Instruct: Classify a review as either positive or negative.
Query: Doubtful of its effectiveness.

My dog is a rescue dog, and came to our family with massive anxiety. We attempted to go the organic route with this product and others, but ended up getting a prescription from his vet to aid his terrible anxiety. After over a year on the meds, his anxiety has subsided some. I never once saw his axiety lessen while using this product. Wouldn't recommend wasting the money!