Evidence brief · Supplement
Huperzine A for Cognition in dementia
Evidence grade C — Variable-quality trials
- Overall grade
- Grade C
- Last revised
- 1
- graded outcome
- 0
- references listed
Assembled by the app from other entries in this library. It adds no evidence of its own — follow the links to the entries it draws on.
1 at grade C — 1 graded row
What is known
Each outcome with its grade (how strong the evidence is, A to D), the size of the effect where the entry records one, and how often studies agree.
- Cognition in dementiaEvidence grade C
Variable-quality trials
Smallmixed
What is uncertain
Read off the same rows as above. Nothing here is added that the entry does not itself record.
- Thin evidence: Cognition in dementia (grade C).
The evidence in words
The verdict
For cognition in dementia, Huperzine A earns evidence grade C (small effect, mixed consistency) — the evidence is limited or mixed. Variable-quality trials
How it might work
By blocking the enzyme that breaks down acetylcholine, it boosts cholinergic signaling — the same target class as some Alzheimer's drugs.
How to use it
50–200 µg if used; not for casual continuous use.
Safety & cautions
Cholinergic side effects (GI, cramps); additive with cholinesterase-inhibitor drugs — treat it as a drug.
Bottom line
Pharmacologically real but drug-like. Reserve for medical contexts; not a daily 'focus' supplement.
How it is used
As the entry records it, from the studies it summarises. Not a recommendation for you — doses that suit a trial population may not suit you.
- Standard
- 50–200 µg; not continuous casual use.
Goes with
- Huperzine ARead the full Huperzine A monographEvidence grade C
Related reading
Entries that share this one's tags or conditions.
- Sage for Cognition in dementiaEvidence grade C — PreliminaryEvidence grade C
- Bacopa Monnieri for Acute cognitionEvidence grade D — No same-day effectEvidence grade D
- Bacopa Monnieri for Memory (chronic)Evidence grade B — Delayed recall; 8–12 weeksEvidence grade B
- Citicoline (CDP-Choline) for Attention / memoryEvidence grade C — ModestEvidence grade C
Sources
This entry lists no references of its own — it is assembled from the entries it links to, whose sources are on their pages.
Last revised . A grade is this entry's reading of the evidence, not medical advice.