Shots can be expensive since they have to be blended at a compounding pharmacy ..mine are 85.00 to 120.00 a bottle depending on the mix good for about a month and about 16 injections depending on the dose you are using ..can use the needle every other day ... Go on YouTube and look at the different surgeries on penile implants that is what I do before I make any major choices .. if your diabetic will make a difference which implant they will be willing to use so I was told ..they like to use the mallable one since the infection rate is lower in diabetics ..