For laparoscopic oophorectomy, because of the high surgical skill fee for laparoscopic oophorectomyin Japan ($1,350 versus $640 for laparotomy),there was no reduction in overall costs compared with conventional oophorectomy ($2,720 versus $2,530). The greatest economic savings were in the use of postoperative medication ($50 versus $320), as patients experienced less pain with laparoscopic oophorectomy, and in stay ($70 versus $230). The total cost of tamoxifen was stated to be $2,511 per year (20mg per day at cost of $6.88).