Oral liquid formulation having improved stability comprising ambroxol and levodropropizine

摘要

The present invention provides ambroxol or a pharmaceutically acceptable salt thereof; Levodropropizine or a pharmaceutically acceptable salt thereof; And relates to an oral liquid formulation comprising sodium pyrosulfite, the oral liquid formulation of the present invention exhibits a high synergy and medication compliance of patients by combining ambroxol and levdropropidin with different mechanisms of action In addition, it shows excellent storage stability using sodium pyrosulfite, it can be usefully used as a therapeutic agent for acute respiratory disease without changing the efficacy for a long time.