PLATEAU VITA-CALM CRUMBLET 10LB, supplement for use in hyper, nervous or stressed horses. Can be used prior to events which may cause nervousness or excitement. Contains guaranteed levels of thiamine (4,000 mg/lb), calcium (160 mg/lb) and magnesium (20 mg/lb). Highly palatable and easy to feed. Dosage per 1,000 lbs body wt: 2 oz daily; Prior to event - 2-4 oz. 10 lbs = 80 day supply. Not for sale in NM