Niclosamide

Niclosamide
Niclosamide
Systematic (IUPAC) name
5-chloro-N-(2-chloro-4-nitrophenyl)-2-hydroxybenzamide
Clinical data
AHFS/Drugs.com Micromedex Detailed Consumer Information
Pregnancy cat.  ?
Legal status  ?
Identifiers
CAS number 50-65-7 YesY
ATC code P02DA01 QP52AG03
PubChem CID 4477
DrugBank DB06803
ChemSpider 4322 YesY
UNII 8KK8CQ2K8G N
KEGG D00436 YesY
ChEMBL CHEMBL1448 YesY
Chemical data
Formula C13H8Cl2N2O4 
Mol. mass 327.119 g/mol
SMILES eMolecules & PubChem
 N(what is this?)  (verify)

Niclosamide (trade name Niclocide) is a teniacide ("tenia-" referring to tapeworm) in the anthelmintic family especially effective against cestodes that infect humans. It is also used as a piscicide.It is stressed that while antihelmintics are a drug family used to treat worm infections, Niclosamide is used specifically to treat tapeworms and is not effective against worms such as pinworms or roundworms. It is a chewable tablet taken orally, dosage depending on type of worm and patient's age and/or weight. Niclosamide molecules are lethal to tapeworms upon contact.

Side effects

The medication can have side effects such as abdominal pain, anorexia, diarrhea, and emesis. Rarely, dizziness, skin rash, drowsiness, perianal itching, and an unpleasant taste.

Mechanism of action

According to an article in Nature,[1] niclosamide uncouples oxidative phosphorylation in the tapeworm.

References

  1. ^ Weinbach EC, Garbus J (1969). "Mechanism of action of reagents that uncouple oxidative phosphorylation". Nature 221 (5185): 1016–8. doi:10.1038/2211016a0. PMID 4180173.