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Dihydrostreptomycin toxicity in the Mongolian gerbil, Meriones unguiculatus

S R Wightman, P C Mann, J E Wagner

    Laboratory Animal Science
    |February 1, 1980
    PubMed

    Insights

    Dihydrostreptomycin, an antibiotic, caused fatal acute toxicity in Mongolian gerbils. A dose of 50 mg resulted in 80-100% mortality, indicating significant toxicity of this component.

    Area of Science:

    • Veterinary Toxicology
    • Pharmacology
    • Animal Models

    Background:

    • Antibiotic combinations are widely used in veterinary medicine.
    • Assessing the toxicity of individual components within combination therapies is crucial.
    • Penicillin-dihydrostreptomycin-procaine is a common antimicrobial formulation.

    Purpose of the Study:

    • To identify the component responsible for acute fatal toxicity in a penicillin-dihydrostreptomycin-procaine combination administered to Mongolian gerbils.
    • To quantify the lethal dose of the toxic component in the study model.

    Main Methods:

    • Administration of a penicillin-dihydrostreptomycin-procaine combination to Mongolian gerbils.
    • Observation and recording of mortality rates following injection.
    • Isolation and testing of individual components to determine the source of toxicity.

    Main Results:

    • The antibiotic combination induced a fatal acute toxicity syndrome.
    • Dihydrostreptomycin was identified as the sole causative agent of the observed toxicity.
    • A dosage of 50 mg of dihydrostreptomycin resulted in 80-100% mortality in gerbils weighing 55-65 g.

    Conclusions:

    • Dihydrostreptomycin possesses significant acute toxic potential in Mongolian gerbils.
    • The use of dihydrostreptomycin, particularly in combination therapies, warrants careful dosage consideration due to its high mortality rate.
    • Further research into the toxicological mechanisms of dihydrostreptomycin is recommended.

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