Acedicon
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Acedicon is dihydrocodeine enol acetate , and it is made by acetylating dihydrocodeine which itself is produced by hydrogenating codeine .
Acedicon is a scheduled drug (narcotic) and is not used by the medical profession .
This and more information about acedicon is available in the Merck Index (But not in the Merck Manual , which is a different book entirely).
"The Merck Index" http://en.wikipedia.org/wiki/Merck_Index