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Oxamniquine

Anthelmintic · Antiparasitic

AnthelminticAntiparasitic
CDSCO approvedSchedule H
EXCRETION
not curated
INTERACTIONS
5 major
SEVERE in our sources
PREGNANCY
C
FDA category + note
Top interactionssee all 5
  • BupropionSevereDatabaseDDInter
  • IohexolSevereDatabaseDDInter
  • IopamidolSevereDatabaseDDInter
  • ThioridazineSevereDatabaseDDInter

Mechanism

Oxamniquine is effective for the treatment of Schistosoma mansoni infections. The precise molecular mechanism of action is not detailed in the provided texts.

Indications

Schistosoma mansoni infectionsIntestinal or hepatic schistosomiasis caused by Schistosoma mansoni

Dosing

Adult
after a 400­mg oral dose, and its plasma half­life is 8–12 hours. The sulfoxide is mostly protein­bound, distributes well to tissues, and enters bile, cerebrospinal fluid, and hydatid cysts. Albendazole metabolites are excreted in the urine. Benzimidazoles are thought to act against nematodes by inhibiting microtubule synthesis.…

Pharmacokinetics

Bioavailability
well absorbed; food retards absorption and reduces bioavailability
Excretion
about 70% of an administered dose is excreted in urine as a mixture of pharmacologically inactive metabolites

Side effects

Common
dizzinessdrowsinessheadacheorange urineelevated aminotransferases
Serious
  • seizures
  • hallucinations

Pregnancy & lactation

Pregnancy

C

Drug interactions

Bupropion
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Iohexol
Severe
Database

Clinical effect not specified

Source: DDInter

Iopamidol
Severe
Database

Clinical effect not specified

Source: DDInter

Thioridazine
Severe
Database

Clinical effect not specified

Source: DDInter

Tramadol
Severe
Database

Clinical effect not specified

Source: DDInter

7 additional low-confidence interactions hidden — those rows lack a documented mechanism or management plan in our sources.

Related guidelines

Other Anthelmintic drugs

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Sources: Harrison 22e, Katzung·Verified: 2026-05-13 · House clinical team