I was diagnosed with Gleason score 6 prostrate cancer in April (low grade). I started on Fenben and Ivermectin (444mg X2/day, 24mg Ivm 1X/day) about 2 months ago. I have an MRI scheduled for next week and should be getting a biopsy a week or two after that assuming the MRI is showing targets. I've read where taking both has a synergistic effect on the cancer, hopefully that's the case. Anyway, I'll report back with my results probably in about a month. But that will be a good test case since I've not missed a dose and started the routine about a month after diagnosis. I'll try to pinpoint the start date a little better but I should be about 2.5 to 3 months of dosing prior to the MRI and 3 months prior to the biopsy.