Suggest Medication For Nausea And Vomiting After Quetiapine Withdrawal

Hi I have a 15year old daughter who is withdrawing from quertapine which she is very positive about doing. She was prescribed it for anxiety and sleep issues. She has taken 100 each night for about a year. She went down to 75 in late December, 50 in late January and 25 in late February. The major side effect has been nausea and vomiting. Can you recommend anything that might help settle her stomach.