Fascioliasis Treatment & Management

Updated: Jul 17, 2023
  • Author: Harbir Singh Arora, MD; Chief Editor: Russell W Steele, MD  more...
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Medical Care

Triclabendazole, a benzimidazole derivative, has become the drug of choice for the treatment of fascioliasis. [22] It is recommended by the World Health Organization (WHO). Although available from the Centers for Disease Control and Prevention (CDC) for many years, triclabendazole was approved in the United States for fascioliasis in patients aged 6 years or older in February 2019. It is given as a 2-dose regimen of 10 mg/kg/dose separated by 12 hours. A study of 24 subjects in Chile revealed cure rates of 79.2% with one dose and 100% with 2 doses. [32] Another study comparing a group of 68 patients treated with one dose to a second group of 66 patients treated with two doses showed better cure rates of 93.9% in second group as compared with 79.4% in the first group. [33] A study of 90 pediatric subjects treated with triclabendazole in Bolivia reported no serious adverse effects and reduction of high intensity infections (>400 eggs per gm of stool) from 7.8% to 0% with two doses. [33] Resistance to triclabendazole in livestock is well known and now has been reported in human subjects as well. [34]

Nitazoxanide is a good alternative to triclabendazole, especially in the chronic stage of infection. It is given as 500 mg twice a day for 7 days in adults. [35, 36, 37] A pediatric study done in Mexico showed cure efficacy of 94% after one course and 100% after repeating the course. [38]

Bithionol, a halogenated phenol previously used as a first-line agent for the treatment of fascioliasis in United States, is no longer available. [37] Praziquantel, previously used as an alternative drug, is no longer recommended due to poor efficacy against Fasciola species. Other drugs that were used previously and are no longer recommended due to toxicity include emetine, dehydroemetine, metronidazole, albendazole, niclofolan, chloroquine, hexachloro-para-xylol, artesunate, and artemether. [22]

Fascioliasis complicated by ascending cholangitis requires treatment with appropriate antibacterial antibiotics.

The condition of the patient with fascioliasis determines inpatient care versus outpatient care. Transfer is necessary only when specialized services or care (see Consultations) are unavailable.


Surgical Care

Patients with ascending cholangitis may require surgery.



An infectious diseases specialist and gastroenterologist should be consulted in patients with suspected fascioliasis.

A surgeon may be consulted.

Patients with an ectopic infection or a visceral larva migrans–like illness may require additional consultations for specific manifestations of the condition.

Consult the CDC Drug Service (404-639-3670) to obtain bithionol. See Drugs Available Through the CDC Drug Service. See CDC Drug Service: Bithionol.


Diet and Activity


A regular diet as tolerated is recommended.


Activity as tolerated is recommended.



Fascioliasis can be prevented through public education about avoiding consumption of contaminated water plants, water, and raw liver.

A vaccine candidate comprising activated dendritic cells shows promise in mouse infection. [39]