Tocainide is sometimes prescribed to control ventricular arrhythmias–fluctuations in heart rhythm that affect the upper chambers of the heart. This medication helps regulate heart activity and keep the heart beating more steadily.
Some patients may develop a worse irregularity in their heartbeat when on this medication. Call your doctor immediately if you have any of the following symptoms:
This medication may also cause allergic reactions. Get emergency assistance if you have swelling of the face, tongue or throat after taking this medication.
- Fast or pounding heartbeat
- Difficulty breathing
- Chest pain
- Extreme fatigue