[Methods for AIDS prevention: importance and limitations of use of bleach]

The authors are discussing the interest of promoting the use of bleach as a powerful disinfectant among drug users. Following the researches conducted in the United States of America, the use of bleach has been introduced on an experimental basis in Paris. This action-research allowed to meet 1500 drug users who have received bleach and prevention materials. The evaluation of the action was conducted on a sample of 478 subjects. It was found that bleach could be used by addicts for syringe decontamination. The communication strategy implies a direct personal contact and a non judgmental message. Syringes must be carefully cleaned and rinsed at least twice with bleach in order to allow a one minute contact. In the absence of a new syringe the use of bleach provides a reasonable means of risk reduction if detoxification cannot be achieved.