A kind of to use what pharmaceutical composition for treating drug addiction, described pharmaceutical composition includes the gelsemium elegan and datura flower that crude drug weight ratio is 2:1~6:1, and optionally includes pharmaceutically acceptable excipient.一種用於戒毒的藥物組合物,所述藥物組合物包含原藥材重量比爲2:1~6:1的斷腸草和洋金花,並且任選包含藥學上可接受的賦形劑。