When first taking antiarrhythmics, patients should avoid operating heavy machinery (e.g., driving) until they know how the medication will affect them. Most patients on medication to treat arrhythmias will be taking it for the rest of their lives, provided no serious side effects occur. Patients should remember that antiarrhythmics control abnormal heart rates, but do not cure them. Even if all their symptoms are relieved, patients should continue to take their medication exactly as directed. They should also keep all scheduled follow-up appointments with their physicians. In addition to taking medication, patients may be advised to make lifestyle modifications, especially concerning diet, exercise and stress management.