Table 3.
Most-reviewed medications in WebMD and most frequently named diseases in the reviews after removing known indications and adverse drug events.
| Drug name | Disease names, n | Most frequent disease names | ||
| Dictionary-based | MetaMap | Dictionary-based | MetaMap | |
| Lisinopril | 280 | 1124 | Itch | Blood pressure |
| High blood pressure | Cough | |||
| Rash | Dry cough | |||
| Hydrocodone-acetaminophen | 320 | 987 | Arthritis | Pain |
| Itch | Back pain | |||
| Chronic pain | Arthritis | |||
| Phentermine | 195 | 834 | Depression | Weight loss |
| Obese | Blood pressure | |||
| High blood pressure | Sleeping | |||
| Cymbalta | 320 | 1063 | Depression | Depression |
| Itch | Anxiety | |||
| Fibromyalgia | Weight gain | |||
| Lexapro | 269 | 864 | Depression | Depression |
| Itch | Weight gain | |||
| Panic attack | Anxiety | |||
| Effexor | 290 | 943 | Depression | Depression |
| Itch | Dizziness | |||
| Panic attack | Anxiety | |||
| Tramadol | 200 | 670 | Fibromyalgia | Pain |
| Chronic pain | Back pain | |||
| Migraine | Headache | |||
| Trazodone | 196 | 609 | Chronic insomnia | Depression |
| Migraine | Anxiety | |||
| Fibromyalgia | Headache | |||
| Topamax | 271 | 840 | Migraine | Migraine |
| Gist | Headaches | |||
| Memory loss | Tingling | |||
| Percocet | 245 | 713 | Itch | Pain |
| Chronic pain | Abuse | |||
| Arthritis | Back pain | |||