The Effects of Oxybutynin on Learning and Memory Functions In Passive Avoidance and Morris Water Maze Tests In Mice

Objective: Overactive bladder (OAB) constitutes the majority of childhood incontinence causes. Oxybutynin is an antimuscarinic agent frequently used for children in the treatment of OAB. This study aimed to investigate the effects of an antimuscarinic drug oxybutynin on learning and memory. Materials and Methods: We assessed the effects of oxybutynin on learning and memory functions using the Passive Avoidance (PA) and the Morris Water Maze (MWM) Test in mice. Results: Oxybutynin treatment (1 mg/kg, 2 mg/kg, and 4 mg/kg) did not show a significant difference in the retention time on the second day compared to the control and oxybutynin (4 mg/kg) significantly prolonged the retention time in scopolamine-treated mice. In the MWM Test, oxybutynin (1 mg/kg, 2 mg/kg, and 4 mg/kg) has no effect on the time spent in the target quadrant. Scopolamine (0.6 mg/kg) alone significantly reduced time spent in the target quadrant, but oxybutynin (4 mg/kg) significantly prolonged time spent in the target quadrant in scopolamine-treated mice. Also, scopolamine significantly increased the mean distance to the escape platform, while oxybutynin (4 mg/kg) significantly decreased the mean distance to the escape platform in scopolamine-treated mice. Conclusion: In our study, oxybutynin did not affect learning and memory, but it plays a role ameliorating the learning and memory deficits. The results of this study show that the use of oxybutynin in patients with OAB does not affect learning and memory.