Chelation (EDTA Chelation): intravenous heavy-metal removal under medical supervision
EDTA is given intravenously with vitamins and minerals to bind heavy metals and remove them through the kidneys. Kidney function is tested beforehand in every case, each session takes about 2 hours, and the doctor explains the scientific evidence and limitations before you decide.
What chelation is
Chelation comes from the Greek word for a crab's claw, describing how one molecule grips a metal like a pincer. EDTA (ethylenediaminetetraacetic acid) is a chelating agent that medicine has used for decades to treat lead poisoning and certain other heavy-metal toxicities. Given intravenously, EDTA binds lead, cadmium and other metals in the bloodstream, which are then excreted in the urine. Our clinic uses a protocol that infuses EDTA slowly together with vitamins and minerals, to replace the essential minerals that may be removed at the same time. Every session is performed by a nurse under a doctor's supervision.
Who the doctor may consider for chelation
High heavy-metal levels on testing
Blood or urine results show lead, cadmium, arsenic or mercury above the threshold, with related symptoms
Occupational heavy-metal exposure
Battery, paint, welding or electronics work, or living in an area with contaminated water and soil
Ongoing dietary risk
Regular consumption over many years of large ocean fish, or herbal or traditional remedies of unknown origin
Preventive care after consulting the doctor
When the doctor has assessed that the expected benefit is reasonable against the risk, and you understand the limitations of the evidence
EDTA has clear evidence for treating lead poisoning, but the evidence for cardiovascular and brain benefits is limited. A large study (TACT) found benefit only in certain groups, such as diabetic patients with a previous heart attack, and the follow-up study (TACT2) did not confirm that result. Chelation is therefore not a treatment for heart disease, Alzheimer's or cancer. The doctor explains the scientific data and limitations before you decide, and does not advise stopping any medication prescribed by your regular doctor
How it works
Who should not have it, or needs special consultation
- Chronic kidney disease, or an eGFR below the threshold the doctor sets
- Pregnancy or breastfeeding
- Severe liver disease, uncontrolled heart failure or arrhythmia
- Active tuberculosis, or low blood calcium
- Taking blood thinners, diuretics or other medication affecting electrolytes; tell the doctor so the plan can be adjusted
- Anyone expecting chelation to treat heart or brain disease in place of standard treatment
What to expect over time
Related services
Prices
| Chelation, 1 session Doctor's assessment, EDTA with vitamins and minerals, about 2 hours, with a face mask while you wait | From 6,000 THB |
| Course of 5 sessions Once a week, including kidney and electrolyte tests during the course | From 24,000 THB |
| Pre-treatment tests Kidney function, electrolytes, calcium and heavy-metal levels as the doctor orders | [ ] |
Frequently Asked Questions
Does chelation really clean out the blood vessels?
The evidence is not clear enough to say so. A large study found benefit only in certain groups, and the follow-up study did not confirm it. The doctor explains both sides of the evidence, and chelation is not a replacement for standard treatment of vascular disease.
How many sessions, and how far apart?
Mostly once a week for 5–10 sessions, depending on heavy-metal levels and response. Kidney values and electrolytes are checked at intervals during the course.
What are the side effects?
Possible effects include tiredness, headache, pain at the needle site, more frequent urination, or temporarily low blood calcium if infused too quickly, which we prevent by infusing slowly and replacing minerals. Possible effects on the kidneys are the reason kidney function is tested before and during the course.
How should I prepare?
Eat normally before coming, drink enough water, bring a list of your medication and supplements for the doctor, and have the pre-treatment blood tests the doctor orders.
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