MORRISVILLE,Alfred Childers and Lowry Caudill, the co-founders of Magellan Laboratories, are leaving Cardinal Health, The News & Observer reported Tuesday.

Childers and Caudill agreed to stay on with Cardinal when the firm acquired Magellan last year for some $220 million. They signed three-year agreements to stay on with Cardinal, but both told The N&O “we’ve done everything” Cardinal had asked.

The two, both of whom were chemists at Glaxo, are considering starting a new venture.