Biotech MannKind (Nasdaq: MNKD) is one of the health care sector's top performers, approaching a double in 2014 and has notched two year gains over 250%. But what is next for investors in the industry darling?

After FDA approval for its flagship inhaled insulin product Afrezza, it appears the bulls have completely vanquished the MannKind bears -- or are the bears merely licking their substantial wounds, waiting to make another swipe at shares? Because while it may seem like smooth sailing for the biotech now that it has a unique product and an effective monopoly in a huge indication, there is one key question remaining: how will it sell?

In this episode of Where the Money Is, health care analysts David Williamson and Michael Douglass  discuss what MannKind investors should expect next, the kind of patients MannKind should target, and which big pharma makes the most sense as a partner or potential acquirer. Watch and find out.