Early veterinary treatment is essential. Mineral absorbants such as kaolin or Fuller's Earth can be used to absorb paraquat from the stomach. Clinical signs develop within three hours of ingestion and include tachycardia, salivation, tremors, and seizures, hyperthermia, diarrhea, and depression. Death may occur within 4-24 hours from rspiratory failure. Death due to liver failure may occur in three ot four days after ingestion.
First treatment is to induce vomiting, then take the cat immediately to the veterinarians.