How long after ingesting bromethalin by mistake will symptoms appear?

Bromadiolone is an anticoagulant rodenticide that appears as a white to gray crystalline powder and is highly toxic. In general, symptoms may appear 12–24 hours after accidental ingestion. The details are as follows:

If bromadiolone is accidentally ingested, the onset time and severity of symptoms may vary depending on the dose. After ingestion of a low dose, symptoms may develop within 24 hours, possibly including mild neurological issues such as motor discomfort, muscle twitching, or behavioral changes. Moderate doses of bromadiolone may lead to more severe neurological problems, such as muscle spasms, convulsions, and limb weakness, which may appear within 12–24 hours. Ingestion of a high dose may result in severe neurological damage, including paralysis and coma, with symptoms potentially emerging within a short period, usually within 12 hours.

If bromadiolone is accidentally ingested, emergency services should be contacted immediately regardless of whether symptoms are present. While waiting for the ambulance, induced vomiting may be performed. Upon arrival at the hospital, doctors typically administer treatments such as gastric lavage and catharsis. Vitamin K1 injection may also be given as an antidote. In severe cases, blood purification therapy might be required.

When using bromadiolone at home, it must be stored carefully to prevent accidental ingestion. If ingestion occurs, prompt medical attention is essential—do not rely on luck, as serious consequences could result otherwise.