In the following video, Motley Fool health care bureau chief Brenton Flynn discusses an upcoming FDA decision on this Sunday, Feb. 10, on whether to approve Celgene's (NASDAQ:CELG) drug pomalidomide, which is used in the treatment of blood cancer multiple myeloma. While there is little doubt that the drug will be approved, Brenton highlights the bigger question at stake here: Considering the competition in this space -- including one of Celgene's own drugs, which may cannibalize sales -- just how big will this drug become?

Brenton Flynn has no position in any stocks mentioned. The Motley Fool recommends Johnson & Johnson. The Motley Fool owns shares of Johnson & Johnson. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.