Pharmaceutical composition and preparation method and use of pharmaceutical composition

The present invention provides a pharmaceutical composition. The pharmaceutical composition comprises the following components: cimetidine and gentamicin. The prepared pharmaceutical composition has good effects on prevention and treatment of oral ulcers, has a cure rate of the oral ulcers at 90.6% or more and a total effective rate of the oral ulcers at 93% or more, and has a function of reducingareas of the oral ulcers. 本发明提供一种药物组合物，包括以下组分：西咪替丁、庆大霉素。本发明制得药物组合物在预防和治疗口腔溃疡上具有很好的效果，对口腔溃疡的治愈率达90.6％以上，对口腔溃疡的总有效率达93以上％；所述药物组合物具有减小口腔溃疡面积的作用。