The action of Farmotal action, at 0,1%-0,0001% concentration, was experimented on in vitro cultivated myocardium, lobi ottici and spinal ganglia. 0,01%-0,10% concentrations depressed myocardial cellular migration and proliferation; 0,04% concentration stopped contractile activity instantly. Spinal ganglia and lobi ottici expiants underwent regressive deterioration for 10 times ower doses (0,002%-0,008%). Nerve fibres gave out hyaline buds, cells regressed and both disintegrated in the end.