FAQs
Why is donepezil usually recommended at bedtime?
Because its peak plasma concentration occurs 3‑4 hours after ingestion, taking it at night means the highest levels happen while you’re asleep, reducing the impact of nausea, dizziness, and vivid dreams.
Can I switch to a morning dose if bedtime dosing disrupts my sleep?
Yes. Your doctor can gradually shift the dosing time earlier. Be aware that side‑effects such as dizziness or stomach upset may become more noticeable during the day.
What is the maximum approved dose of donepezil for Alzheimer’s?
The approved ceiling is 10 mg once daily. Higher doses are only used in research settings and carry an increased risk of adverse events.
What are the most common side‑effects of donepezil in older adults?
Typical side‑effects include dizziness, nausea, diarrhea, vivid dreams or insomnia, and occasional muscle cramps. Most lessen after a few weeks of treatment.
What should I do if I miss a dose of donepezil?
If you remember within 12 hours, take it right away. If more time has passed, skip the missed dose and continue with your regular bedtime schedule—never double‑dose.
