PROBLEM TO BE SOLVED: To provide a new therapeutic agent for drug dependence.SOLUTION: The therapeutic agent for drug dependence comprises a free radical scavenger as an active ingredient. The drug is preferably a central nervous system stimulant, a central nervous system depressor, an opioid analgesic medicine or a psychotomimetic medicine.COPYRIGHT: (C)2009,JPO&INPIT【課題】新規な薬物依存症治療剤を提供すること。【解決手段】フリーラジカルスカベンジャーを有効成分として含有する薬物依存症治療剤。【選択図】なし