PropranololPropranolol is a beta blocker used to treat different heart and circulatory conditions in patients to whom it was prescribed. Warn your doctor about any health conditions you have and that may somehow affect your treatment. Such conditions include congestive heart failure or other heart problems, depression, liver or kidney disease, thyroid disorder, problems with circulation, slow heart rate, bronchitis, breathing disorders, diabetes or low blood pressure. Depending on your particular situation the doctor may decide you need to stop taking propranolol or your dose will be reconsidered to make sure you benefit from the treatment prescribed. (c) 2010