| Purpose | Patients | Evaluations | Perceived Effectiveness |
|---|---|---|---|
| Cough | 38 | 22 | |
| Chronic cough | 22 | 9 | |
| Asthma | 10 | 5 | |
| Persistent cough | 5 | 2 | |
| Productive cough | 4 | 0 |
Common side effects
| Side effect | Patients | Percentage |
|---|---|---|
| Constipation | 1 | |
| Dizziness | 1 | |
| Drowsiness | 1 | |
| Lightheadedness | 1 | |
| Sleepiness | 1 |
Side effect severity
| Severity | Evaluations | Percentage |
|---|---|---|
| Severe | 0 | |
| Moderate | 3 | |
| Mild | 4 | |
| None | 24 |