The FDA approved EDTA for its metal-binding ability but has since issued the following warning: “The two EDTA drugs have established names that are easily confused and both are referred to in clinical practice as "EDTA." This confusion has resulted in medication errors in which some patients have received the wrong drug, which has been fatal in some cases or caused serious adverse reactions in others. The error is especially dangerous when edetate disodium is erroneously given to a patient who is supposed to receive edetate calcium disodium.
The two EDTA drugs have different approved uses and significantly different effects. Risks are low when infusion protocols are followed.
Summary of the response to Dr. Michael Gerber's article "Thirty Years of Progress in Cardiovascular Heath", Townsend Letter Oct 2011: view
Los Angeles, CA (updated) - A randomized, double-blind trial of chelation therapy has suggested that the alternative-medicine mainstay may modestly improve clinical outcomes in patients after an acute MI, leaving its own investigators and other knowledgeable observers scratching their heads.
EDTA: Ethylene Diamine Tetra Acetic Acid - A Review by E. Blaurock-Busch, published Occupational Medicine & Health Affairs 2016 4:4
Chelation therapists around the world incorporate EDTA treatments in their daily practice, often unaware of the chemical differences of the various chelating agents. Misunderstandings increase the risk of iatrogenic accidents. This information aims to prevent this.
Information from the American Heart Association regarding the TACT Study. Nov. 13, 2013
Patients with diabetes mellitus, when compared with patients without diabetes mellitus, demonstrated a major reduction in the primary end point, and consistent reductions in the individual components of the primary end point.
L. Terry Chappel MD1 & John F. Stahl PhD2. The Correlation between EDTA Chelation Therapy and Improvement in Cardiovascular Function: A Meta-Analysis. J of Advancements in Med. vol 6, #3, 1993
A thorough literature search identified 40 articles on the subject. Nineteen studies met the criteria for inclusion with data on 22765 patients. The meta-analysis revealed a correlation of 0.88, which indicates a high positive relationship between NaMgEDTA therapy and improved cardiovascular function. Eighty-seven per cent of the patients included in the meta-analysis demonstrated clinical improvement by objective testing.
1 Assistant professor at Wright State School of Medicine.
2 Prof. of Electrical Engineering and Director of Cooperative Education at Ohio Northern University College of Engineering.
Na2EDTA is referred to as Ethylene diamine tetraacetic acid disodium salt or in short Sodium EDTA. It easily binds with calcium, hence its use in the treatment of hypercalcemia and of atherosclerotic disease. It must be noted that administering a Na2EDTA infusion in too short of time can potentially cause a state of hypocalcemia. Na2EDTA should not be used in children or patients suffering from parathyroid disease.
CaEDTA is the calcium salt of Ethylene diamine tetraacetic acid, also referred to as Calcium Ethylene diamine tetra-acetic acid. Since it is bound to calcium, it will not be effective in removing calcium. t can potentially induce a state of hypercalcemia and should not be used in children or patients suffering from parathyroid disease. Bolus injections are not recommended.