| Not official USP-NF text | ||||
| ORPHENADRINE CITRATE | ||||
| PF | LGS# | Brand | Type of Test | Additional Information |
| 29(1) | L1 | Luna C18 | Assay and Related Compounds | 4.6 mm x 15 cm, 5 µm, manufacturer Phenomenex. |
| 16(4) | G27 | None Cited | Organic volat. impurities | See Method I  467 |