Retail Cost Of Victoza = 3 pen box is 499.98. Discussion in 'Novo Nordisk' started by Anonymous, Apr 8, 2010 at 8:43 PM. Page 1 of 4 1 2 3 4 Next >. #1 Anonymous, Apr 8, 2010 at 8:43 PM. look it up on drugstore D0T C0M. Byetta 5 MCG Pen 5mcg/0.02ml Solution, 1.2ml Pen = $264.63. Byetta 10 MCG Pen 10mcg/0.04ml Solution, 2.4ml Pen = $271.45. Victoza 18mg/3ml Solution, 1 Box contains two 3ml Pens = $279.97. Victoza 18mg/3ml Solution, 1 Box contains three 3ml Pens = 399.98. If they are on medium dose Vict - we have a fighting chance. If they take max dose theye is significantly higher price.