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.
'One of the most dangerous chemicals created.' The V of VX indicates its long persistence. It is far more dangerous and toxic than the G variety of nerve agents such as GA (Tabun) and GB (Sarin), which disperse quickly and possess only short-term effects.