Table 2. Veterans Health Administration Pharmacy Users Prescribed Level A Drugs.
| Drug | Drug Class | No. (%) (N = 7 769 359) | |
|---|---|---|---|
| All Drug Recipients | New Drug Recipients | ||
| ≥1 Level A drug | Any | 4 259 153 (54.8) | 2 943 872 (37.9) |
| Simvastatin | Statin | 1 925 052 (24.8) | 533 928 (6.9) |
| Tramadol | Opioid | 1 308 595 (16.8) | 923 671 (11.9) |
| Ondansetron | Oncology | 702 244 (9.0) | 604 226 (7.8) |
| Codeine | Opioid | 680 527 (8.8) | 528 159 (6.8) |
| Citalopram | Antidepressant | 569 668 (7.3) | 266 952 (3.4) |
| Clopidogrel | Antiplatelet | 560 001 (7.2) | 338 295 (4.4) |
| Allopurinol | Gout | 408 862 (5.3) | 215 055 (2.8) |
| Warfarin | Anticoagulant | 385 821 (5.0) | 205 177 (2.6) |
| Amitriptyline | Antidepressant | 257 092 (3.3) | 174 693 (2.2) |
| Paroxetine | Antidepressant | 214 166 (2.8) | 138 183 (1.8) |
| Fluorouracil | Oncology | 192 482 (2.5) | 160 356 (2.1) |
| Escitalopram | Antidepressant | 176 907 (2.3) | 170 690 (2.2) |
| Nortriptyline | Antidepressant | 123 001 (1.6) | 88 551 (1.1) |
| Carbamazepine | Anticonvulsant | 58 304 (0.8) | 32 868 (0.4) |
| Phenytoin | Anticonvulsant | 43 348 (0.6) | 15 556 (0.2) |
| Tacrolimus | Immunosuppressant | 39 168 (0.5) | 26 487 (0.3) |
| Ribavirin | Antiviral | 35 744 (0.5) | 31 606 (0.4) |
| Oxcarbazepine | Anticonvulsant | 18 763 (0.2) | 15 213 (0.2) |
| Azathioprine | Immunosuppressant | 15 769 (0.2) | 9283 (0.1) |
| Capecitabine | Oncology | 11 994 (0.2) | 9677 (0.1) |
| Peginterferon alfa-2a | Antiviral | 10 348 (0.1) | 6437 (0.08) |
| Abacavir | Antiviral | 9716 (0.1) | 6263 (0.08) |
| Atazanavir | Antiviral | 6495 (0.08) | 1709 (0.02) |
| Voriconazole | Antifungal | 4603 (0.06) | 3785 (0.05) |
| Tamoxifen | Oncology | 4374 (0.06) | 3159 (0.04) |
| Fluvoxamine | Antidepressant | 3842 (0.05) | 2460 (0.03) |
| Mercaptopurine | Immunosuppressant | 3566 (0.05) | 1996 (0.03) |
| Rasburicase | Oncology | 1637 (0.02) | 1444 (0.02) |
| Peginterferon alfa-2b | Antiviral | NRa | NRa |
| Irinotecan | Oncology | NRa | NRa |
| Thioguanine | Immunosuppressant | NRa | NRa |
Abbreviation: NR, not reported.
a
Number less than 1000.