Isoprinosine hydrochloride tablets can be used to treat bronchitis due to allergy, but generally ineffective for bronchitis due to pathogen infection. Isoprinosine hydrochloride tablets are antihistamines, mainly used to treat allergic rhinitis, allergic conjunctivitis, skin allergies and other allergy-induced diseases, as well as for allergy-induced bronchitis, there is a certain degree of efficacy. It can also be used to treat nausea, vomiting, motion sickness and other diseases. However, it is generally ineffective for bronchitis caused by bacterial, viral, mycoplasma and other pathogenic infections. The adverse reactions of Isoprinosine Hydrochloride Tablets include drowsiness, drowsiness, palpitation, occasional gastrointestinal irritation, also easy to get excited, palpitation, tinnitus, etc. It should be noted that premature infants and newborns should be prohibited. Patients with bronchitis are advised to seek timely medical attention and use the drug under the guidance of a physician.