FR-21 Veterinary Bolus Feed Supplement of Chelated Trace Minerals - Vitamins And Herbs is a veterinary medicine that is used in the treatment of many diseases in animals. We have used analytical methods to formulate the supplement. It is prepared using pure and efficacious raw ingredients. It has got the perfect balance of essential minerals and vitamins, which are vital for healthy body functioning. The feed supplement is specially formulated for dairy cattle. It can be purchased from us at a cost-effective price.