DMSA / DMPS (heavy metal chelators)
Detox · Sulfhydryl chelators
Tier D
Bottom line
Read Off Label grades DMSA / DMPS (heavy metal chelators) as D (3.1/10) based on weak evidence, low benefit magnitude, and a med-high-risk safety profile.
'Mercury toxicity from fillings' is largely pseudoscience driving unnecessary chelation with real iatrogenic risk.
Typical use: Protocols vary by agent and severity; medical supervision required — Rx (DMSA — Succimer / Chemet); DMPS off-label / compounded.
What this is
'Mercury toxicity from fillings' is largely pseudoscience driving unnecessary chelation with real iatrogenic risk. Autism chelation protocols (Geier DMPS) are thoroughly discredited. Legitimate role limited to confirmed elevated blood lead (especially pediatric) or acute heavy metal poisoning. Provocative urine tests are not a valid indication.
Mechanism
2,3-dimercaptosuccinic acid (DMSA/Succimer — oral) and 2,3-dimercaptopropane-1-sulfonate (DMPS — IV/oral); thiol groups bind heavy metals (lead, mercury, arsenic) for renal excretion
Dose & route
Protocols vary by agent and severity; medical supervision required
Citations
- https://pubmed.ncbi.nlm.nih.gov/15082607/
- https://pubmed.ncbi.nlm.nih.gov/18534407/
- https://pmc.ncbi.nlm.nih.gov/articles/PMC3122039/
- https://doi.org/10.3389/fpubh.2026.1750332
Links go to the source. If a link is dead or you want something re-checked, let me know.
Common questions
- Does DMSA / DMPS (heavy metal chelators) work?
- Read Off Label rates the evidence for DMSA / DMPS (heavy metal chelators) as Weak and the benefit magnitude as low, producing an overall grade of D (3.1/10). 'Mercury toxicity from fillings' is largely pseudoscience driving unnecessary chelation with real iatrogenic risk.
- Is DMSA / DMPS (heavy metal chelators) safe?
- DMSA / DMPS (heavy metal chelators) has a med-high risk profile in published human data. Legal status: Rx (DMSA — Succimer / Chemet); DMPS off-label / compounded. This is not medical advice — see the disclaimer.
- What is the typical dose for DMSA / DMPS (heavy metal chelators)?
- Protocols vary by agent and severity; medical supervision required
- How does DMSA / DMPS (heavy metal chelators) work?
- 2,3-dimercaptosuccinic acid (DMSA/Succimer — oral) and 2,3-dimercaptopropane-1-sulfonate (DMPS — IV/oral); thiol groups bind heavy metals (lead, mercury, arsenic) for renal excretion
This is an independent synthesis of published research by a non-clinician. Scores are opinions supported by citations, not prescriptions. See the full disclaimer and methodology for how this score was produced and what it does and doesn't mean.