| Purpose | Patients | Evaluations | Perceived Effectiveness |
|---|---|---|---|
| Heart attack (myocardial infarction) | 256 | 16 | |
| Angina pectoris | 118 | 16 | |
| Angina pain | 93 | 21 | |
| Prinzmetal angina | 47 | 7 | |
| Esophageal spasms | 30 | 2 |
Common side effects
| Side effect | Patients | Percentage |
|---|---|---|
| Headaches | 24 | |
| Lightheadedness | 4 | |
| Low blood pressure | 3 | |
| Dizziness | 2 | |
| Headache on right side of head | 2 | |
| Burning sensation | 1 |
Side effect severity
| Severity | Evaluations | Percentage |
|---|---|---|
| Severe | 7 | |
| Moderate | 18 | |
| Mild | 19 | |
| None | 24 |