CommonWealth REIT's shares fell Tuesday after the real estate investment trust completed a stock offering, despite the objections of two major shareholders.

Drugmaker Pfizer Inc. says a new patent on one of its top drugs, anti-inflammatory painkiller Celebrex, extends its U.S. patent protection by 18 months, potentially bringing the company a few billion dollars in additional revenue.

Americas Health Insurance Plans touted a poll Monday that finds nearly all seniors are satisfied with their Medicare Advantage coverage.

Despite six decades of free medical care and widespread health campaigns, Britons are among the unhealthiest people in Western Europe, a new study says.