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Related Experiment Videos

[Effect of oxybutynin on lower urinary tract function].

O Nishizawa1, K Sugaya, T Suzuki

  • 1Department of Urology, Akita University School of Medicine.

Hinyokika Kiyo. Acta Urologica Japonica
|August 1, 1988
PubMed
Summary

Oxybutynin significantly increased bladder capacity in dogs, acting as an antispasmodic. This suggests its potential benefit for treating conditions like detrusor instability and hyperreflexia.

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Area of Science:

  • Pharmacology
  • Urology
  • Neuroscience

Context:

  • Investigating lower urinary tract function in decerebrate dogs.
  • Utilizing combined cystometry and sphincter electromyogram (EMG) for urodynamic assessment.
  • Evaluating the effects of oxybutynin on micturition before and after drug administration.

Purpose:

  • To determine the dose-dependent effects of oxybutynin on lower urinary tract function.
  • To assess oxybutynin's impact on the collecting and emptying phases of micturition.
  • To elucidate the mechanism of action of oxybutynin in modulating bladder activity.

Summary:

  • Oxybutynin administration (30, 100, 300 µg/kg) significantly increased threshold volume in a dose-dependent manner during the collecting phase.
  • A small but significant decrease in maximum voiding pressure was observed only at the highest dose (300 µg/kg) during the emptying phase.

Related Experiment Videos

  • Statistical analysis of urodynamic parameters indicated oxybutynin acts as a potent antispasmodic agent.

    • Impact:

    • Oxybutynin demonstrates efficacy as an antispasmodic agent.
    • The findings suggest oxybutynin's therapeutic potential for managing symptoms of detrusor instability.
    • This study supports the use of oxybutynin in treating conditions characterized by detrusor hyperreflexia.