Our expert says:
Codeine can indeed lead to a troublesome addiction, and is one of the opiate drugs related to morphine and heroin. Though easily available in SA it is banned without prescription in some countries ( such as, I think, Greece ).
As you describe, when symptoms start to arise when you cut the dose, and/or if you need to increase the dose to achieve the same effects, that is indeed dependence. In addition, Codeine, for instance, usually produces marked constipation, which in itself can cauzse stomach aches, and so on.
Hard to predict exactly how your attempt to stop cold turkey will go, but I'm pleased to hear it has so far gone without serious problems. Especially in SA, where the drug and its potential dependence are not taken seriously enough, I know of no local studies of methods / plans for withdrawing it and how they go. Maybe consulting a shrink or doc who works with drug dependence and rehab would help, as they're the people most likely to have direct experience of this.
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