Leckie Pharma UK follows the Hatch-Waxman by which we apply the abbreviated new drug applications (ANDAs), which permits generic pharmaceutical manufacturers to build on FDA’s prior approval of the brand drug with the same ingredients to establish the safety and efficacy of their generics. a bioequivalent study between the generic and the brand originator product demonstrating that both drugs have the same pharmacokinetic (absorption, distribution, metabolism, and excretion) properties inside the human body. In addition, ANDA requires generic proposed labeling to be identical to the originator labeling except for manufacturing information or other changes that have been approved and added.