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OU Toxicology
Toxicology for USMLE/COMLEX I
| Toxin | Antidote |
|---|---|
| acetaminophen | N-acetylcholine |
| salicylates | alkalinize urine; dialysis |
| anticholinesterases, organophosphates | atropine, pralidoxime |
| beta-blockers | glucagon |
| digitalis | stop dig, normalize K+, lidocaine, anti-dig Fab fragments, Mg2+ |
| iron | deferoxamine |
| lead | gastric lavage + demercaprol or EDTA or succimer; succimer for children |
| arsenic, mercury, gold | dimercaprol (BAL), succimer |
| copper, arsenic, gold | penicillamine |
| cyanide | nitrite, hydroxocobalamin, thiosulfate |
| methomoglobin | methylene blue |
| carbon monoxide | 100% O2, hyperbaric O2 |
| methanol, ethylene glycol | fomepizole,ethanol, dialysis |
| opioids | naloxone/naltrexone |
| benzodiazepines | flumazenil |
| TCAs | control seizures & hyperthermia; correct acidosis & arrhythmias |
| heparin | protamine |
| warfarin | vitamin K, fresh frozen plasma |
| tPA, streptokinase | aminocaproic acid |
| isoniazid | pyridoxine |
| all oral poisons except Fe, Li CN, solvents, mineral acids, K+, corrosives | activated charcoal |
| AChE inhibitors | atropine + pralidoxime (for irreversible AChE inhibitors) |
| atropine, muscarinic blockers | physostigmine (crosses BBB) |
| CNS stimulants | control CV Sxs, hyperthermia & seizures; +/- BZs or antipsychotics |
| sedative-hypnotics & ethanol | vent support; flumazenil if BZs implicated |
| SSRIs | control hyperthermia & seizures; possibly cyproheptadine, antipsychotics, & BZs |