The estimated lethal dose (LDmin) of taxine alkaloids is approximately 3.0 mg/kg body weight for humans.[27][28] Different studies show different toxicities; a major reason is the difficulty of measuring taxine alkaloids.[29]
It goes on to say that rats are ~20mg/kg, which would put a human at somewhere less than 1.4grams.
Which is close enough to, "any exposure at all will kill".
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Taxine alkaloids[0]
It goes on to say that rats are ~20mg/kg, which would put a human at somewhere less than 1.4grams.Which is close enough to, "any exposure at all will kill".
[0] https://en.wikipedia.org/wiki/Taxine_alkaloids