>>33367610 (OP)BTW, Tylenol-3 codeine with tylenol in it. Codeine alone is dangerous because there are no side effects to overdosing on it. They add the tylenol as a non-separable carrier so that you will induce liver failure from ODing on the tylenol before you could OD on the codeine itself.
It's safer to keep around long term than other similarly strong narcotics for this reason, as it makes it unlikely to be resold.