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Example Content from MEDITEXT for Promecarb:
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ACUTE EXPOSURE INFORMATION
- USES: Promecarb is a carbamate insecticide which is not manufactured or used in the US. Little is known about its acute or chronic effects in humans.
- TOXICOLOGY: Carbamate insecticides, competitively inhibits pseudocholinesterase and acetylcholinesterase, preventing hydrolysis and inactivation of acetylcholine. Acetylcholine accumulates at nerve junctions, causing malfunction of the sympathetic, parasympathetic, and peripheral nervous systems and some of the CNS. Clinical signs of cholinergic excess develop.
- EPIDEMIOLOGY: Exposure is unlikely in the US. It may be a source of poisoning in developing countries. Toxicity is generally less severe than with organophosphates.
- WITH POISONING/EXPOSURE
- OVERDOSE: The following are symptoms for carbamate insecticides in general. These effects may not have been observed for promecarb, but could potentially occur in individual cases.
- MILD TO MODERATE POISONING: MUSCARINIC EFFECTS: Can include bradycardia, salivation, lacrimation, diaphoresis, vomiting, diarrhea, urination, and miosis. NICOTINIC EFFECTS: Tachycardia, hypertension, mydriasis, and muscle cramps may develop.
- SEVERE POISONING: MUSCARINIC EFFECTS: Bronchorrhea, bronchospasm, and acute lung injury. NICOTINIC EFFECTS: Muscle fasciculations, weakness, and respiratory failure. CENTRAL EFFECTS: CNS depression, agitation, confusion, delirium, coma, and seizures. Hypotension, ventricular dysrhythmias, metabolic acidosis, pancreatitis, and hyperglycemia can also develop.
- CHILDREN: May have different predominant signs and symptoms than adults (more likely CNS depression, stupor, coma, flaccidity, dyspnea, and seizures). Children may also have fewer muscarinic and nicotinic signs of intoxication (ie, secretions, bradycardia, fasciculations, and miosis) as compared with adults.
- INHALATION EXPOSURE: Vapors rapidly produce mucous membrane and upper airway irritation and bronchospasm, followed by systemic muscarinic, nicotinic, and central effects if exposed to significant concentrations.
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