Cathartic

This is similar to a laxative, which is a substance that eases defecation, usually by softening feces.

However, agents such as psyllium seed husks increase the bulk of the feces.

[2][3] Cathartics such as sorbitol, magnesium citrate, magnesium sulfate, or sodium sulfate were previously used as a form of gastrointestinal decontamination following poisoning via ingestion.

[4] High-dose cathartics may be an effective means of ridding the lower gastrointestinal tract of toxins; however, they carry a risk of electrolyte imbalances and dehydration.

[5] Catharsis can be an effect of pesticide poisonings, such as with elemental sulfur.