What it is
An NMDA blocker prescribed for Alzheimer's. Peak sells it as Peakmantine.
How it helps
Used to slow tolerance to phenibut and other calming compounds, so they keep working.
What to watch for
Prescription drug. The tolerance use is based on animal studies and user reports. Dizziness and brain fog are common; don't drive.
These are compounds to research, not a protocol to copy. Education and my opinion, not medical advice. Talk to a doctor, especially before combining anything with prescription medication. Shop links are affiliate links: tapping one opens the store and copies my code.