Poison Control Centers Warn About Toxic Chemical in At-Home COVID-19 Test Kits

Some at-home rapid COVID-19 tests contain a toxic chemical that may be harmful to both children and adults, according to health officials.

The Cincinnati Drug and Poison Information Center reported an uptick in accidental exposures to a possibly toxic substance, sodium azide, in at-home COVID-19 test kits, according to a blog post. Meanwhile, the National Poison Control Center issued a warning about the chemical.

“It is important to know that the extraction vial in many rapid antigen kits includes the chemical sodium azide as a preservative agent,” the center said. “The BinaxNow, BD Veritor, Flowflex, and Celltrion DiaTrust COVID-19 rapid antigen kits all contain this chemical.”