This Recent Article on PCA-RX should answer yor question
by
From The Doctors Prescription for Healthy Living
Article entitled Mental Illness and Heavy Metal Toxicity by David Steinman
Volume 6 number 5 2002 page 27 paragraph 9
Unlike chelation which may described as a one dimensional sequestering process,the bacterially derived glycoproteins in PCA-RX bind heavy metals with three different types of bonds and include them within their latticelike framework (i.e., clathrate ) to ensure rapid transport from the body without furthur tissue interacitions. Because PCA-RX eliminates the source of the toxicosis, it can help in a meaningful
manner to promote mental well being.