5 percent and preferably between 0 5 and 2 percent of triclosan in related non limiting embodiments of the invention the treatment solution may further comprise silver sulfadiazine preferably in a concentration of between 0 5 and 1 percent more preferably 0 75 percent section 7 below presents working examples of embodiments set forth in this paragraph in another particular non limiting embodiment the present invention provides for a hydrophobic polymeric medical article treated by dipping or soaking the article in a treatment solution of hydrophobic polymer comprising chlorhexidine and triclosan wherein the chlorhexidine and triclosan are present in amounts such that their combination in the treated article has effective antimicrobial activity in a specific non limiting embodiment the medical article is a silicone catheter or a polyvinylchloride catheter which has been dipped or soaked in a treatment solution comprising i between about 1 and 10 percent and preferably about 5 percent of a silicone polymer ii between 1 and 5 percent and preferably between 1 5 and 2 25 percent of chlorhexidine and iii between 0 5 and 5 percent and preferably between 0 5 and 2 percent of triclosan in related non limiting embodiments of the invention the treatment solution may further comprise silver sulfadiazine preferably in a concentration of between 0 5 and 1 percent more preferably 0 75 percent in still other related embodiments a coating of a hydrophobic polymer may be applied over the treated article section 8 below presents working examples of embodiments set forth in this paragraph in another particular non limiting embodiment the present invention provides.