Target animal safety studies require systemic testing for new products or new chemical entities and additional animal species. They are not required for drugs administered locally, such as otic , ophthalmic, intramammary and and intra-articular preparations. This does not apply to generalized dermal or topical drugs that may act systemically. The market formulation of a drug must be administration, gavage, intravenous, multiple sites or incremental doses may be used. A vehicle control group must be included in the experimental design.