| Not official USP-NF text | ||||
| LEVOTHYROXINE SODIUM | ||||
| PF | LGS# | Brand | Type of Test | Additional Information |
| 8(5) | L10 | MicroBondapak CN | Assay and Limit of . . . . | Limit of liothyronine sodium. Alternative column: Zorbax CN, 4.6 mm x 25 cm, 5 µm, manufacturer Agilent. |
| 33(3) | L7 | ZORBAX C8 | Related compounds | 4.6 mm x 15 cm, 5 µm. |
| 35(1) | L1 | YMC-Pack Pro C18 | Related compounds | 4.0 mm x 15 cm, 3 µm. |