Mothballs
Naphthalene, paradichlorobenzene
Pungent aroma
Ethchlorvyno
Wintergreen
Methyl salicylate
Rotten eggs
Hydrogen sulfide, stibine, mercaptans, old sulfa drugs
are substances that counteracts or neutralizes the effects or actions of a poison.() exert their beneficial effects by a variety of mechanisms, including forming an inert complex with the poison, accelerating detoxification of the poison, reducing the rate of conversion into a more toxic compound, competing with the poison for essential receptor sites, blocking essential receptors through which the toxic effects are mediated and by passing the effect of the poison
Antidotes
may play an important role in the management and treatment of certain poisons. There are only a small number of poisons for which there is a specific antidote. Antidotes are only one aspect of the management of a poisoned patient.
Antidotes
neutralizes the poison by changing its chemical nature or oxidize the poison into non-toxic or insoluble form
Chemical antidote
one that prevents absorption of the poison
Mechanical antidote
one that counteracts the effects of poison by producing opposing physiologic effects
Physiologic antidote
Sodium thiosulfate converts cyanide into
Thiocyanate
Mechanical antidote
activated charcoal
Physiologic antidote
Naloxone-morphine
Chelating agents
EDTA
Acids, corrosive
Dilute with water or milk (then give non absorbable antacid)
Alkali, caustic
Dilute with water or milk (then give demulcent)
Amphetamines, anticholinergics, anticholinesterases local
Activated charcoal
Amphetamines systemic
Chlorpromazine
Anticholinergics
Physostigmine
Anticholinesterases
Atropine
Barium salts local
Sodium sulfate