| Purpose | Patients | Evaluations | Perceived Effectiveness |
|---|---|---|---|
| Pain | 30 | 12 | |
| Fibromyalgia | 15 | 5 | |
| Breakthrough pain | 5 | 2 | |
| Abdominal pain | 1 | 0 | |
| Arthritis pain | 1 | 3 |
Common side effects
| Side effect | Patients | Percentage |
|---|---|---|
| Constipation | 4 | |
| Drowsiness | 2 | |
| Brain fog | 1 | |
| Dry mouth | 1 | |
| Elevated liver enzymes | 1 | |
| Headaches | 1 |
Side effect severity
| Severity | Evaluations | Percentage |
|---|---|---|
| Severe | 2 | |
| Moderate | 5 | |
| Mild | 3 | |
| None | 7 |