Simmering the bark in an acidic aqueous solution will extract the DMT and other alkaloids from the plant material, however, DMT is not orally active unless taken with an MAO inhibitor. An enzyme called Monoamine Oxidase is present in your gut and will break down DMT before it is absorbed in the bloodstream and carried to your brain. An MAOI, or Monoamine Oxidase Inhibitor, will prevent Monoamine Oxidase from breaking down the DMT so it can then be carried to your brain. Effective MAOI's are found in the seeds of Peganum harmala and the vine sections of Banisteriopsis caapi. Be very careful when using MAOI's. MAO normally metabolizes an amino acid in the gut called tyramine. When MAO is inhibited, tyramine levels in the bloodstream rise and can trigger a hypertensive crisis, which in a best case scenario will cause the most painful headache of your life, and in a worse case scenario may cause death. It is important to abstain from tyramine-rich foods for a period of 12-24 hourse before and after drinking an ayahuasca brew containing MAO Inhibitors. All of this information can be found at the ayahuasca FAQ:
http://ayahuasca.com/cgi-bin/faq.pl (http://ayahuasca.com/cgi-bin/faq.pl)