Hi, My Wife Has Been Taking 2mg Of Diazapam For

Hi, My wife has been taking 2mg of Diazapam for the past week, she took her last does at 6am Friday morning and does not intend taking any more. Tomorrow night (Saturday) she says she would like to have an alcoholic drink, she normally only drinks 1 or 2 beers, would this be safe for her or should she wait longer before drinking?