Hello, Naylor (Propranolol) is a commonly used medicine for treating hypertension, angina pectoris and tachyarrhythmia. When you say nervous, do you mean easily flustered? If so, propranolol can really reduce myocardial oxygen consumption and slow down the heart rhythm, and is suitable for arrhythmia symptoms such as tachyarrhythmia, hypertension, stable angina pectoris and sinus tachycardia. It is also effective for accelerating the heart rhythm caused by mental stress. Therefore, it can be used, but for long-term users, there may be a rebound phenomenon that the original symptoms may suddenly increase after stopping the drug. I suggest you try Anshen Buxin Capsule, which has a good effect.