Dossier
Christy Leppanen
Coverage of Christy Leppanen in the Nexus archive.
- FDA authorized Zyn nicotine pouches without knowing what they were made of, says former agency scientist
The FDA authorized Zyn nicotine pouches after a four-year review despite a former agency scientist's concerns about incomplete understanding of the product. An FDA toxicologist conducted informal kitchen tests and questioned the agency's approval, citing conflicting information about whether the pouches melt in the mouth.