As I am not a Dr. I cannot answer your question, but, I can share with your what is posted on the Dexilant WEB MD site.
Tell your doctor immediately if you have: heartburn with lightheadedness/sweating/dizziness, chest pain or shoulder pain (especially with trouble breathing, sweating, lightheadedness, pain spreading to arms/jaw/neck/shoulders)
I am sure other members may have personal experiences they will be along to share with you.
Welcome to HealingWell.
Kindly,
Kitt