Ingesting ethylene glycol can cause serious illness. The first symptom of ethylene glycol ingestion is similar to the feeling caused by drinking alcohol (ethanol). Other symptoms may include nausea, vomiting, convulsions, stupor or unconsciousness, according to the CDC.5
If you suspect possible ethylene glycol poisoning, seek emergency care immediately. Call the national Poison Control Center Hotline: 1-800-222-1222 and be sure to have the label from the product ingested in hand.