Nystatin Oral Suspension, USP 500,000 units/5mL Cup, Delivers 5 mL, Rx Only, Manufactured by: VistaPharm, Largo, FL 33771, a) NDC 66689-037-50 (individual cup NDC: 66689-037-01); b) 66689-037-99.
Failed impurities/degradation products; Presence of an impurity peak that exceeds the approved specification.
United States including Puerto Rico
https://www.accessdata.fda.gov/scripts/ires/index.cfm?Product=D-1377-2020