This research study is testing alendronate, an FDA approved medication for osteoporosis. This medication is not yet approved by the FDA for asthma treatment. The purpose of this study is to find out if alendronate affects the loss of bronchoprotection in patients with asthma who are taking beta-2-agonists. Beta-2-agonists are bronchodialating asthma medications such as albuterol and salmeterol. Bronchodilators are inhaled medicines that relax the muscles in the airway. This makes the airway bigger so it is easier to breathe. They also protect against airway narrowing when you are exposed to your asthma triggers.