No, Suboxone does not cause heart problems. This is not a common side effect of Suboxone. Patients with prior cardiac disease can safely take Suboxone.
Less than 1% of patients have occasionally reported the feeling of heart palpitations with Suboxone. Heart palpitations are sensations that the heart is beating rapidly or going too fast. However, this is not a sign of any true damage to the heart. Anxiety and opioid withdrawal themselves can cause the sensation of palpitations.