An composition comprising: a homopolycarbonate; a poly(carbonate-siloxane) having a siloxane content of 30-70 wt %, preferably 35-65 wt %, based on the total weight of the poly(carbonate-siloxane) present in an amount effective to provide 2-10 wt % total siloxane, based on the total weight of the composition; an antimicrobial agent, wherein the antimicrobial agent is a silver zinc zeolite powder, wherein the antimicrobial agent is present in amount effective to provide up to 1000 parts per million of elemental silver based on the total weight of the composition and optionally, an additive composition.