How long on a maintenance dose? We're still in the experimental phases with Miracle-Mineral-Supplement , and besides that would vary with each person anyway. At least a couple months wouldn't hurt.
It's doubtful though that pathogens could develop a resistance to Miracle-Mineral-Supplement given the manner in which Miracle-Mineral-Supplement disables and kills them; it accepts electrons from electron donors and all pathogens are electron donors, according to the research.