Just scored a small bottle of Methadone Hydrochloride 10mg/ml. I have a pretty decent tolerance, I've been on another long opiate binge (about 4 months) and was wondering what the LD50 for Methadone is in a non tolerant person. I've looked online and most of what I've come up with is 30mg/kg in humans, which doesn't sound right at all. And also what would you guys guess would be the lethal dose for me? I weigh 56.82kg and have been doing about 60-100mg of OC daily for the past four months, along with a little H, Hydromorphone, Morphine, and Hydrocodone.