Isobutylamides

PhytochemicalAlkylamide

What is it

Isobutylamides (also called alkylamides) are a class of plant-derived compounds best known from echinacea (Echinacea purpurea, E. angustifolia). They are responsible for the tingling, numbing sensation when chewing fresh echinacea root and for many of its claimed immune effects.

Evidence for 1 use

AI-assisted evidence assessment — talk to your doctor before relying on any single supplement.

Cold/immune support (as echinacea constituent)

Limited Evidence

Echinacea trials show modest possible benefit for cold duration and severity; results are inconsistent. Alkylamide-standardized extracts may perform better than poorly characterized products.

How it works

Isobutylamides bind to cannabinoid CB2 receptors (and to a lesser extent CB1) and modulate immune cell activity, with documented effects on cytokine production and inflammation in cell studies. They are bioavailable orally and reach detectable plasma concentrations after standardized echinacea ingestion. Some research suggests they contribute to echinacea's mild immunomodulating activity, though clinical trial results for echinacea on common cold prevention and treatment remain mixed.

Dosage

Standardized echinacea extracts often quantify alkylamide content (e.g., milligrams per dose). Total alkylamides in supplement doses typically range 1-5 mg.

When and how to take it

When used for cold support, take at first symptom onset and continue for 7-10 days. Time of day not critical.

1 commercial form

Compare the main delivery options and what they’re best suited for.

Standardized echinacea extract

Look for products standardized to alkylamide content.

Lipophilic; bioavailable orally with measurable plasma levels.

Safety

Generally well tolerated at typical echinacea doses. Allergic reactions can occur, particularly in people allergic to plants in the Asteraceae family.

Who should be cautious

People with autoimmune conditions are sometimes advised to avoid echinacea (theoretical immune stimulation), though evidence is limited. Allergy to Asteraceae family is a clear contraindication.

Interactions

Some alkylamides modestly inhibit CYP3A4 and CYP1A2 in vitro; clinical interactions appear minor at typical doses. Caution with narrow-therapeutic-index drugs.

Food sources

Not a food source

Amount
N/A
%DV
—

Frequently asked questions

Why does echinacea tongue tingle?⌄

Alkylamides bind to CB2 receptors and other targets, producing a characteristic numbing/tingling sensation. It is a quick way to identify fresh, active material.

References

Isobutylamides on NIH DSLD (US supplement label database) — NIH Dietary Supplement Label Database link

Research on Isobutylamides (PubMed search) — PubMed link

Track Isobutylamides with Pilora

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Evidence-based·How we grade evidence

Disclaimer: These statements have not been evaluated by the FDA. This page is educational, not a substitute for personalized medical advice. Evidence grades are AI-assisted assessments — talk to your doctor before starting any new supplement, especially if you’re pregnant, breastfeeding, on medications, or managing a chronic condition.