Amoebic Dysentery: Drug Therapy

Therapeutic target

  • Rehydration (compensate for fluid losses).
  • Elimination of pathogens
  • Avoidance of complications

Therapy recommendations

  • Symptomatic therapy including fluid replacement – oral rehydration for signs of dehydration (fluid deficiency; > 3% weight loss): administration of oral rehydration solutions (ORL), which should be hypotonic, between meals (“tea breaks”) for mild to moderate dehydration.
  • Amoebic dysentery and amoebic liver abscess are treated the same.
  • If the patient is in poor general condition, antibiotic therapy should be started intravenously (“into a vein”):
    • Treatment with: Metronidazole (antibiotic from the nitroimidazole group) in invasive infection Nitroimidazoles act predominantly against pathogens in the tissue and only to a small extent in the intestine. Therefore, subsequent sanitation (eradication/complete elimination of a pathogen) by a contact amoebicide (acting in the intestine) is required:
      • Treatment with: Paromomycin (aminoglycoside antibiotic).
  • Notice: In individual cases, additional antibiotics against bacterial superinfections are indicated.
  • The success of therapy should be checked by stool examinations.
  • Asymptomatic patients with cysts or minuta forms in the stool are treated only if the pathogen Entamoeba histolytica can be detected → 10 days of administration of a contact amebicide.
  • See also under “Further therapy“.