| Not official USP-NF text | ||||
| BUTABARBITAL SODIUM TABLETS | ||||
| PF | LGS# | Brand | Type of Test | Additional Information |
| 9(4) | G10 | None Cited | Assay | 3%; see Barbiturate Assay  361 ; reprinted 16(2) |
| 9(4) | S1A | None Cited | Assay | 80--100 mesh; see Barbiturate Assay 361; reprinted 16(2) |