Drug use in veterinary practice may include therapeutic and non-therapeutic utilization. Therapeutic use includes; antimicrobials, ecto and endo parasiticides, endectocides, and the drugs acting on various systems. The non-therapeutic application includes the drugs used to increase feed conversion efficiency that entails antimicrobial growth promoters, anabolic steroids, and hormones like oxytocin, growth hormone, etc. Animal products, in addition to naturally occurring toxicants, can also contain residues from agricultural pesticides used within or around the vicinity of animal farms and environmental contaminants present in animal feed, water, or ambient air. The levels of drugs used in veterinary medicine are a public health concern when such animals or their products are used for human consumption.

Antimicrobial exercise in food animals also involves therapeutic use to treat clinical disease and prophylactic use to prevent and control common disease events. While these drugs are used to prevent and treat illness in farmed animals, they’re also used in low doses to make animals grow more quickly and to compensate for unhygienic conditions. When approved veterinary drugs are administered according to their label directions, the prevalence of violative drug residues in animal products should be less than 1%. Residue violation rates greater than 1% indicate drug use in a manner inconsisten