In adults, excessive use of some painkilling drugs may cause severe kidney damage.

对于成年人，过度服用某些止痛药可能导致严重的肾损伤。

One type of marine snail, Conus magus, was recently discovered to produce a painkilling compound 1,000 times more potent than morphine.

最近有研究发现，一种名为僧袍芋螺的海蜗牛能产生比吗啡强1000倍的止痛化合物。

The musician died of an accidental drug overdose of powerful painkilling drugs in 2016.

这位音乐家于 2016 年死于意外服用强力止痛药过量。

One compound that does this is cocaine, whose painkilling effects were discovered by accident when an ophthalmology intern got some on his tongue.

一种能起到这种作用的化合物是可卡因，它的镇痛作用是在一位眼科实习生的舌头上沾到一些后偶然发现的。