The original recall covered 4-ounce and 1-pint, 16-ounce bottles, NDC Nos. 052376-021-04 and 052376-021-02, respectively, of the prescription oral rinse with expiration dates from 6/30/22 to 9/30/22.

The team repeated the cycle a total of 28 times in order to simulate using chlorhexidine over a 14-day period—the typical ...