MMS and Rectally adminsitered O3 should be synergistic or additive. There is no reason that there should be an adverse chemical reaction between these two forms of treatment.
The MMS activated molocule stays active in your body for up to 2 hours. But there is what doctors and chemist call a "half-life" of any chemical reaction or treatment. From what I can tell from what I have read ; all of the MMS is gone after 12 hours.
By taking your drink after only 60 minutes you are stopping the remaining MMS in your system and not obtaining the maxium benifit from taking it.
Jim Humble in some form (interview I think ) reccomended no Vitamine C for at least 4 hours.