Russ, if you don't feel any effect from the DMSA this round, then perhaps you could add ALA next round or the round after. Perhaps you could try 12.5 mg of ALA +25 mg DMSA every 3 hours. At the end of the round, your last few doses could be just DMSA. Some people get a strong reaction to ALA, although the reaction is much less when taking DMSA with the ALA. ALA might be a great help for the brain fog.