Propranolol is prescribed for patients suffering from high blood pressure. Even if your condition improves it's important to continue taking this medicine for as long as your health care provider recommended. High blood pressure, or hypertension, often does not have any symptoms, so feeling better does not mean that the problem is gone. If you think that propranolol is not working for you it's recommended to consult your health care provider and ask him to adjust your dosage or prescribe some other method of treatment for your hypertension. Take this medicine in accordance with your doctor's advice.