No - not particularly. MMS has an oxidation potential of .95v, and thus is attracted to the pathogens and things that are below .95v. (the various body tissues and cells are much higher than that) - Yes, the chlorine dioxide ion does give up 5 oxygen molecules in the process of going after the bad guys, but those oxygens are then "spent" - they can't go bouncing around damaging other cells or tissues. They're removed in the H2O breathing cycle. (That's a simplified "how it works" - Jim's book is much clearer and more thorough - I recommend it highly) -
MMS does not remove anti-oxidents. And because of the way it works, it doesn't provide free radicals.
The only exception I would make is - if you've got atherosclerosis, that is thought to be a shortage of Vitamin C - I'd definitely do Vitamin C to tolerance, 2 hours after your last dose (or 2 hours before your first dose) -
All that said - Jim has stated that when you are healing you need to provide your body with the nutritional elements it needs for healing - So, I'd take antioxidents - NOT because MMS has somehow removed them - but just to add them to your body, which may be deficient in them - again, 2 hours before or 2 hours after.