Not official USP-NF text
TADALAFIL
PF LGS# Brand Type of Test Additional Information
38(1) L7 ZORBAX SB C8 Assay and Organic Impurities 4.6 mm x 25 cm, 5 µm.
38(1) L51 Chiralpak AD Enantiomeric purity and Diastereomeric purity. 4.6 mm x 25 cm, 10 µm.