| ARCHITECT Phenobarbital | 00884883008106 | Microgenics Corporation | Unknown class | |
| Atellica CH Gentamicin (Gent) | 00630414595979 | Siemens Healthcare Diagnostics Inc. | Class C | |
| Atellica CH Phenobarbital (Phnb) | 00630414595993 | Siemens Healthcare Diagnostics Inc. | Class C | |
| CEDIA Phenobarbital II Assay | 00884883001237 | Microgenics Corporation | Unknown class | |
| Dimension Phenobarbital Flex reagent cartridge | 00842768005596 | Siemens Healthcare Diagnostics Inc. | Class C | |
| Dimension Vista Phenobarbital Flex reagent cartridge | 00842768015397 | Siemens Healthcare Diagnostics Inc. | Unknown class | |
| Emit 2000 Phenobarbital Assay | 00842768017407 | Siemens Healthcare Diagnostics Inc. | Class C | |
| Emit® 2000 Phenobarbital Assay | 00842768023224 | Siemens Healthcare Diagnostics Inc. | Class C | |
| IMMULITE 2000 Phenobarbital | 00630414961828 | Siemens Healthcare Diagnostics Products Ltd. | Class C | |
| Phenobarbital | 00380740102692 | Microgenics Corporation | Unknown class | |