SIDE EFFECTS Codeine Codeine requires a larger dosage to achieve the same feeling FDA Labeling for Codeine Sulfate on RxList SIDE EFFECTS some cases SIDE EFFECTS https://www.rxlist.com/codeine-sulfate-drug.htm#side_effects https://www.rxlist.com/codeine-sulfate-drug.htm#interactions SIDE EFFECTS https://www.rxlist.com/codeine-sulfate-drug.htm#description “cold turkey” withdrawal strategy codeine https://www.rxlist.com/codeine-sulfate-drug.htm