| Rank | Brand | 1998 DTC $ | % Change from '97 |
| 1 | Claritin | $185.1 | 171% |
| 2 | Propecia | 92.0 | n/a |
| 3 | Zyrtec | 75.6 | 39 |
| 4 | Zyban | 64.4 | 69 |
| 5 | Pravachol | 59.7 | - 23 |
| 6 | Allegra | 52.5 | - 18 |
| 7 | Prilosec | 49.7 | 19 |
| 8 | Zocor | 44.5 | - 3 |
| 9 | Evista | 42.3 | n/a |
| 10 | Prozac | 41.1 | 82 |
| Source: IMS Health | |||
Top-Ten Pharmaceutical Spenders
