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TEE Ratings

(Therapeutic Equivalence Ratings)

"A" CODES

Drug products the FDA considers therapeutically equivalent to other pharmaceutically equivalent products. These codes are published in FDA's Orange Book:

AA Products in conventional dosage forms not presenting bioequivalence problems
AB Products meeting necessary bioequivalence requirements
AB1 Products meeting necessary bioequivalence requirements, assigned when more than one reference listed drug of the same strength has been designated under the same heading
AB2 Products meeting necessary bioequivalence requirements, assigned when more than one reference listed drug of the same strength has been designated under the same heading
AB3 Products meeting necessary bioequivalence requirements, assigned when more than one reference listed drug of the same strength has been designated under the same heading
AN Solutions and powders for aerosolization
AO Injectable oil solutions
AP Injectable aqueous solutions and, in certain instances, intravenous non-aqueous solutions
AT Topical products


OTHER CODES

The following codes are applied to specific products where appropriate:

n/a (1) No rating
n/a (2) Therapeutic equivalent, manufactured and distributed under originator's NDA
n/a (3) Same therapeutic effect as the reference listed drug
n/a (4) New Drug Application (NDA); no rating