Vaccine Safety

Newly-Formulated DTaP Vaccine Approved With Only Trace Amounts Of Thimerosal

Published in Medical Letter on the CDC and FDA, April 1st, 2001

On March 7, 2001, the U.S. Food and Drug Administration approved a newly formulated version of Tripedia, a diphtheria and tetanus toxoids and acellular pertussis (DTaP) vaccine without preservatives and with only a trace amount of thimerosal.

"This approval is significant because now all routinely recommended pediatric vaccines will be available as either completely thimerosal-free or without any significant amounts of thimerosal, a preservative that contains mercury," said Dr. Bernard Schwetz, acting principal deputy commissioner at the FDA. "Although thimerosal is a very effective preservative, the Public Health Service recommended that thimerosal should be reduced...

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Source: Medical Letter on the CDC and FDA (2001-04-01)

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