nurofen plus had codeine in it, and opiates can fool you into thinking you have pain so you take more of them, then when you do take more, the opiate increases the pain, WHY so you take more, sneaky ******* things they can be.Some people are on high dose morphene for years and when they stop the pain goes. Hmm strange addiction though, i would have gone in my earlier days for panadiene 15, had 15mg codiene take eight of those and its real nice.