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Related Experiment Videos

Ivermectin dose assessment without weighing scales

N D Alexander1, S N Cousens, H Yahaya

  • 1Guinness Ophthalmic Unit, Ahmadu Bello University Teaching Hospital, Kaduna, Nigeria.

Bulletin of the World Health Organization
|January 1, 1993
PubMed
Summary
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Two new methods for ivermectin dosing in onchocerciasis campaigns are presented. Height and physical appearance can be used to determine correct ivermectin tablet dosage, simplifying mass drug administration.

Area of Science:

  • Public Health
  • Tropical Medicine
  • Pharmacology

Background:

  • Mass chemotherapy campaigns for onchocerciasis rely on accurate ivermectin dosing.
  • Weighing patients is a common method but can be impractical in large-scale field operations.
  • Alternative methods for ivermectin dose assessment are needed to improve efficiency and accessibility.

Purpose of the Study:

  • To evaluate two alternative methods for assessing ivermectin dosage in mass chemotherapy campaigns.
  • To compare the accuracy and practicality of height-based and visual estimation methods against traditional weighing.
  • To determine the potential for these methods to optimize ivermectin distribution in onchocerciasis control programs.

Main Methods:

  • A height-based dosing categorization system was developed and tested.
Keywords:
AfricaAfrica South Of The SaharaBiologyBody HeightBody WeightClinical ResearchClinical TrialsDeveloping CountriesDiseasesDouble-blind StudiesDrugs--administraction and dosageEnglish Speaking AfricaExaminations And DiagnosesHealthNigeriaOphthalmological EffectsParasite ControlParasitic DiseasesPhysical Examinations And DiagnosesPhysiologyPublic HealthResearch MethodologyResearch ReportStudiesTreatmentWestern Africa

Related Experiment Videos

  • A visual appearance-based estimation method was assessed by multiple observers.
  • Data were collected from participants in a placebo-controlled ivermectin trial in Nigeria.

    • Main Results:

    • The height-based method resulted in 0.5% underdosed, 46.5% correctly dosed, 51.7% overdosed by 1/2 tablet, and 1.2% overdosed by 1 tablet.
    • The visual appearance method achieved 82% correct dosing estimates, with all incorrect estimates deviating by only 1/2 tablet.
    • Both methods demonstrated potential for practical application in mass drug administration.

    Conclusions:

    • Height and visual appearance are viable alternatives to weighing for ivermectin dosing in onchocerciasis control.
    • These simplified dosing strategies can enhance the efficiency and effectiveness of mass chemotherapy campaigns.
    • Further implementation studies are warranted to confirm the real-world applicability of these methods.