Natural Standard provides a critical and transparent review of the evidence regarding herbs and supplements. Drake has had access to this database and its wealth of evaluative information on integrative treatments for human health for some time; however, Natural Standard recently added information on such treatments for pets and animals, too! To access, follow the link below, and click on "Databases" in the menu bar, and choose "Animal Health" at the bottom of the pull-down list. Info is browsable by both treatment and condition, and the entire database is searchable.
If you're a Drake student, faculty, or staff, check out Natural Standard!