| RxList - The Internet Drug Index for prescription drug information, interactions, and side effects | 14 |
| Medications and prescription drug information for consumers and medical health professionals. Online database of the most popular drugs and their side effects, interactions, and use. | 25 |
| Drugs | 11 |
| website | 10 |
| Rx | 7 |
| List | 7 |
| Vitamins | 5 |
| Drug | 5 |
| Health | 5 |
| research | 28 |
| clinical | 28 |
| health | 19 |
| information | 19 |
| label | 17 |
| site | 16 |
| ads | 12 |
| interests | 12 |
| funding | 11 |
| object | 11 |
| list | 10 |
| personalised | 10 |
| resources | 9 |
| news | 8 |
| medical | 8 |