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Adverse events occurred in three treatment group
| Tianzhi (n = 232) | Donepezil (n = 233) | Placebo (n = 55) | |
|---|---|---|---|
| n (%) | n (%) | n (%) | |
| Total | 4 (1.72) | 3 (1.29) | 1 (1.82) |
| Diarrhea | 0 | 1 | 0 |
| Urinary tract Infection | 2 | 0 | 0 |
| Insomnia | 0 | 0 | 1 |
| Abnormal renal function | 1 | 0 | 0 |
| Arrhythmia | 0 | 1 | 0 |
| Loss of appetite | 0 | 1 | 0 |
| Bloating | 1 | 0 | 0 |
