In vitro forsøg viser, at levetiracetam påvirker de intraneuronale Ca2+ niveauer ved delvis hæmning af Ca2+ strømme af N- type og ved at reducere frigivelsen af Ca2+ fra intraneuronale lagre.
In vitro studies show that levetiracetam affects intraneuronal Ca2+ levels by partial inhibition of N-type Ca2+ currents and by reducing the release of Ca2+ from intraneuronal stores.