05-16-2004, 04:40 AM
I don't know about old versions, but in 1.09 and 1.10, that only happens when the new poison has a higher rate. This can still be a bad thing, though. If you had a 100 damage per second poison over 10 seconds and a 101 damage per second poison over 1 second, the second one would replace the first and thus drastically reduce the total amount of damage.