WHAT IS THE LETHAL DOSE OF HEROIN?
Table 2, below, shows that the lethal dose range of intravenous heroin is generally regarded as 10 mg to 12 mg. Sometimes even a tiny dose can kill, so the lethal dose of intravenous heroin can go as low as 3 mg, possibly even lower. Some people get confused and think that high variability in the minimum lethal dose means that a similar variability exists for the maximum lethal dose. The most serious heroin addicts will die with virtual certainty with much less than a dose of 75 mg to 80 mg of heroin. After studying many hundreds of such cases, it is clearly established that 75 mg to 80 mg is the maximum lethal dose for even the most severe heroin addicts. Note that in a low tolerance person, in an average hospital setting, a small effective therapeutic dose of intravenous heroin is only 3 mg to 4 mg. The important thing to note here is that the problems associated with establishing a “lethal dose” for intravenous heroin primarily relates to the problem of establishing a “minimal letha
