Teikoku Pharma USA Inc., the international specialty pharmaceutical company, announces that it has signed an exclusive worldwide (excluding Japan) licensing agreement with Eisai Co., Ltd. to develop and commercialize a new transdermal formulation of donepezil, a leading compound for the treatment of Alzheimer's disease in the world.

The transdermal formulation is a once-a-week patch that continuously delivers donepezil through the skin into the bloodstream. It will enable the number of doses to be reduced, make it easier to be used for patients with Alzheimer's disease who have difficulty in swallowing, and also reduce the burden of caregivers or family members when administering it to patients.