Drugs and Drug Classes Prohibited from Extra Label Drug Use
The FDA may prohibit the extra label use of approved animal or human drugs in animals if they determine that:
- An analytical method for residue detection needs to be established, however such method has not been established or cannot be established.
- The use of a drug or drug class in an extra label manner presents a risk to public health (i.e. the drug or drug class may be known to cause cancer, toxic reactions, or lead to antimicrobial resistance).
Drugs Not Allowed For Extra Label Use in Any Food-Producing Animal Species
Drugs with Restricted ELDU in Food-Producing Animal Species
Drugs with Restrictions for Grade "A" Dairy Operations
- Non-Medical Grade Dimethylsulfoxide (DMSO) - no use or on-site storage allowed
- Dipyrone - no use allowed
- Colloidal Silver - no use or storage allowed
- Systemically-Acting Drugs that are Topically Applied (including Fenthion, Famphur, and Xylene, Phosmet, Levamisole, and all avermectins) - use of, or storage with lactating cattle medications is a violation of Item 15r-Drug and Chemical Control