What are Novichok agents and what do they do?

What could doctors do?

Poisoning with organophosphates can be treated with atropine, a drug that blocks acetylcholine, although it isn’t an antidote. Vil Mirzayanov, a former Russian chemist at Russia’s State Research Institute of Organic Chemistry and Technology, told Sky News that those who were exposed could be at risk of illness for years to come. He said slight exposure could produce headaches, cognitive difficulty and problems with coordination.