Is Huperzine A Safe with Galantamine?
Free · No account · based on published sources including NIH ODS, FDA drug labels, and peer-reviewed literature
Do not use Huperzine A with Galantamine. Report any symptoms of nausea, vomiting, muscle cramps, or irregular heartbeat to your healthcare provider immediately.
Why this interaction occurs
Galantamine inhibits acetylcholinesterase and allosterically modulates nicotinic receptors. Adding Huperzine A creates compounded cholinergic stimulation beyond therapeutic levels, significantly increasing the risk of cholinergic toxicity and cardiac conduction disturbances.
Evidence
Evidence level: strong.
Data source
PubMed: PMID 31820476, PMID 30823604
Reported safety data
The FDA’s adverse event reporting system (FAERS) has received 3,604 reports mentioning Galantamine. This reflects reported cases involving the medication in general — not confirmed causation, and not specific to the Galantamine + supplement combination on this page.
FAERS reports are voluntary and cannot prove that a drug caused an event. Do not use report counts to assess the safety of this specific drug-supplement pair.
Frequently asked questions
Related interactions
All Huperzine A interactions → · All Galantamine interactions →
Already checked this one — check your whole list
Educational only — not medical advice.
Always confirm with your doctor or pharmacist.