Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This products mostly works

Now , I always have Fast Balance around for my older dog who often has nausea as a symptom. Though she does not want to volunteer eating this product and sometimes it takes some cajoling, once given the suggested amount her gurgling gastro track seems to calm done within 15 minutes. It is not always effective with more serious concerns , but it is a great first line of defense before taking prescription meds.