Purpose 505(b) (2) application is one of the advantageous ways of regulatory submission. This submission approach can lead to fast-track approval for wide-ranging products, exclusively for those that exemplify a limited change from formerly approved drug. Safety and efficacy evidence in terms of non-clinical and clinical portion of the Reference Listed Drug (RLD), are trusted upon. Additionally, supplementary data essentially required to establish comparability with the RLD, are presented in the dossier. Methods This retrospective analysis is to understand the FDA's expectations and avoid errors in terms of data support approval for a new product submitted under the 505 (b) (2) route. The current script is an analysis on how to architect 505(b) (2) regulatory strategy by developing a different set of documents/information. Results The ultimate goal of this review is to allow drug developers to easily navigate through various 505 (b) (2) submissions and defense strategies for registration processes available to the new drug manufacturers and to understand an effective, safer filing route by facilitating early market launch with a prospect of lower cost. Conclusion Before considering option 505 (b) (2), general companies should have a good understanding of product’s potential productivity, scalability, patent infringement, expensive clinical studies and/or non-clinical studies to appropriately strategize scientific and commercial opportunities. This leverage will potentially quicken the development program and will definitely lower the clinical and regulatory risk of new product entrants.