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| Reason | # Patients | Percentage of patients | |
|---|---|---|---|
| Ginkgo Biloba Extract | 4 | 2% | |
| Vitamin E | 3 | 1% | |
| Dextroamphetamine | 2 | 1% | |
| Dexedrine | 1 | 0% | |
| Grape Seed Extract | 1 | 0% | |
| Pycnogenol | 1 | 0% | |
| Vitamin C with Rose Hips | 1 | 0% |