The total costs per week survival are Can$ 351 for strontium and Can$ 560 for placebo. Mean costs for drugs and radiotherapy were lower for the strontium group (Can$ 375 for strontium against Can$ 900 for placebo and Can $1422 for strontium against Can$ 2351 for placebo). Overall the mean treatment cost per patient for the strontium group was Can$ 16,570 and Can$ 23,688 for placebo. The 1991 cost of a standard dose of Metastron was Can$ 1600, approximately equal to the direct cost savings in the strontium group.