| Agent Name | Agent Number | CAS Number | Last Updated | |
|---|---|---|---|---|
| HAMAMELIS VIRGINIANA | 2279 | 68916-39-2 | 11/20/2025 | Summary |
| HAND, FOOT, AND MOUTH DISEASE | 4558 | NONE | 11/04/2025 | Summary |
| HANSEN DISEASE | 4888 | NONE | 01/21/2026 | Summary |
| HANSEPRAN | 3166 | 2030-63-9 | 10/23/2025 | Summary |
| HARES EAR ROOT | 4078 | NONE | 11/29/2025 | Summary |
| HARMAN | 2709 | 486-84-0 | 02/14/2026 | Summary |
| HARMONYL | 2385 | 131-01-1 | 10/16/2025 | Summary |
| HARNAL D | 4191 | 106133-20-4 | 05/08/2026 | Summary |
| HARVONI | 4592 | NONE | 11/15/2025 | Summary |
| HARVONI | 4881 | NONE | 12/14/2025 | Summary |
| HARZOL | 3540 | 5779-62-4 | 04/08/2026 | Summary |
| HASHISH | 1124 | NONE | 08/27/2025 | Summary |
| HAUSMANNITE | 2984 | 1317-35-7 | 03/26/2026 | Summary |
| HAVA-SPAN | 3071 | 57-68-1 | 11/26/2025 | Summary |
| HAVRIX | 3916 | NONE | 03/16/2026 | Summary |