Heart rate 110~120 usually need to choose the drug treatment according to the primary disease, when there are obvious symptoms, you can choose adenosine, verapamil and other drugs treatment. Usually normal adults in a quiet state, the normal range of heart rate in the 60 ~ 100 beats / min, when the heart rate > 100 beats / min, it belongs to sinus tachycardia, heart rate 110 ~ 120 belongs to sinus tachycardia. If it is caused by emotional excitement, alcohol consumption, internal activities and other physiological factors, generally do not need to take medication. If the sinus tachycardia is caused by hyperthyroidism, heart failure, application of adrenaline and other drugs, you need to choose drugs to treat the primary disease. For example, hyperthyroidism requires the selection of methimazole and methylthiouracil, and heart failure requires the selection of drugs such as furosemide and metoprolol, as well as the discontinuation of drugs related to the cause of sinus tachycardia. If there are more obvious palpitations, accompanied by fear, polyuria and other symptoms, if necessary, you can choose adenosine, verapamil and other drugs to treat. When persistent tachycardia occurs, beta-blockers such as metoprolol can also be used to slow down the heart rate. When the above symptoms occur, it is recommended to go to the hospital in a timely manner, under the guidance of the doctor to identify the cause of the disease and then symptomatic treatment, do not blindly use their own medication.