<s>[INST] for prostate cancer is a 6 month shot better or not then the monthly shot? my husband is currently on the monthly shot. he is undecided which to do.he has been on monthly for 6 months now. his total treatment will last for 18 months. he was told his cancer was very early stage. and mild . [/INST] monthly shot is better. there are no 6 month shots but once in 3 months shots are there. none is superior one over the other. </s>