Japanese Prime Minister Taro Aso has appointed Economics Minister Kaoru Yosano to replace Shoichi Nakagawa, who resigned as finance minister Tuesday.
Nakagawa submitted his immediate resignation Tuesday, only hours after saying he would remain in office until parliament approved a national budget.
Opposition lawmakers have been calling for Nakagawa to resign after the minister appeared to be drunk during a G7 news conference in Rome Saturday.
On Monday, Nakagawa denied he was drunk. He said he had only taken a couple of sips of wine before the news conference at the end of the G7 meeting.
Nakagawa had said he would submit a letter to parliament from his doctor to explain how medication caused his slurred speech and drowsiness at the news conference.