['To determine whether beta-blocker withdrawal under close medical supervision poses undue risks.', 'Retrospective case review. Data extracted from previous study.', '114 hypertensive subjects tapered from beta-blocker therapy. Subjects were a subset of patients originally studied for blood pressure medication withdrawal and biofeedback training.', 'Frequency of symptoms and adverse effects reported by subjects during medication taper to the study nurse.', 'Symptoms were no more likely to occur with beta-blocker withdrawal than with withdrawal of other types of antihypertensive medications. Most adverse effects were classified as minor. Two subjects experienced major symptoms. One subject required reinstitution of beta-blockers for palpitations, and another exhibited angina upon beta-blocker withdrawal.'] Does close clinical observation minimize the complications of beta-blocker withdrawal?