The school says Ricks and Madison received the benefits in 2012-13, when they played under former coach Mark Phelps. They'll miss Drake's first three games, starting with Friday's opener against Bowling Green.
Athletic director Sandy Hatfield-Clubb says the school launched an internal review. She says Ricks and Madison ''worked diligently'' to resolve the issue.
Ricks is the team's leading returning scorer with 12.3 points a game last season. Madison averaged 2.2 points a game in 2013-14.