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Viscous, nauseating oil obtained from the shrub Croton tiglium (Euphorbaceae). It is a vesicant and skin irritant used as pharmacologic standard for skin inflammation and allergy and causes skin cancer. It was formerly used as an emetic and cathartic with frequent mortality.

A potent drastic purgative.

Drastic purgative oil from Croton liglium.

Vesicant purgative oil of seeds of C. tiglium.

A pale or yellowish brown viscid fixed oil expressed from the seeds of C. tiglium, of faint odor and hot and acrid taste. It contains croton oleic oil. It is a drastic purgative and is chiefly used in coma and in chronic constipation. Applied externally it acts as an irritant, causing a pustular eruption [U. S. Ph., Br. Ph.]. List of poisons and their antidotes, see in appendix, page 938.