Metoprolol tartrate, while generally safe, can cause side effects. Common ones include dizziness, fatigue, and nausea. These usually lessen as your body adjusts to the medication. However, promptly report any persistent or worsening symptoms to your doctor.
Cardiovascular Effects
Metoprolol lowers heart rate and blood pressure. This can sometimes lead to bradycardia (slow heart rate), hypotension (low blood pressure), or worsening of existing heart conditions like heart block. Monitor your pulse regularly and inform your physician if you experience lightheadedness or fainting. Certain pre-existing conditions necessitate careful monitoring and dosage adjustments.
Other Potential Side Effects
Less frequent but still possible side effects include shortness of breath, sleep disturbances, cold extremities, and gastrointestinal issues. Allergic reactions, though rare, can manifest as skin rashes or swelling. Serious side effects are uncommon but require immediate medical attention. These include severe allergic reactions (anaphylaxis), worsening of heart failure, and significant changes in your mental state. Seek immediate medical help for any concerning symptoms.
Managing Side Effects
Your doctor can help manage side effects through dosage adjustments, medication changes, or other supportive care. Open communication is key to safe and effective treatment. Report all side effects, both mild and severe, to ensure you receive appropriate medical management.


