What is Niclosamide used for?

Niclosamide is indicated for: Cestodes, Hymenolepis spp. (cestodes), trematodes.

Which species have cited Niclosamide dosing data?

Niclosamide dosing in the ExoticRx formulary covers 2 species: Guinea Pig, Zebra Finch.

Is Niclosamide a controlled substance?

Niclosamide is not federally scheduled in the US. Controlled-drug status differs by country — verify your local rules.

Niclosamide

US brand names:Niclocide, Yomesan

Calculate dosage

Sourced from published veterinary references. Awaiting credentialed clinical reviewer — our editorial process.

Niclosamide is dosed at 500 mg/kg PO q7d x 4 wk in zebra finches, per 391. Hawkins MG, Barron H, Speer BL, et al. Birds. In: Carpenter JW, eds. Exotic Animal Formulary, 4th ed., Elsevier Saunders, St. Louis, MO; 2013:183-437. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.438 — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929; Current Therapy in Avian Medicine and Surgery — ISBN 9781455746712, https://openlibrary.org/isbn/9781455746712 [w3r2 2026-08-14] LOCATOR: Carpenter 6th ed, Table 5.4 (Antiparasitic Agents Used in Birds), row "500 mg/kg PO q7d x 4 wk391 | Finches". Held copy is a paginationless ebook conversion, so the table and not the page is the citable location. The block header prints "may be toxic for geese and some anseriformes" and "not available in the United States".. Verify against current literature before clinical use.

Drug Class

Antiparasitic

Routes

Mechanism of Action

Inhibits oxidative phosphorylation in cestode mitochondria, disrupting ATP production. Also inhibits glucose uptake by tapeworms.

Side effects & warnings

Effective against intestinal tapeworms only. Not absorbed systemically. May cause transient GI upset. Administer after light meal.

Species with Niclosamide dosing data (2 dose rules)

Guinea Pig Zebra Finch

Species references:All Guinea Pig drugs All Zebra Finch drugs

Evidence levels across 2 dose rules

Moderate×1Weak×1

Each ExoticRx dose rule is graded by the strength of its primary evidence — see the editorial process.

Backed by 2 published sources

· 391. Hawkins MG, Barron H, Speer BL, et al. Birds. In: Carpenter JW, eds. Exotic Animal Formulary, 4th ed., Elsevier Saunders, St. Louis, MO; 2013:183-437. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.438 — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929; Current Therapy in Avian Medicine and Surgery — ISBN 9781455746712, https://openlibrary.org/isbn/9781455746712 [w3r2 2026-08-14] LOCATOR: Carpenter 6th ed, Table 5.4 (Antiparasitic Agents Used in Birds), row "500 mg/kg PO q7d x 4 wk391 | Finches". Held copy is a paginationless ebook conversion, so the table and not the page is the citable location. The block header prints "may be toxic for geese and some anseriformes" and "not available in the United States".
· Beck W, Pantchev N. Praktische Parasitologie bei Heimtieren, Schluetersche Verlagsgesellschaft MBH & Co, Hannover, Germany; 2006. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.778 — Carpenter's Exotic Animal Formulary 6th ed, Table 9.2 (Antiparasitic Agents Used in Rodents). The copy held is an ebook conversion with no printed page numbers, so the table — not the page — is the citable location. — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929,

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