Hello, How is she acting right now? How long ago did you give her this medication? If any real concern call 911 now.
Please answer when able. Your daughter just got an adult dose of acetaminophen (tylenol), a cough suppressant (dextromathorphan - should not cause problems but may make her drowsy), and an adult dose of doxylamine, an antihistamine similar to benadryl, which will make her drowsy and give her a very dry mouth tomorrow morning. If she acts fine, you need to do no more than watch her. If she is vomiting, stumbling when walking, acting different in any way, the she must be seen in ER immediately.
Please have the ph number for poison control handy at all times on your fridge, phone, wherever.
PLEASE NEVER GIVE AN adult medication to a child without medical advice.
The adult dosage on the bottle is 30ml, and I gave her 10ml (had a dilusional moment of reason...), but is still bad thing, right?
Yes, still not my recommendation. We dose medications for infants and children based on their weight. In future, please call your daughter's pediatrician's on call physician for advice.