Shrugging off a boycott by opposition parties, the Upper House on Tuesday enacted a 3.77 trillion yen supplementary budget for the current fiscal year.

According to the House of Councilors secretariat, no extra budget had been enacted in the absence of the opposition parties since 1966.

The opposition camp -- which is demanding Health, Labor and Welfare Minister Hakuo Yanagisawa resign for calling women "child-bearing machines" -- had refused to participate in budget deliberations since last week.