Dr. Sidney Wolfe in Washington in 2005. He waged relentless campaigns on behalf of health care users for over four decades. Jamie Rose for The New York Times ...

A doctor turned consumer activist, Sidney Wolfe battled drug companies, lobbyists, and regulators during a nearly five-decade crusade against ineffective, risky, and overpriced medications.

Dr. Sidney Wolfe, an advocate for healthcare reform and increased oversight in the U.S. health system, has died at the age of 86 after battling brain cancer.