Croton oil, Asafoetida, and Ipecac?! Egad!
Some of those are poisons that were once thought medicines.
Here are clips from Wikipedia:
Croton oil is prepared from the seeds of the Croton Tiglium tree, of India and Malay. Small doses taken internally cause diarrhea. Externally, the oil can cause irritation and swelling.
Today, croton oil is the basis of rejuvenating chemical peels, due to the caustic exfoliating effects.
Syrup of Ipecac (derived from the roots of the Ipecacuanha plant), is an emetic—a substance used to induce vomiting. It is used in cases of accidental poisoning. Ipecac was also used in cough mixtures as an expectorant and from the 18th until the early 20th century, Ipecac and opium were used to produce Dover's powder, which was used in syrup form.
Asafoetida, (also known as devil's dung, stinking gum, and giant fennel) is native to Iran.
It is used in lentil dishes to reduce flatulence.
Its odor is so strong as to be nauseating in quantities.
John C Duval reported in 1936 that the odor of asafetida is attractive to the wolf, a matter of common knowledge, he says, along the Texas-Mexican border.
It is used as scent bait for catfish and pike.
Asafoetida also aborts babies and prevents epilepsy!
I'll be a Suck Egg Mule