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Drug Development Executive
Drug Development Executive
Mercury in vaccines: You be the judge.
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Mercury in vaccines: You be the judge.

PS: Have you heard of any heavy metal being declared as safe for humans?

Eswar Krishnan, MD's avatar
Eswar Krishnan, MD
Jun 25, 2025
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Drug Development Executive
Drug Development Executive
Mercury in vaccines: You be the judge.
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Here are the facts:

The concern stems from mercury, a known neurotoxin. Thiomersal, used in some vaccines as a preservative, contains ethylmercury. This is a critical distinction from methylmercury. Methylmercury is the form found in contaminated fish and is known to cause severe neurological damage.

PK- Toxikinetics is the main reason why mercury in vacc…

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