Management of Paradichlorobenzene Ingestion – Evidence‑Based Recommendations

Immediate Stabilization

Prioritize supportive care—including airway protection, hemodynamic monitoring, and correction of metabolic derangements—because no specific antidote exists and gastrointestinal decontamination is generally not indicated. 1
Secure the airway and provide respiratory support as the foundational step in poisoning management. 3
Continuously monitor vital signs (blood pressure, heart rate, and oxygen saturation) in all patients with paradichlorobenzene ingestion. 1
Establish intravenous access for fluid resuscitation and medication administration when clinically indicated. 1
Correct critical metabolic derangements (hypotension, dysrhythmias, hypoxia) using standard resuscitation protocols. 2

Immediately contact the regional poison‑control center for case‑specific guidance; in the United States, call 1‑800‑222‑1222 to reach board‑certified medical toxicologists. 1
Do not delay the initiation of supportive care while awaiting poison‑control advice. 1

Monitor for central nervous system depression, including altered mental status and seizures, which can result from paradichlorobenzene exposure. 1
Assess hepatic function because aromatic hydrocarbons may cause liver injury. 1
Monitor renal function since kidney injury may occur with significant exposure. 1
Watch for hemolytic anemia, especially in individuals with glucose‑6‑phosphate dehydrogenase (G6PD) deficiency. 1
Provide symptomatic treatment for nausea, vomiting, or abdominal pain as needed. 1

Gastric lavage is contraindicated for paradichlorobenzene ingestion due to lack of proven benefit and significant risks such as aspiration pneumonia, dysrhythmias, and esophageal perforation. 4
Activated charcoal may be considered only if the patient presents within 1–2 hours of ingestion and has a protected airway; evidence of benefit specific to paradichlorobenzene is limited. 4
When administered, the standard activated charcoal dose is 1–2 g/kg body weight. 4

Do not delay airway management while attempting decontamination procedures. 3
Do not induce emesis with ipecac; it is no longer recommended and increases aspiration risk. 4
Do not assume the patient ingested only paradichlorobenzene—mixed ingestions are common and require broader toxicological assessment. 2
Do not provide supplemental oxygen unnecessarily if the patient maintains adequate saturation, as hyperoxia may worsen certain toxicities. 5