Jalwun jiwin

Compared to other poisons used by drows, this one seems to be a nice warning. This black poison is prepared from the venom of an underground toad. The victim is sick with nausea, fever and vomiting.
A creature subjected to this poison must succeed on a DC 14 Constitution saving throw or be poisoned for several days. At the end of each long rest, the creature can make a new saving throw to end the effect, which never exceeds one week.