STAMFORD, Conn. — The sculpture, about 10 feet long and weighing some 700 pounds, is a huge depiction of the sort of spoon addicts use to cook heroin before injecting it.

On Friday morning, the spoon, by the Boston-based sculptor Domenic Esposito, was unloaded here outside the headquarters of Purdue Pharma, the makers of the painkiller OxyContin.

Some of Mr. Esposito’s work exploring the ways that addiction affects lives will appear in a new exhibition at a gallery a few blocks away. He and the gallery owner, Fernando Luis Alvarez, said they were at Purdue to shame the company, asserting that its much-abused drug had led countless people to dependence and served as a gateway to other narcotics like heroin.