Hello Papillion. I have been using Breathe Easy tea for over 10 yrs. It has been helpful with opening airways and relieving that tight feeling in my chest and no side effects. Like Sue had mentioned; the amount of licorice root in it is not enough to cause adverse effects. If I remember correctly; too much licorice can negate high blood pressure meds. Let us know if you decide to try it and tell us if it helped you. I chaired a Better Breather's meeting once for The American Lung Association, and took a box of Breathe Easy tea. We had a pot of hot water brewing in the room and each person there got to have a cup of this tea. The response was overwhelming. Many there stated that they felt some relief after drinking it and were grateful to learn about it.