CVS Health (NYSE: CVS) is a busy company. It runs the nation's largest drugstore chain with nearly 10,000 locations; it also manages prescription drug plans for employers and insurers; and, through its Aetna division, it provides health coverage for more than 25 million people.

But the company has been facing some challenges. The shares are down 27% so far this year amid falling earnings per share (EPS) and lowered guidance in its first-quarter report. In fact, the healthcare stock just hit its 52-week low on Tuesday before bouncing back a little later in the day.

Is this dip a buying opportunity, or is there more pain ahead for CVS investors? Here are two reasons not to buy the stock and two why you should.

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Source Fool.com