Sexually Transmitted Diseases--Drug Treatment
  • Epididymitis:
    • Affected age group: < 35 years old
      • Causative agent(s):
        • Chlamydia trachomatis (more often)
        • Neisseria gonorrhoeae
    • Older age group or those who have had urinary tract instrumentation:
      • Causative agents:
        • enteric gram-negative bacilli
          • may also cause urethritis or epididymitis in men practicing unprotected, inserted anal intercourse
        • Pseudomonas
    • Drug of choice:
      • ofloxacin (Floxin)
        •  may be used in the absence of culture data
    • Alternative agent:
      • ceftriaxone (Rocephin) (single IM dose followed by 10 day treatment with doxycycline (Vibramycin, Doryx)
  • Pelvic Inflammatory Disease
    • Causative Agents
      • Chlamydia trachomatis and Neisseria gonorrhoeae: responsible for about 2/3 of active cases
      • Other organisms included Mycoplasma hominis (other facultative agents and anaerobic bacteria can be present)
    • Inpatients:
      • Drugs of choice:
        •  cefotetan (Cefotan) or cefoxitin (Mefoxin) plus doxycycline (Vibramycin, Doryx, contraindicated in pregnancy)
        •  doxycycline (Vibramycin, Doryx) alone -- contraindicated in pregnancy
        • Or
        • clindamycin (Cleocin) +gentamicin (Garamycin), followed by doxycycline (Vibramycin, Doryx)
      •  Alternative agents:
        •  ofloxacin (Floxin) + metronidazole (Flagyl)
        • ampicillin (Principen, Omnipen)/sulbactam + doxycycline (Vibramycin, Doryx)
        •  ciprofloxacin + doxycycline (Vibramycin, Doryx,contraindicated in pregnancy) + metronidazole (Flagyl)
        •  all combinations continued until improvement is observed: then doxycycline (Vibramycin, Doryx, contradicted in pregnancy) for a 14 day time course
    • Outpatients
      • Drugs of choice:
        •  ofloxacin (Floxin, contraindicated in pregnancy) + metronidazole (Flagyl)
        • Or
        •  ceftriaxone (Rocephin) Or
        •  cefoxitin (Mefoxin) + probenecid (Benemid)-- either cephalosporin, ceftriaxone (Rocephin) or cefoxitin (Mefoxin), followed by doxycycline (Vibramycin, Doryx, contraindicated in pregnancy)
Reference:"Drugs for Sexually Transmitted Infections", The Medical Letter, vol. 41 (issue 1063), September, 24, 1999, Published by the Medical Letter, Inc, New Rochelle, N.Y.