Mild toxicity . If ingested in small amounts, these plants will probably not cause any toxic symptoms. Symptoms are usually limited to mild throat irritation, nausea, vomiting or diarrhea. These plants contain calcium oxalate crystals, which may cause an intense stinging or burning sensation if ingested or upon skin contact. These symptoms usually will resolve with time.
Treatment consists of giving fluids to drink if ingested or thorough washing with skin contact.
Large ingestions can result in swelling of the throat and mouth which can potentially result in problems breathing. The juice and sap of these plants are very irritating and can cause pain if allowed to penetrate cuts or wounds. Major Toxicity . Ingestion of these plants can result in severe toxic reactions and injury to major organs like the heart, kidney, liver and nervous system. They can also result in other life threatening symptoms like seizures or hallucinations.