A study has been carried out on patients suffering from pelvic inflammatory disease (PID) in chronic form, so as to evaluate the effectiveness of treatment with methoxybutropate (Benflogin-Angelini). The study was carried out on 20 outpatients treated for eight weeks with 300 mg of methoxybutropate three times a day. The results have highlighted the noteworthy effectiveness and high tolerance of methoxybutropate in the treatment of PID.