Not official USP-NF text
DROSPIRENONE
PF LGS# Brand Type of Test Additional Information
36(6) L1 YMC-Pack Pro C18 Assay 4.6 mm x 25 cm, 3 µm.
31(3) L1 Spherisorb ODS2 Assay and Chromatographic purity 4.6 mm x 25 cm, 5 µm.
36(2) L1 YMC-Pack Pro C18 Organic Impurities 4.6 mm x 25 cm, 3 µm. Alternative solumn: YMC Pack ODS AQ, same dimensions.