heavy metal poisoning fluoride poisoning MESH:D005458 http://emedicine.medscape.com/article/814774-overview Fluoride toxicity is characterized by a variety of signs and symptoms. In the United States, poisoning most commonly follows ingestion (accidental or intentional) of fluoride-containing products. Symptom onset usually occurs within minutes of exposure, but may be delayed. Manifestations of fluoride toxicity are predominantly gastrointestinal (GI), but neurologic and cardiovascular effects also occur (see Presentation). Long-term exposure to fluoride through elevated levels in drinking water leads to skeletal and dental fluorosis. Wikipedia:Fluoride_toxicity fluoride toxicity Sirarat Sarntivijai