Click Here To Order Now: https://mayomeds.com/pain-relief/codeine-15-mg/ Buy Codeine 15mg Online Free Delivery and Get a coupon Voucher. Codeine is used to relieve moderate pain. It belongs to a group of medications called narcotic analgesics. The drug is often available in a combination product with promethazine or an NSAID, cough and cold. This medicine acts on the central nervous system.