Hi, Advair is used in the treatment of asthma and chronic obstructive pulmonary disease or COPD as well as their associated symptoms such as shortness of breath, breathing difficulties, wheezing, chest tightness etc.This medication should be used in the doses and duration as directed by the prescribing doctor. But like other medications this medication has some side effects of its own. Advair may cause increased heart rate or tachycardia. Tachycardia may occur in the groups of receiving Advair with an incidence of 1% to 3% according to the researchers. If tachycardia persists for long or bother you then you should consult your doctor immediately for medical help. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Zubayer Alam, General And Family Physician,