The FDA Approved Animal Drug Products (aka Green Book), is updated monthly by FDA's Center for Veterinary Medicine. The Generic Animal Drug and Patent Restoration act requires that each sponsor of an approved animal drug must submit to the FDA certain information regarding patents held for the animal drug or its method of use. The Act requires that this information, as well as a list of all animal drug products approved for safety and effectiveness, be made available to the public. This list must be updated monthly under the provisions of the Act.
Animal drugs at FDA
FDA approved animal drug products
Green book online