Skip to content
    Compare notes on r/BodyHackGuideCompare notes with other researchers. Join r/BodyHackGuide
    cholinergic

    Huperzine A Dosage Guide: Protocols, Calculator & Safety

    Everything you need to know about Huperzine A dosing: protocols, safety, and where to buy.

    Common Dose

    0.1mg

    Frequency

    Every other day or 2-3x per week

    Half-Life

    10h

    Onset

    30 min

    Administration Routes

    Capsules

    Dosage Calculator

    Calculate exact dosing for Huperzine A.

    Dosing Protocols

    Beginner

    0.05mg · Every other day or 2-3x per week

    Standard

    0.1mg · Every other day or 2-3x per week

    Advanced

    0.2mg · Every other day or 2-3x per week

    Side Effects & Safety

    Nausea, Diarrhea, Excessive cholinergic activity, Vivid dreams/nightmares

    Contraindications

    Heart conditions, GI ulcers, Asthma

    Check interactions with the Interaction Checker →

    Cycling Protocol

    2-4 weeks on / 1-2 weeks off. Or dose every other day. Long half-life means accumulation.

    Frequently Asked Questions

    What is the recommended Huperzine A dose?

    The common dose is 0.1mg (range: 0.05-0.2mg). Every other day or 2-3x per week

    How often should I take Huperzine A?

    Every other day or 2-3x per week

    Does Huperzine A need to be cycled?

    Yes. 2-4 weeks on / 1-2 weeks off. Or dose every other day. Long half-life means accumulation.

    What are Huperzine A side effects?

    Nausea, Diarrhea, Excessive cholinergic activity, Vivid dreams/nightmares

    Where can I buy Huperzine A?

    Visit our nootropic compound page for Huperzine A to find sources and product recommendations.

    Free 2026 Peptide Cheat Sheet (PDF)

    38 compounds and blends: vial sizes, BAC water volumes, dosing ranges and bloodwork markers.

    Download Free