An analysis of overall traffic to Web sites devoted to prescription medications revealed the conditions with high levels of visitation. Depression was the top-ranked therapeutic area with 2.9 million unique visitors. Bipolar disorder and insomnia ranked second and third with 1.8 million and 1.7 million unique visitors, respectively.
| Top medical treatments researched on the Web | ||
| Audience, 000 | Q3 2005 | Q3 2006 |
| Depression | 2,950 | 2,893 |
| Bipolar | 1,364 | 1,782 |
| Insomnia | 1,414 | 1,745 |
| Cholesterol | 1,825 | 1,718 |
| Acid Reflux/GERD | 2,493 | 1,402 |
| Contraception | 702 | 1,390 |
| ADHD | 900 | 1,367 |
| Hypertension | 646 | 1,079 |
| Breast Cancer | 523 | 881 |
| Allergies | 1,155 | 738 |
| Migraine | 563 | 723 |
| Diabetes | 838 | 684 |
| Asthma | 828 | 616 |
| Source: comScore | ||