Question - What is the so-called Novichok agent?
Answer- The cited reference notes that the Novichok agents are a group of Soviet chemical weapons that are cholinesterase inhibitors. These authors further note “Novichok – choline esterase inhibitors (Novichok 5 and Novichok 7). They are effecting very rapidly, penetrate through the skin and respiratory system. Novichok 5 exceeds effectiveness of soman by 10 times and of VX by 5 to 8 times.” (Yasarhelyi G and Foldi L. History of Russias chemical weapons. 2007 AARMS 6(1):135-146)