Seizures | Propranolol | Insecticides (eg, organophosphates, carbamates) | Lidocaine and other local anesthetics | Sympathomimetics | Cocaine | Amphetamines | Theophylline | Caffeine | Nicotine | Withdrawal from GABA agonists or Carisoprodol | Antidepressants | TCAs | Bupropion | Citalopram | Escitalopram | Fluvoxamine | Venlafaxine | Amoxapine | Maprotiline | Antipsychotics | Phenothiazines | Clozapine | Salicylates | Camphor | Isoniazid | Chemical nerve agents (eg, soman, VX) | Lithium | Hypoglycemic agents | Cyanide | Carbon monoxide | Meperidine | Propoxyphene | Orphenadrine | Antihistamines (rare) | Lindane | Gyromitra-containing mushrooms | Heavy metals | Antimicrobials | Imipenem | Penicillins | | Tremors/myoclonus | Lithium | Antipsychotics | Sympathomimetics | Cocaine | Theophylline | Amphetamines | Caffeine | Albuterol | Methylphenidate | Cathinones | Anticholinergics | Antihistamines | TCAs | Drug withdrawal states | Carisoprodol | Heavy metals | Rigidity/parkinsonism | Antipsychotics (neuroleptics) | Metoclopramide | Amoxapine | Carbon monoxide (delayed) | Methanol | Ethylene glycol | Phencyclidine | MAOIs | Serotonin syndrome | Black widow spider bite | Lithium | Methaqualone | MPTP (designer meperidine) | Manganese | Strychnine | Carbon disulfide | Cyanide | Malignant hyperthermia | Neuroleptic malignant syndrome | Postanoxic injury from any agent | | Choreoathetosis | Cocaine | Anticholinergics | TCAs | Antihistamines | Antiseizure medications | Phenytoin | Carbamazepine | Weakness/paralysis | Barium (hypokalemia) | Magnesium | Solvent abuse | Toluene | Gasoline | Heavy metals | Mercury | Thallium | Insecticides | Organophosphates | Carbamates | Nicotine | Botulism | Neurotoxic snake envenomation | Tick paralysis | Seafood poisoning | Paralytic shellfish | Pufferfish (fugu) | |