Some side effects with Cardizem, while occurring infrequently, are potentially serious and should be reported immediately to your healthcare provider. These include but are not limited to:
Chest pain
Irregular heart rhythm (arrhythmia)
Signs of low blood pressure, such as dizziness, lightheadedness, or fainting
Signs of an allergic reaction, including unexplained rash, hives, itching, unexplained swelling, wheezing, or difficulty breathing or swallowing.
Rare Cardizem Side Effects
Rare side effects occur in less than 1 percent of people taking the drug. Because these side effects are so uncommon, it is difficult to tell whether they are actually caused by Cardizem itself or other factors.
Some of these rare side effects include but are not limited to:
Flushing (redness of the skin, especially the face)