Donepezil-Induced Severe Anorexia and T-Wave Inversion in Early-Onset Alzheimer's Disease: A Case Report.

Donepezil hydrochloride, used to treat Alzheimer's disease, is typically initiated at a low dose and titrated to minimize gastrointestinal side effects. Despite its favorable safety profile, the patient developed severe anorexia, dehydration, and electrocardiographic abnormalities. This case highlights the need for individualized dosing and careful monitoring of caregivers during pharmacotherapy.