Roerig

Roerig is a historical and still-referenced Pfizer pharmaceutical business unit originating from J.B. Roerig and Company, which specialized in nutritional supplements before being acquired by Pfizer. Within Pfizer, Roerig has functioned as a commercial pharmaceutical division associated with the marketing, distribution, and regulatory holding of approved drug products rather than as a standalone R&D biotech company. Public records and FDA notices continue to reference "Roerig Division of Pfizer Inc." as an applicant or sponsor name for marketed products. As a result, Roerig is best understood as an acquired legacy Pfizer division tied to commercialized healthcare products, not an independent modern pipeline-stage biotech enterprise.