This review article cites one study in particular in which results showed that pretreatment with 30 minutes of exposure to a 75-mT pole strength, DC-powered magnetic field significantly prevented experimentally induced seizures in mice.

M.J. McLean, et al., “Therapeutic Efficacy of a Static Magnetic Device in Three Animal Seizure Models: Summary of Experience,” Second World Congress for Electricity and Magnetism in Biology and Medicine, 8-13 June 1997, Bologna, Italy.