Accordingly, the present invention relates to a pressure sensitive adhesive composition consisting of a continuous phase comprising cross-linked polyalkyleneoxide polymer and a discontinuous phase comprising water absorbent hydrophilic agents wherein a) the water absorbent hydrophilic agent(s) is present in an amount between 1 and 40% w/w of the total adhesive composition; and b) the continuous phase comprises the reaction product (X) of: (i) a polyalkyleneoxide polymer having one or more unsaturated end groups, and where more than 90% w/w of the polyalkylene oxide polymer consist of polymerised alkyleneoxide moities having three or more carbon atoms, and (ii) an organosiloxane comprising one or more Si--H groups, carried out in the presence of an addition reaction catalyst. The present invention also relates to medical devices comprising such pressure sensitive adhesives.