Attached is the generic drug formulary.
I'll also share set of companies that offer a search engine capability (online) with generic drug database.
Most of these services also come as a phone app and are available free of cost to both doctors and patients to search for a generic drug.
It will be interesting to explore if we have to recreate the formulary on our own or license it from one of these (depends on the cost and if they have a api available for us to connect with them).
Cheers
Karthik