Russia said Navalny died of heart problems. What five European labs found in his samples tells different story

Russian opposition politician Alexei Navalny’s biological samples have tested positive for the highly toxic substance epibatidine. This was confirmed by laboratories in five European countries — the UK, Sweden, France, Germany, and the Netherlands, according to The Insider. 

Ukraine has generally viewed Navalny critically, considering him not a genuine fighter against the Putin regime but rather a nationalist with pro-Russian views on Ukraine.

Between 2014 and 2017, Navalny used the metaphor “Crimea is not a sausage sandwich” to openly state that the peninsula could not be “thrown back and forth,” that it remained part of Russia, and “in the foreseeable future” would not return to Ukraine.

Small dose — high risk: how epibatidine affects the body

Several independent laboratories have analyzed the samples and detected the presence of the toxin, which is found in the skin of the American tree frog and is considered extremely dangerous.

According to The Insider, representatives of the five countries plan to issue a joint statement during the Munich Security Conference.

Resuscitation doctor Oleksandr Polupan, who previously treated Navalny after his Novichok poisoning, has noted that the published symptoms of the politician correspond to known data on the effects of epibatidine. 

“Even minimal doses can cause convulsions, respiratory paralysis, and be fatal," he said. 

Epibatidine acts on nicotinic acetylcholine receptors in the nervous system. In very small doses, it may have an analgesic effect, but exceeding the threshold dose is critically dangerous.

In vitro studies show that the substance is poorly metabolized in the human body, and the maximum concentration in the brain is reached approximately 30 minutes after administration.