It can cause various side effects like dizziness, flushing, headache, slow heartbeat, vomiting, diarrhea, swelling of face, eyes, lips, lower legs, difficulty in breathing, rash, fatigue, unusual bleeding or bruising and increased frequency and severity of chest pain. There are no known withdrawal symptoms
and caution should be exercised to not stop it abruptly for possible rebound hypertension. Consult with your physician for the best advice. Hope this helps. Take care.