Add to ORKGThis fact sheet answers the most frequently asked health questions about dichlorvos. For more information, you may call the ATSDR Information Center at 1-888-422-8737. This fact sheet is one in a series of summaries about hazardous substances and their health effects. This information is important because this substance may harm you. The effects of exposure to any hazardous substance depend on the dose, the duration, how you are exposed, personal traits and habits, and whether other chemicals are present.Dichlorvos is an insecticide which is used to control insects primarily in storage areas and barns. It can affect the nervous system where it may cause nausea and vomiting, restlessness, sweating, and muscle tremors at high levels. Dichlorv...