PlainPill

Memantine

People mainly take Memantine for mood, focus, anxiety. Based on 89 first-hand reports and 236 meta-analyses & systematic reviews in the medical literature. Ranked #155 of 1,974 overall.

46
User score
Mixed
17% positive8% mixed10% negative65% unclear

Of reports that state an outcome, 49% are positive.

Clinical research
AStrong research base
236
meta-analyses
311
RCTs
4,846
papers

What Memantine does, according to users

Of the people who reported each effect, the share who said it got better.

What the research says

Systematic reviews and meta-analyses from PubMed, with their published conclusions.

AStrong research base

3+ meta-analyses or systematic reviews and 10+ randomized controlled trials in humans. The grade measures how much human research exists — read the conclusions below for what it found.

J Clin Oncol · 2022 · Meta-analysis / systematic review
Treatment for Brain Metastases: ASCO-SNO-ASTRO Guideline

Conclusion: Memantine and hippocampal avoidance should be offered to patients who receive whole brain radiation therapy and have no hippocampal lesions and 4 months or more expected survival. Patients with asymptomatic brain metastases with either Karnofsky Performance Status ≤ 50 or Karnofsky Performance Status < 70 with no systemic therapy options do not derive benefit from radiation therapy.Additional information is available at www.asco.org/neurooncology-guidelines.

PubMed 34932393 ↗

Dosage people report

As stated by users — not a recommendation. Follow the label or your doctor.

14 mg once daily (commenter); aiming for 15 mg twice dailydaily
7 mg XR15 mg IR
20 mgdaily
2-3 weeksas reported
5 mg2x daily

Reported side effects

How often each side effect came up across all reports.

brain fog ×11dizziness ×4anxiety ×2dissociation ×2confusion ×1insomnia ×1

What users say

Verbatim quotes, shortened only — each links to the original discussion.

“Only other thing I’d recommend is memantine.”
Source discussion ↗
“Check out memantine for stim tolerance reduction.”
Source discussion ↗
“Other possible drug which may help you is memantine, it reduces glutamate.”
Source discussion ↗
“Memantine has helped a lot of people lower their amphetamine dose to lower amounts, while still maintaining or improving the effects.”
Source discussion ↗
“Memantine. It up-regulates the dopaminergic system that was down-regulated during your Adderall use, through NMDA antagonism”
Source discussion ↗
Top discussions (5)

Other options for mood

User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 2, 2026. How we rate