Unlabelled: We describe here a fatal abused case of cough syrup, containing chlorpheniramine and dihydrocodeine. Postmortem blood concentration of chlorpheniramine was above fatal levels, but dihydrocodeine concentration was within a therapeutic ranges, and those drug levels in blood were discussed from the viewpoint of forensic pharmacokinetics. We concluded that the cause death was due to the chlorpheniramine poisoning.
Keywords: cough syrup abuse - chlorpheniramine - dihydrocodeine.
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