A member of the family that owns OxyContin maker Purdue Pharma told people at the prescription opioid painkiller’s launch party in the 1990s that it would be “followed by a blizzard of prescriptions that will bury the competition,” according to court documents filed Tuesday. “The launch of OxyContin Tablets will be followed by a blizzard of prescriptions that will bury the competition. The prescription blizzard will be so deep, dense, and white,” he said, according to the documents.