The agency is committed to ensuring that any violations and safety issues presented by these products are addressed by their manufacturers. The agency issued a warning letter to Abbott Laboratories on Oct. 24, 2023, for its product, Similac Probiotic Tri-Blend, which contains B. infantis (Bb-02), S. thermophilus (TH-4) and B. lactis (BB-12). Of note, this product is not an infant formula and is not related to the previous issues the agency has noted with powdered infant formula manufactured by Abbott Nutrition. Abbott has agreed to discontinue sales of its Similac Probiotic Tri-Blend product and is working with the FDA to take additional corrective actions.