White Tablet ## This pill could be natafort. A prescription prenatal vitamin. Natafort is a white film coated oblong tablet labeled B357. Could you be wrong about the L? I've scoured all my resources(which are significant) and cant find a match for L357 anywhere. In my opinion there is no pill marked that way ## The pills marked with an L followed by an additional set of numbers are over the counter items. So, no, they are not usually in our prescription databases. I have check quite a few resources as well and cannot find a listing for this. This company makes many different OTC items that are sold in a lot of stores as their generics or store brands. Does anyone else know what this is??