WebMD Symptom Checker helps you find the most common symptom combinations and medical conditions related to palpitations (fluttering in chest). Click on the combination that matches your symptoms to find the conditions that may cause these problems.
Nerve agents are a class of phosphorus-containing organic chemicals (organophosphates) that disrupt the mechanism by which nerves transfer messages to organs. The disruption is caused by blocking acetylcholinesterase, an enzyme that normally destroys acetylcholine, a neurotransmitter.
What is VX? VX is a lethal nerve agent and one of the deadliest chemicals ever created by man. It is classified as a weapon on mass destruction by the UN and can come in liquid, gas or cream form. A victim can be subjected to as little as 10mg and be dead within 15 minutes.