A 73-year-old male asked:
i stopped taking namenda (memantine) a few days ago because of confusion problems, how long do the effects last after stopping? i now take donepezil 5mg
1 doctor answer • 1 doctor weighed in
Clinical Psychology 36 years experience
Good change, I hope: The half-life of Namenda (memantine) is no more than 80 hrs. This should mean that it will be unlikely to still have and effects in a week to 10 days. But your doctor or a pharmacist may explain it better. The new drug should not have that side effect, but watch it and discuss risks w/ the doctor too. Best wishes for good results!
4065 viewsAnswered >2 years ago
Last updated Dec 3, 2016
Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
$15 per month
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.