Oxybutynin Chloride, Extended-Release Tablets USP, 10 mg, 100 Tablet, Rx Only, Distributed by: Lannett Company, Inc, Philadelphia, PA 19154 NDC: 62175-271-37
Failed Dissolution Specifications
Nationwide, including Puerto Rico.
https://www.accessdata.fda.gov/scripts/ires/index.cfm?Product=D-0996-2019