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Innovar-Vet-induced pathologic changes in the guinea pig.

W M Newton, P K Cusick, M R Raffe

    Laboratory Animal Science
    |October 1, 1975
    PubMed
    Summary
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    High doses of Innovar-Vet caused tissue damage at the injection site, with effects increasing with dosage. This drug-induced pathology in the ischiatic nerve coincided with self-mutilation in animals.

    Area of Science:

    • Veterinary Pathology
    • Pharmacology

    Background:

    • Innovar-Vet is a veterinary pharmaceutical.
    • Intramuscular administration is a common drug delivery route in animals.

    Purpose of the Study:

    • To investigate the pathologic changes induced by high doses of Innovar-Vet administered intramuscularly.
    • To correlate these changes with observed clinical signs such as self-mutilation.

    Main Methods:

    • Administration of varying high doses of Innovar-Vet via intramuscular injection in animal models.
    • Histopathologic examination of tissues at the injection site and the ischiatic nerve.
    • Correlation of pathologic findings with the onset and severity of self-mutilation.

    Main Results:

    • High doses of Innovar-Vet induced dose-dependent pathologic changes at the intramuscular injection site.

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  • Peak pathologic changes in the ischiatic nerve were observed.
  • Distal self-mutilation occurred concurrently with the peak nerve pathology.

    • Conclusions:

    • Intramuscular administration of high-dose Innovar-Vet can lead to significant local tissue damage.
    • A potential link exists between Innovar-Vet-induced ischiatic nerve pathology and self-mutilation behavior.