A powerful neurotoxin called epibatidine, secreted by an Ecuadorian frog, is being investigated as the cause of Alexei Navalny's death. Western scientists discovered it in the 19th century, and it was synthesized in the 1990s, reportedly attracting Russian research interest.

Two years after Alexei Navalny's death in prison, five European countries claim to have identified epibatidine, a dart-frog toxin, as the substance used to poison the Russian opposition leader.

The toxin, epibatidine, can be found in frogs in the wild in South America or manufactured in a lab.

Alexei Navalny's doctor suggests the Kremlin critic was killed with Epibatidine, a 'frog poison,' which was likely chosen for its perceived ease and safety by those responsible.

Yvette Cooper may think so, and use of epibatidine may seem exotic, but experts say that is not conclusive It was a very particular choice of weapon, but experts say it remains unclear whether the dart frog toxin used to kill the Russian opposition leader Alexei Navalny was intended to convey a message. Known as epibatidine, the poison is produced by wild dart frogs native to parts of South America – meaning Navalny could not have accidentally taken the poison. Continue reading...

A BBC article explores epibatidine, a toxin found in dart frogs or manufactured in labs, which is allegedly connected to the death of Russian opposition leader Alexei Navalny.

Alexandr Polupan, a doctor involved in saving Alexei Navalny in 2020, states that Epibatidine acts similarly to Novichok, explaining why the regime might have used a different poison in a second attempt.

Speculation surrounds the use of frog toxin in the poisoning of Navalny, with experts suggesting the situation is ambiguous despite the exotic nature of epibatidine.