What is the recommended dose of mebendazole (antiparasitic medication) for a child weighing 14 kg?

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Mebendazole Dosage for a 14 kg Child

For a 14 kg child, the recommended dose of mebendazole is 100 mg twice daily for 3 days. 1

Dosing Recommendations by Parasite Type

General Helminth Infections

  • For most helminth infections in children, mebendazole is administered at 100 mg twice daily for 3 days 2
  • For children weighing less than 20 kg (which includes a 14 kg child), the appropriate dose remains 100 mg twice daily 1, 2

Specific Parasitic Infections

  • Whipworm (Trichuris trichiura): 100 mg twice daily for 3 days, often combined with ivermectin for better efficacy 1
  • Hookworm infections: 100 mg twice daily for 3 days, though a multiple-dose regimen shows significantly higher cure rates (98%) compared to single-dose regimens (13%) 3
  • Ascariasis (Ascaris lumbricoides): Can be treated with either 100 mg twice daily for 3 days or a single 500 mg dose 1

Administration Considerations

  • Mebendazole can be given with or without food 2
  • For young children who cannot swallow tablets, the tablets can be chewed or crushed and mixed with food 2
  • The full course of treatment should be completed even if symptoms improve before completion 1

Monitoring and Safety

  • Mebendazole is generally well-tolerated in children 4, 2
  • Common mild adverse events include abdominal pain, headache, and diarrhea 3
  • No significant laboratory monitoring is required for short-course therapy in otherwise healthy children 2

Alternative Options

  • Albendazole: 400 mg as a single dose can be an alternative for Ascaris infections 1, 5
  • Praziquantel: For certain tapeworm infections at 10-25 mg/kg as a single dose 1
  • Ivermectin: Often used in combination with mebendazole for certain infections 1

Important Clinical Considerations

  • For heavy infections or mixed parasitic infections, the full 3-day course is preferred over single-dose regimens 3, 6
  • Treatment efficacy should be confirmed with follow-up stool examination 2-3 weeks after treatment completion 3
  • Re-treatment may be necessary in areas with high reinfection rates 1

Remember that the appropriate dose of mebendazole for a 14 kg child is 100 mg twice daily for 3 days, which provides the optimal balance of efficacy and safety for most helminth infections.

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Research

Mebendazole in the treatment of helminthiasis.

Canadian Medical Association journal, 1976

Research

Further experience with mebendazole in the treatment of symptomatic trichuriasis in children.

The American journal of tropical medicine and hygiene, 1978

Research

Albendazole, an effective single dose, broad spectrum anthelmintic drug.

The American journal of tropical medicine and hygiene, 1983

Research

Efficacy of single doses of mebendazole in the treatment of Trichuris trichiura infection.

The American journal of tropical medicine and hygiene, 1983

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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