A daily dose of this all natural food supplement helps to diminish yellow lawn spots. For best results, offer the recommended dosage twice daily for the first two weeks, then once daily thereafter. Dosage as follows: for dogs up to 19 lbs, 2 tablets; for dogs 20-49 lbs, 3 tablets; for dogs 50-79 lbs, 4 tablets; for dogs 80 lbs and over, 5 tablets. Offer with food. Main ingredients are : Montmorillinite, dl-Methionine, thiamine mononitrite, & pyridoxine HCL. For use with dogs only do not give to cats or other animals. Please read and follow label directions.