Bufotoxin

They occur in the parotoid glands, skin, and poison of many toads (Bufonidae family) and other amphibians, and in some plants and mushrooms.

Bufotoxins can contain 5-MeO-DMT, bufagins, bufalin, bufotalin, bufotenin, bufothionine, dehydrobufotenine, epinephrine, norepinephrine, and serotonin.

The Pharmacopoeia of the People's Republic of China (ChP) considers the two species valid sources of toad poison (Chinese: 蟾酥; pinyin: Chánsū; Latin: bufonis venenum), and requires the dry product to contain at least 6% of cinobufagin and resibufogenin combined by weight.

[8] "Chan Su" (literally "toad venom") is often adulterated with standard painkillers, such as paracetamol, promethazine and diclofenac.

Other than the first, more benign symptoms (such as a tingling or burning sensation in the eyes, mucous membranes, or in exposed wounds), the most frequently described symptoms in the medical literature are : One epileptic episode caused by Bufotoxins was observed in a 5-year old child, minutes after they had placed a Bufo alvarius in their mouth.