The Effect of Donepezil on Sedation and Other Symptoms - Full Text View - ClinicalTrials.gov Home Search Study Topics Glossary Donepezil is currently used in the treatment of certain types of mental disorders, including Alzheimer's disease. Recent research studies have shown that donepezil helps to improve drowsiness in cancer patients receiving opioid medication.Before treatment starts, you will be asked to answer some questions regarding your cancer diagnosis, the medication you are taking, and the symptoms you are having (i.e. pain, fatigue, nausea, depression, anxiety, drowsiness, shortness of breath, appetite, sleep problem, constipation, and well-being) and a test for your cognitive status (matching specific numbers with given geometric figures) will be performed. It will take about 30 minutes to complete the evaluation. Women who are at risk of being pregnant must have a negative urine pregnancy test.
