2024 21 CFR 520.2218 – Sulfamerazine, sulfamethazine, and sulfaquinoxaline powder

2023 21 CFR 520.2218 – Sulfamerazine, sulfamethazine, and sulfaquinoxaline powder

2022 21 CFR 520.2218 – Sulfamerazine, sulfamethazine, and sulfaquinoxaline powder

2021 21 CFR 520.2218 – Sulfamerazine, sulfamethazine, and sulfaquinoxaline powder

2020 21 CFR 520.2218 – Sulfamerazine, sulfamethazine, and sulfaquinoxaline powder

2019 21 CFR 520.2218 – Sulfamerazine, sulfamethazine, and sulfaquinoxaline powder

2016 21 CFR 520.2218 – Sulfamerazine, sulfamethazine, and sulfaquinoxaline powder

2015 21 CFR 520.2218 – Sulfamerazine, sulfamethazine, and sulfaquinoxaline powder

2014 21 CFR 520.2218 – Sulfamerazine, sulfamethazine, and sulfaquinoxaline powder

2010 21 CFR 520.2218 – Sulfamerazine, sulfamethazine, and sulfaquinoxaline powder