Drug reference

niclosamide

For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.

Drug class

Anti Parasitic (Anti Helmintic)

Mechanism of action

Niclosamide works by killing tapeworms on contact. Adult worms (but not ova) are rapidly killed, presumably due to uncoupling of oxidative phosphorylation or stimulation of ATPase activity. The killed worms are then passed in the stool or sometimes destroyed in the intestine.

Common side effects

  • Vomiting
  • Nausea
  • GI Pain
  • Diarrhea

Related conditions

Frequently asked questions

What drug class is niclosamide?

niclosamide belongs to: Anti Parasitic.

How does niclosamide work?

Niclosamide works by killing tapeworms on contact. Adult worms (but not ova) are rapidly killed, presumably due to uncoupling of oxidative phosphorylation or stimulation of ATPase activity. The killed worms are then passed in the stool or sometimes destroyed in the intestine.

What are the common side effects of niclosamide?

Vomiting, Nausea, GI Pain, Diarrhea

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