| Not official USP-NF text | ||||
| TOLBUTAMIDE | ||||
| PF | LGS# | Brand | Type of Test | Additional Information |
| 6(5) | L3 | None Cited | Assay | NULL |
| 7(1) | L3 | MicroPorasil | Assay | Reprinted 7(3), 13(4) |
| 17(3) | G43 | None Cited | Organic volat. impurities | See Method V  467 |
| 19(4) | G43 | None Cited | Organic volat. impurities | See Method IV 467 |