The invention discloses an antidote. The detoxifying medicine is prepared from one or more of levocarnitine, a levocarnitine derivative, a levocarnitine medicinal salt, a metabolic regulation medicine, an emetic, an oxidant, an adsorbent, a protective agent, a laxative, an organic phosphorus poisoning antidote, a metal poisoning antidote, a cyanide poisoning antidote, a methemoglobinemia antidote and a central nervous inhibitor antidote, a cholinesterase revivifier, a carbon monoxide poisoning antidote, an organic fluorine poisoning antidote, an alcoholism antidote, a bacterial poisoning antidote, a fungal poisoning antidote and an animal and plant-derived poisoning antidote. The antidote has the effects of promoting toxicant removal and protecting tissue and organ functions.