Earlier this week, Moody's revised its bearish outlook for Big Pharma, upgrading the industry's status to "stable." For some time now, the major overhang has been the patent cliff, but Moody's appears to have recognized that this is less of a threat than previously thought -- hence the overall outlook increase from negative to neutral.

Of course, a variety of different outlooks exist across companies, with Merck (NYSE:MRK)

What's Fool.com analyst Brenton Flynn's takeaway here? In the following video, he notes that while the sector's looking OK overall, investors would definitely be wise to look at individual companies closely before making a pick in this space. Click play to watch and learn more.

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