A health plan will be helping members auction off the opportunity to sell them medicine.

Trilogy Health Insurance Inc., Brookfield, Wis., will be working with BidRx L.L.C., Oshkosh, Wis., to offer employers with 99 or fewer employees a medical insurance plan that incorporates the BidRx drug purchasing service.

Plan members who need prescription quickly will be able to fill them the usual way, but members who have more time, such as those with chronic conditions, can log on to the BidRx and get competitive bids from companies that want to sell them prescription drugs.