe widespread rash
Collapse
These symptoms require urgent medical attention.
Metoprolol Can Mask Some Signs of Low Blood Sugar
This is especially important for people with diabetes who use insulin or medicines capable of causing hypoglycemia.
Beta blockers can reduce some typical warning signs of low blood sugar, particularly a racing heartbeat or tremor.
