PRI KAVA

Module 4

Kavalactone Science

The 6 major kavalactones — their mechanisms, receptor targets, and PRI relevance. Plus a chemotype decoder for cultivar analysis.

The 6 Major Kavalactones

1

Desmethoxyyangonin

DMY

Increases dopamine

Reversible MAO-B inhibitor

PRI Relevance

Elevates mood, openness, sociability; reduces resistance to experience; fights effects of low dopamine.

2

Dihydrokavain

DHK

GABA-A potentiation — the strongest anxiolytic kavalactone

PRI Relevance

Core anxiety reduction; dissolves the fear that blocks readiness; the therapeutic workhorse of the kava bowl.

3

Yangonin

Y

CB1 receptor affinity — endocannabinoid system engagement

CNS calming

PRI Relevance

Endocannabinoid bridge; produces warm, grounded sensory receptivity; the body-warmth kavalactone.

4

Kavain

K

Sodium and calcium channel blockade

Acts on limbic system and amygdala

PRI Relevance

Physical relaxation without cognitive fog; the ideal carrier state. Chemotypes with 4 as first number are most desirable for ceremony. Kavain and dihydrokavain are the most permeable to the blood-brain barrier.

5

Dihydromethysticin

DHM

Increases serotonin

MAO-B inhibition

Activates glutamatergic NMDA receptors

PRI Relevance

Serotonergic priming; may sensitize 5-HT2A pathway for subsequent medicines; neuroprotective via Nrf2/HO1 pathway.

6

Methysticin

M

Serotonin modulation

Nrf2 and HO1 pathway activation (neuroprotective)

NF-kB inhibition (anti-inflammatory)

PRI Relevance

Anti-neuroinflammatory; protects the nervous system entering altered states; the guardian kavalactone.

Chemotype Decoder

Enter a chemotype string (e.g. 4-2-6-5-3-1) to see which kavalactones dominate and their effect profile. The first number indicates the dominant kavalactone.

Complete Pharmacological Profile (All 6 Combined)

GABA-A potentiation (not via benzodiazepine receptor — different binding site)

Dopamine modulation (dual — increases and decreases depending on specific kavalactone)

Reversible MAO-B inhibition — ALL 6 major kavalactones share this property

CB1 receptor affinity (endocannabinoid)

Sodium channel blockade

Calcium channel blockade — reduction up to 70%

Norepinephrine reuptake inhibition (kavain and methysticin)

Limbic system and amygdala targeting — fear center reduction

Neuroprotective via Nrf2/HO1 pathway (methysticin, kavain, yangonin)

Reverse tolerance — body becomes more sensitive to kava over time, not less

Non-addictive — no withdrawal syndrome documented in traditional use patterns

Disclaimer: For educational and harm reduction purposes. Consult a licensed medical professional before making any changes to medications or health protocols.