Abstract: Objective To explore the general rule and characteristics of adverse drug reactions/adverse events(ADRs/AEs) induced by ambroxol hydrochloride injection, so as to provide references for rational clinical use. Methods The sex, age, medical reasons, combined medication, medication ways and main clinical manifestation of the patients were statistically analyzed. Results Children are more likely to develop ADRs/AEs induced by ambroxol hydrochloride injection.There is contraindication in drug combination, which is easy to cause turbidity and precipitation after mixing in the infusion tube. Conclusion The clinical manifestations of ADRs/AEs induced by ambroxol hydrochloride are complex and diverse, and there are many contraindications in drug combination.

Key words: ambroxol, adverse reaction, adverse event analysis