Like Fluoride or Oxygen.
Panadol / Paracetamol / Tylenol / Acetaminophen / C8H9NO2 is exceptionally easy to overdose on. I've done it accidentally a couple of times. It causes liver damage at even lower overdoses, you really don't want that.
The maximum dosage is 1g every 4 to 6 hours, maximum total 4g a day. I am no doctor but I strongly recommend 6+ hours between doses (I set a timer) and I try very hard to not get to 3g or above per day. It's even worse that plenty of medications just throw it in to the mix casually.
Unfortunately as the only first line of defence I have against pain, I cannot avoid it altogether.
ThirdWorldOrder@lemm.ee 1 year ago
Just about anything including water or salt
howrar@lemmy.ca 1 year ago
Not just about. Literally everything is lethal at a high enough concentration.
Duranie@lemmy.film 1 year ago
LD50’s are fun!
en.m.wikipedia.org/wiki/Median_lethal_dose
raspberriesareyummy@lemmy.world 1 year ago
I’d argue gravitational force isn’t lethal. As long as you don’t arrive at whatever is pulling you & the gradient of gravity doesn’t change across your body length. You could be perfectly fine (for a while) orbiting a black hole at enormous speeds (assuming you don’t collide with matter in the accretion disc.
ThirdWorldOrder@lemm.ee 1 year ago
The first part of the question asks what is safe in small amounts
davidgro@lemmy.world 1 year ago
I thought about this a bit and concluded that it only applies to physical materials and forces.
For example: There certainly are lethal ideas, but most of them are not, and much like bosons they can overlap, so filling a person with multiple copies of the same (benign) thought has a diminishing effect.
But yeah, anything physical has a lethal concentration.