['The aim of the present study was to examine the influence of partial NMDA receptor agonist d-cycloserine (DCS) on the extinction of conditioned alcohol-seeking behaviour.', 'For this purpose, rats were administered with DCS 60 min before each successive extinction session. Resumption of alcohol responding was carried out 1 day after the final extinction session.', 'We demonstrate that treatment of rats with 5 mg/kg of DCS was capable in facilitating extinction of conditioned alcohol-seeking behaviour, which subsequently reduced the resumption of extinguished operant responding.'] Does d-cycloserine facilitate extinction of conditioned alcohol-seeking behaviour in rats?