Hello from JustAnswer.
There are many possible symptoms that can occur from taking such a high dose of aripiprazole. The most common symptoms are excessive sedation, upset stomach with nausea and vomiting, and tremor. It also can cause aggression, abnormal heart rhythms, dizziness, or lightheadedness. It would be less common, but possible, for a dose of this level to cause the serious signs of overdose, such as seizures, unconsciousness, or coma. Even without these serious signs of overdose, though, any drug that causes excessive sedation can potentially be life threatening if the sedation occurs at an inopportune time, such as while driving.
If you have accidentally taken such a dose of aripiprazole, it would be recommended that you be seen by your doctor.
If I can provide any additional information or other assistance, please let me know.
Or, if you are having any current symptoms, you can let me know.