...As far as I understand, 1 grain ~ 64,79mg.
ChatGPT calculations say that in one drop of 10% of Laudanum there is 0.05ml, ans 5mg of Opium, and therefore about 0.5mg of morphine.
So 8000 drops = 4000mg of Morphine.
Pretty strong habit, buy not really special.
People on morphine substitution...