| Distinct count of drug name by current Chapter | ||||||||
| Current Chapter number | Chapter | Section | Paragraph | Sub paragraph | No change | No product match | No chemical match | Grand total |
| 1 | 4 | 109 | 1146 | 6 | 1265 | |||
| 2 | 5 | 3 | 4 | 19 | 2446 | 7 | 2484 | |
| 3 | 1 | 6 | 19 | 1132 | 10 | 1168 | ||
| 4 | 42 | 13 | 173 | 3831 | 9 | 4068 | ||
| 5 | 1 | 161 | 116 | 1241 | 2 | 1521 | ||
| 6 | 4 | 1 | 2 | 2 | 1521 | 10 | 1540 | |
| 7 | 5 | 12 | 528 | 28 | 573 | |||
| 8 | 1 | 4 | 579 | 6 | 1 | 591 | ||
| 9 | 1 | 7 | 6 | 54 | 4510 | 507 | 245 | 5330 |
| 10 | 27 | 1041 | 9 | 1077 | ||||
| 11 | 1 | 5 | 5 | 571 | 28 | 6 | 616 | |
| 12 | 420 | 44 | 11 | 475 | ||||
| 13 | 5 | 13 | 28 | 12 | 1847 | 95 | 30 | 2030 |
| 14 | 37 | 195 | 17 | 249 | ||||
| 15 | 1 | 254 | 37 | 292 | ||||
| Grand total | 94 | 52 | 560 | 203 | 21 262 | 815 | 293 | 23 279 |
BNF, British National Formulary.