I personally believe your playing with fire. I know someone who used (HMC) Heavy Metal Cleanse and became very sick after using this method of detox. I wouldn't even attempt using it. ALA shouldn't be messed around with like this. 20mgs is too much in my opinion, even if you cut to 10mgms for a short time, then switching back up to the full dose of 20mgs. Trying to get better quicker using these methods is asking for trouble. It would be nice to think that we could all improve our health at a rather quick pace and return to health via quickest way possible, but alias, it dosen't work that way. You should consider using either DMSA to reduce your body burden of mercury first, then use DMSA/ALA to sort out the remaining levels of mercury in your brain. You could use oral DMPS if you can't tolerate DMSA due to yeast flare ups. Finding a good doctor for DMPS would be advisable "if" possible. I know that a UK hospital called Breakspear uses proper chelating therapy which is backed up with 20yrs of specialist treatment in dealing with heavy metal toxicity. I think your rushing this process to quickly to get better and I understand how you feel. You can purchase DMSA and ALA from a good site called living network. http://www.livingnetwork.co.za
They sell both DMSA & ALA in lower & higher doses as well. I would start DMSA at a lower dose to begin with, then after a number rounds increase "if" you can tolerate it. Yeast can often be a problem. Some people are able to manage but others may not be able to deal with the yeast flare ups. Then another option may be needed. DMPS oral would be a better idea if the DMSA isn't successful for you. I certainly wouldn't use (HMC) that's for sure.