Combinations of drugs are used for treatment. Drugs approved for one animal species are used in another. The animal is critically ill causing normal drug clearance time to increase. The large number and variety of drugs mandate maintenance and use of good records, in addition to better management and identification of treated animals. Many of these must be used in an extra-label manner as FDA approval of the drug does not allow other usage.
Types Following is a summary of the general drug types used in food animal production.
Agricultural chemicals and insect preventatives in animal environment. The extensive list above points out the absolute necessity of professional veterinary service, proper labeling, and record keeping for all agricultural products that may be used in farm management. All of these reasons are important, but of even greater significance is the production of safe food animal products the consumer can trust and buy with total confidence. Kenneth R. Bolen, Director of Cooperative Extension, University of Nebraska, Institute of Agriculture and Natural Resources.