Some side effects with Bystolic, while occurring infrequently, are potentially serious and should be reported to your healthcare provider immediately. These may include:
- Lightheadedness or fainting, which can be a sign of dangerously low blood pressure (hypotension)
- A slow heart rate (bradycardia)
- Difficult or painful breathing.
As with all beta blockers, you should not abruptly stop taking Bystolic, as dangerous problems (including
heart attacks) may result. Your healthcare provider will advise you on how to safely stop taking this medication. It is usually recommended to slowly reduce the dose over a period of one to two weeks, with careful monitoring. Let your healthcare provider know if you develop chest pain or any other problems while stopping Bystolic.