budesonide + formoterol + terbutaline

This is not a single combination product but a treatment regimen studied in asthma management. It involves three components: budesonide (an inhaled corticosteroid), formoterol (a long-acting β2-agonist), and terbutaline (a short-acting β2-agonist). In clinical trials, these medications were used in different combinations and regimens to evaluate their effectiveness in controlling asthma symptoms and preventing exacerbations. Studies have compared different approaches such as using budesonide as maintenance therapy with terbutaline as a reliever, versus using budesonide-formoterol combination both as maintenance and reliever therapy.