Alzheimer's disease is caused by the constant degeneration of certain nerve cells in the brain that make a chemical called acetylcholine. This chemical is thought to be important for the processes of learning and memory. Rivastigmine prevents the breakdown of acetylcholine, thereby increasing its levels in the brain. Rivastigmine may improve cognitive function (memory, orientation, and language) and general ability to perform activities of daily living. Rivastigmine patch may take several weeks to begin working, and individual response varies.

Exelon Patch 10
Each patch of 10 cm² contains 18 mg rivastigmine base, with in vivo release rate of 9.5 mg/24 hours. The outside of the backing layer is beige and labeled with "PrEXELON* PATCH 10 (rivastigmine) 9.5 mg/24 h" and "BHDI". Nonmedicinal ingredients: acrylic copolymer, poly(butylmethacrylate, methyl-methacrylate), silicone adhesive applied to a flexible polymer backing film, silicone oil, and vitamin E.