Frog poison, tear gas and Novichok: Inside Russia’s chemical weapons programme

Battle Lines: Global Health Security – Summary (February 18, 2026)

Key Concepts:

• Epibatadine: A potent, naturally occurring frog poison with analgesic properties, but a narrow therapeutic window making it unsuitable for widespread medical use. Its chemical simplicity makes synthesis feasible for weaponization.
• Chemical Weapons Convention (CWC): An international treaty prohibiting the development, production, stockpiling, and use of chemical weapons.
• Biological and Toxin Weapons Convention (BTWC): A treaty prohibiting the development, production, and stockpiling of biological and toxin weapons.
• Russian Chemical Weapons Program: Despite declarations of destruction, Russia maintains active research and development, utilizing both sophisticated “boutique” agents and widely available industrial chemicals.
• Hybrid Warfare: The use of unconventional tactics, including chemical weapons, disinformation, and cyberattacks, as part of a broader strategy.
• OPCW (Organisation for the Prohibition of Chemical Weapons): The implementing body of the Chemical Weapons Convention, responsible for verification and investigation of chemical weapon use.

1. The Assassination of Alexei Navalny & Identification of the Poison

The discussion centers around the recent confirmation that Russian opposition leader Alexei Navalny was killed using epibatadine, a rare and potent frog poison. Five European countries, including the UK, identified the substance. Epibatadine, originally identified in the 1970s from Ecuadorian jungle frogs, is a powerful painkiller that disrupts cell communication in the central nervous system. However, its effectiveness as a painkiller is very close to its lethal dosage, preventing widespread medical application. Dr. Gemma Baer explained that while the compound itself isn’t exceptionally difficult to synthesize, its use signifies a deliberate act of chemical weaponization. She noted that many compounds with medicinal properties can be repurposed for malign purposes. The relative simplicity of epibatadine’s chemical structure means research into it isn’t inherently suspicious, but publications from Russian organizations suspected of chemical weapons development are a “smoking gun.”

2. Acquisition and Production of Epibatadine

Russia did not collect poison dart frogs to obtain the substance. Instead, they likely synthesized epibatadine in a laboratory using established chemical techniques, specifically chromatographic techniques (described as akin to disassembling and rebuilding Lego structures). Hamish Deb Breton Gordon emphasized that relatively small quantities of the poison are needed for targeted assassinations, unlike the large-scale production required for battlefield use.

3. Proving Russian Involvement & Sample Acquisition

The UK and other European nations were able to prove the use of epibatadine through forensic analysis of samples obtained from Navalny. Hamish Deb Breton Gordon highlighted the importance of proper sample collection and preparation for admissibility as evidence. The process involved individuals opposed to the Russian state and likely assistance from Western security services in smuggling samples out of Russia. Analysis was conducted at Porton Down (UK) and other OPCW-designated laboratories (including one in Sweden) which confirmed the presence of the poison. Foreign Secretary Ivette Cooper’s public statement underscored the certainty of state involvement. The ease with which samples were obtained, while concerning, suggests a degree of ineptitude within the Russian security services.

4. Russia’s Chemical Weapons Program: Scope and Intent

The incident reveals the continued activity of Russia’s chemical weapons program, despite previous declarations of destruction. Hamish Deb Breton Gordon pointed to past incidents like the poisoning of Sergei Skripal with Novichok as evidence of a pattern. Russia uses these exotic toxins to send a message – that it can kill anyone, anywhere, and that it possesses advanced capabilities. Gemma Baer differentiated between “boutique” agents like epibatadine (used for targeted assassinations) and industrial chemicals like chloropicrine (used on the Ukrainian battlefield). Russia’s use of chloropicrine, while presented as a riot control agent, functions similarly to nerve agents in clearing trenches. The existence of facilities like Shakani (previously used for large-scale production) suggests ongoing research and development.

5. The Erosion of the Chemical Weapons Taboo & International Response

Hamish Deb Breton Gordon expressed concern that the taboo surrounding chemical weapons use is eroding, citing the Obama administration’s response (or lack thereof) to the Halabja chemical attack in 1988 as a turning point. Russia’s willingness to use chemical weapons, even if not always headline-grabbing, demonstrates a disregard for international norms. The CWC and BTWC are vital instruments for maintaining safeguards, but Russia actively undermines them through disinformation and false accusations. While sanctions and international pressure are important, the focus should also be on countering Russian narratives and supporting forensic investigations. The case of Navalny will be added to the list of war crimes attributed to Putin.

6. The Role of Artificial Intelligence in Chemical Weapons Development

Gemma Baer discussed the potential for artificial intelligence to accelerate the development of new chemical and biological weapons. Research by colleagues demonstrated the ability to generate 40,000 molecules, including VX gas, in just six hours. While AI offers benefits for drug discovery, it also presents a dual-use dilemma, potentially enabling the creation of more potent and dangerous agents. The focus on AI in biological weapons development is currently greater, but the chemical weapons space is also a concern.

7. Historical Context & Personal Connection

Hamish Deb Breton Gordon shared a personal anecdote about his grandmother’s father surviving a chlorine gas attack in World War I, highlighting the long-lasting impact of chemical warfare. This underscored the importance of preventing the re-emergence of such weapons.

Data & Statistics:

• 9,500+ uses of chloropicrine by Russia on the Ukrainian battlefield (as reported by Ukrainian brigades).
• 95%+ of declared chemical weapons stockpiles have been removed globally through the CWC.
• 6 hours: Time taken to generate 40,000 molecules (including VX gas) using AI in a research experiment.

Synthesis/Conclusion:

The assassination of Alexei Navalny using epibatadine underscores Russia’s continued disregard for international norms and its active chemical weapons program. While Russia employs both sophisticated “boutique” agents for targeted killings and widely available industrial chemicals on the battlefield, the underlying message remains consistent: a demonstration of power and a willingness to use any means necessary to silence opposition. The erosion of the chemical weapons taboo, coupled with the potential for AI to accelerate weapon development, presents a significant global security challenge. Strengthening international conventions, countering disinformation, and supporting forensic investigations are crucial steps in mitigating these risks. The incident serves as a stark reminder of the ongoing threat posed by Russia and the need for continued vigilance and a robust response.