Oxybutynin 3.9mg/day; transdermal patch. ≥18yrs: Apply to clean, dry and smooth area on the abdomen, hips, or buttocks. Use 1 patch for 4 days in a row. Remove patch after 4 days and apply new one.

The Oxytrol for Women (oxybutynin) patch is available without a prescription ... Patches and pills to treat an overactive bladder can cause side effects that include blurred vision, constipation ...