AniMed Vita-Calm Horse Supplement is an all-natural supplement made with a host of ingredients including l-tryptophan, thiamine, calcium, magnesium and live yeast cultures to help calm anxious, restless or high strung horses. This blend also includes Yea-Sacc 1026 micro-organisms to promote healthy digestion and gut stability. It comes with a convenient measuring scoop for easy feeding. Use daily as directed with feed for best results. 2lbs.