[Effect of various antiseptics on Chlamydia trachomatis].

We compared the activity of different antiseptics (chlorhexidine, picloxidine dichlorhydrate, povidone-iodine, and noxythiolin) on Chlamydia trachomatis using two techniques. In the first, an antigenic preparation obtained from a Chlamydia trachomatis-infected cell culture was used. Different times of contact and different concentrations were studied. The antigen-antiseptic mixture was inoculated on healthy cell cultures and infected cells were counted 48 hours later. In the second technique, previously infected cells were incubated with antiseptics at different concentrations for 48 hours. Results are given as a percentage of infected cells. Chlorhexidine and picloxidine dichlorhydrate have a rapid action on Chlamydia trachomatis. Noxythiolin requires a longer period (2 hours) to be active. Povidone-iodine exhibits no activity on Chlamydia trachomatis.