The generic name of Dupro Inhaler is budesonide formoterol powder inhaler, which can be used in the routine treatment of asthma. Budesonide formoterol powder inhaler is a compound preparation composed of budesonide and formoterol, in which budesonide has anti-inflammatory effect and formoterol has the effect of diastolic bronchial smooth muscle, and the combination of the two can alleviate bronchospasm and reduce asthma symptoms. It is used in the routine treatment of asthma and is indicated for those who require the combined application of inhaled long-acting beta2 agonists and glucocorticoids, but not for severe asthma attacks. Adverse reactions such as tremor, headache, palpitations, throat irritation, oropharyngeal candida infection, cough, and hoarseness have been seen with budesonide formoterol powder inhaler. This product is contraindicated in people who are allergic to budesonide, formoterol or inhaled lactose. This product needs to be rationally used under the supervision of a physician.