1 May 2026Oral drugs
Niclosamide oral
Niclosamide guidance for taeniasis including beef, pork, dwarf, and fish tapeworm infections.
This guide page is for structured reference only and does not replace a clinician, pharmacist, or emergency review. Dose choice, route choice, interactions, and safety decisions still need professional judgment.
Therapeutic action
Anthelminthic (taenicide).
Indications
Taeniasis: beef tapeworm, pork tapeworm, dwarf tapeworm, and fish tapeworm.
Forms and strengths
- 500 mg chewable tablet.
Dose and duration
T. saginata, T. solium and D. latum
- Child under 2 years: 500 mg single dose.
- Child from 2 to 6 years: 1 g single dose.
- Child over 6 years and adult: 2 g single dose.
H. nana
- Child under 2 years: 500 mg on D1, then 250 mg once daily for 6 days.
- Child from 2 to 6 years: 1 g on D1, then 500 mg once daily for 6 days.
- Child over 6 years and adult: 2 g on D1, then 1 g once daily for 6 days.
Contra-indications, adverse effects, precautions
- May cause gastrointestinal disturbances.
- Pregnancy: no contra-indication.
- Breast-feeding: no contra-indication.
- Chew or crush the tablets before swallowing with water.
- If vomiting occurs, the single dose may be divided into 2 doses taken one hour apart.
- Niclosamide is not active against the larval form of T. solium (cysticercosis).
Source
MSF Essential drugs practical guidelines (January 2026)
This page reproduces the structured reference information for this batch while leaving out the Storage and Remarks sections.
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