Diloxanide%2525252525252525252525252525252520furoate

# Diloxanide furoate ## Overview Diloxanide furoate is a luminal amebicide used primarily to treat asymptomatic intestinal colonization by *Entamoeba histolytica*. It is poorly absorbed from the gastrointestinal tract, allowing it to act locally within the bowel lumen. It is often used in combination with a tissue-active amebicide (e.g., metronidazole or tinidazole) for invasive disease. ## Primary Indications * Asymptomatic carriage (cyst passer) of *Entamoeba histolytica*. * Follow-up treatment for invasive intestinal or extraintestinal amebiasis after the completion of tissue-active therapy. ## Adult Dosing * **Standard Regimen:** 500 mg orally three times daily for 10 days. ## Pediatric Dosing * **Standard Regimen:** 20 mg/kg/day administered in three divided doses for 10 days. * **Maximum:** Do not exceed 1,500 mg/day (500 mg per dose). ## Dose Adjustments * **Renal/Hepatic Impairment:** No specific guidelines exist; however, use with caution in patients with severe hepatic impairment as the drug is metabolized in the liver. Always consult local institutional protocols. ## Contraindications * Hypersensitivity to diloxanide furoate. * Severe hepatic impairment (precautionary). ## Adverse Effects * **Common:** Flatulence, nausea, vomiting, and abdominal cramps. * **Less Common:** Pruritus, urticaria, and rarely, elevated liver enzymes. ## Key Drug Interactions * Minimal systemic absorption limits significant drug-drug interactions. However, concurrent use with other agents affecting gut motility may alter the efficacy of luminal transit. ## Monitoring * Baseline and periodic assessment of stool samples (o&p) to confirm eradication of *E. histolytica* cysts. * Monitor for gastrointestinal distress or symptoms of allergic reaction. ## Clinical Pearls * **Not for systemic disease:** Diloxanide furoate is ineffective against extraintestinal amebiasis (e.g., liver abscess). If the patient presents with symptomatic invasive disease, it must be paired with an agent like metronidazole. * **Availability:** In many regions, this drug may be difficult to source and may require importation through specialized pharmacies or public health authorities (e.g., CDC Drug Service in the USA). * **Adherence:** Complete the full 10-day course even if gastrointestinal symptoms resolve early to ensure total parasite clearance. *** **Disclaimer:** This information is for educational purposes only. Clinical practice guidelines and drug availability vary by region. Always verify specific dosing, safety, and regulatory status via current prescribing information (e.g., package inserts or official clinical guidelines) before administering medication.