I have never heard of LD50 before reading a post here and tried to look up hydrocodone's LD50. As far as I understand LD50 is the min. amount given to a certain animal that kills the animal. SWIM read something about 300mg of Hydro for a Rat however that doesn't seem possible. Most people would OD taking 30 10mg esp. without tolerance. Anyone have a more accurate LD50 or read any other studies on what amount sends a non-tolerant animal or person into an OD or death off Hydro?