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.
Simon Cotton. As far as it is possible for an inanimate object to become a film star, VX has that sort of celebrity â or maybe infamy. VX is what is generally known as a nerve agent. Some people call them nerve gases, but in fact they are all liquids at normal temperatures. They are indelibly associated with war and weapons, though they have never been used in a conventional war. VX Â© Shutterstock.