For people taking Toprol-XL, precautions and warnings to be aware of with the medication concern such things as the dangers of stopping the drug abruptly. Some other precautions and warnings for Toprol-XL users have to do with the drug's potential to cause extremely low blood pressure. Certain people should not take the medication, such as those with serious congestive heart failure.
Tell your healthcare provider about all other medicines that you may be taking, including prescription and non-prescription medicines, antacids, vitamins, and herbal supplements.