NRT is generally very safe in people with stable heart disease or controlled high blood pressure. We recommend that you check with your doctor before using NRT if you have palpitations, an irregular heartbeat, a pacemaker, have had a heart attack within the past two weeks, chest pain that has been increasing or severe within the past month, or high blood pressure that is not controlled.
Medical review: Nathan Cobb, MD, September 12, 2017
Fiore MC, Jaén CR, Baker TB, Bailey WC, Benowitz NL, and Curry SJ. Treating tobacco use and dependence: 2008 update. Treating tobacco use and dependence: 2008 update. Clinical; 2008;.