Lithium is used for the treatment of bipolar disease (manic depressive disorder).

ECG abnormalities that may be seen frequently in patients with lithium intoxication

  Sinoatrial block

  Sinus bradycardia

T wave abnormalities: Negative, biphasic or flattened T waves

ECG abnormalities that may also be seen (albeit less frequently) during lithium intoxication

  Prolonged QT interval

  First degree AV block

  Brugada pattern

  Supraventricular tachycardia

  Ventricular tachycardia


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