Oxybutynin Not Dissolving

Oxybutynin 15mg Extended Release

Due to my spinal cord injury and paraplegia I use digital stimulation for my bowel program and therefor have the opportunity to feel some of the fecal matter as it comes through my colon. On at least 4 occasions I have found the Oxybutynin 15mg Extended Release tablets entirely intact. As an experiment I placed a tablet in a glass of water for 24 hours and after that time found the tablet intact except for the light coating that dissolved. The remains of the tablet had an almost rubber like coating. The tablet could be cut with a knife and the interior contained a white powder. It seems like the tablets are not dissolving. I have had to increase my dose to two tablets a day instead of one. In the past I was taking 5mg of Oxybutynin 3Xday. What is the mechanism for dissolving the tablets...

4 REPLIES Filed under Oxybutynin