Question: I have back pain and the doctor has prescribed lidocaine patches for me. Two months ago I had a heart attack and had two stents implanted. Can these patches affect the functioning of the heart? Esteban (Ciudad Real).
Answer: Treatment of pain with lidocaine transdermal patches is a safe treatment for patients who have been treated with stents. The only precaution you have to take is if you are taking any heart rhythm medication (flecainide, propefenone), as they can be affected by lidocaine patches. Check with your cardiologist if you receive any such treatment.