On Wednesday, a Pussy Riot member Nadezhda Tolokonnikova said Verzilov had been discharged from the hospital.
"Toxicology tests have not yet shown a certain substance that caused [the poisoning]. As before, the Charite clinic is maintaining contacts with Moscow clinics to receive any information about Verzilov’s preliminary treatment, if necessary," the Charite CEO, Karl Max Einhaupl, said in a statement, published on Wednesday.
Earlier in September, Verzilov was hospitalized in Moscow after he said he was losing sight, hearing and ability to walk. The activist was subsequently taken to Germany for treatment.
Verzilov suggested in an interview published on Wednesday that he had been poisoned by Russia’s intelligence service. The activist added that the authorities might have been angry at him for disrupting the soccer game or for his plans to investigate the recent murder of three Russian journalists in the Central African Republic.