Instruct: Classify the given review into positive or negative sentiment.
Query: ADVERSE REACTION

Here i sit with my 1 1/2 year old Japanese Chin 8 hours after Advantix application.When the time came for us to have quiet time, she came to my lap and i noticed she was shivering and staring into space. She is now hyper and will not rest, even though it is 3am.She continues to shiver and prance, holding her tail awkwardly. Another oddity is when i pet her she jerks her legs.There were no other variables to her day. i became concerned and searched if this med has reputation for causing adversities. YES! Please read about the effects beforehand and your will find other reports of reactions!!! POISON!!!Everyone needs to report their reactions to the FDA, Here is link[...]