Purdue Pharma’s production and sale of OxyContin helped make the Sacklers one of the richest families in America—and, in turn, a top donor to some of the world’s largest art museums. But it also helped create and abet the opioid crisis, and on Friday, the Solomon R. Guggenheim Museum in New York announced it would no longer take Sackler money. The move comes three days after the National Gallery of Art in London rejected a one-million-pound donation from the Sacklers.