Walgreen Co.'s fiscal fourth quarter net income tumbled 55 percent compared to a year ago when the drugstore operator recorded a big business sale gain.

A possible Alzheimer's disease treatment from drugmaker Eli Lilly showed some promise in late-stage research, even though the drug failed to slow a form of mental decline in two separate studies of patients with the mind-robbing condition.

CVS Caremark Corp.'s second-quarter net income jumped 18.4 percent, as its drugstores took business from rival Walgreen and an expansion of its pharmacy benefits management segment pushed revenue higher.

Health Net Inc. shares plunged Friday after the health insurer slashed its 2012 earnings forecast again and reported second-quarter results that fell far below analyst expectations.

WellPoint Inc., the nation's second-largest health insurer, surprised Wall Street on Wednesday by cutting its 2012 forecast and reporting second-quarter earnings that both fell and missed expectations.

Pharmacy operator Walgreen Co. said Thursday that a key revenue metric fell 10 percent in June, as it took another step to battle a sales slump by acquiring a regional drugstore chain.

One of the biggest misconceptions about President Obama's health care overhaul isn't who the law will cover, but rather who it won't.

Some of the nation's biggest health insurers will keep some popular parts of President Barack Obama's health care overhaul even if the law fails to survive Supreme Court scrutiny later this month.