Dianthus contains toxic compounds that cause mild gastrointestinal problems and skin irritation in animals, especially cats and dogs. Terpenoid saponins in all parts of the plant can lead to vomiting, diarrhea, and redness/swelling of lips and mouth. Seek veterinary care if additional symptoms like weakness and dehydration appear. Toxicity is usually not life-threatening. Dianthus is mildly toxic to cats and dogs. Potential symptoms include vomiting, diarrhea, and skin irritation from contact with dianthus plant. Intensive veterinary care could be necessary if secondary symptoms like dehydration occur. Seek veterinary care immediately if secondary symptoms, such as weakness or dehydration, arise.