Dimethyl phenethylamine

PhytochemicalAlkaloid

What is it

N,N-Dimethylphenethylamine (DMPEA, also called Eria jarensis extract on some labels) is a synthetic or plant-derived stimulant found in pre-workout, weight-loss, and 'mood-boost' supplements.

Evidence for 1 use

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

Acute energy and focus (stimulant effect)

Mixed Evidence

No published controlled human trials demonstrate efficacy or characterize safety. Anecdotal reports describe stimulant and mood-elevating effects.

How it works

DMPEA is a substituted phenethylamine structurally related to amphetamine-like compounds. It is thought to act primarily as a trace amine-associated receptor (TAAR1) agonist and to weakly release norepinephrine and dopamine, producing stimulant and euphoric effects. Its pharmacokinetics in humans are poorly characterized. Effects are reported as shorter and milder than DMAA (1,3-dimethylamylamine) but in a similar category. Quality, dose, and combination with other stimulants in pre-workout blends drive both the perceived effects and the risk profile.

Dosage

No safe or validated dose has been established. Labels typically list 100-300 mg per serving in pre-workout blends, often combined with caffeine and other stimulants.

When and how to take it

Marketed as a pre-workout stimulant 30-45 minutes before exercise. Avoid evening use because of insomnia risk. Do not take more than the lowest effective amount; stop if you notice palpitations or significant blood-pressure changes.

1 commercial form

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

DMPEA HCl / citrate (pre-workout)

Often sold under the name Eria jarensis extract, though the actual plant content is debated.

Water-soluble salts; rapid oral absorption presumed.

Safety

Side effects can include elevated heart rate, raised blood pressure, jitteriness, insomnia, headache, and nausea. Long-term safety data are essentially absent. DMPEA's legal and regulatory status varies; the FDA has historically taken action against related stimulants such as DMAA.

Who should be cautious

Avoid with high blood pressure, heart disease, arrhythmias, hyperthyroidism, anxiety disorders, history of stroke, pregnancy, or breastfeeding. Avoid in athletes subject to drug testing (may flag or trigger sanctions). Avoid combining with other stimulants.

Interactions

May add dangerously to other stimulants, including caffeine, yohimbine, synephrine, prescription stimulants (such as ADHD medications), and MAO inhibitors. Combining with antidepressants, particularly MAOIs and SSRIs, raises concerns about serotonin syndrome and hypertensive crisis.

Frequently asked questions

Is DMPEA legal?⌄

Status varies by country. The FDA has historically taken enforcement action against related stimulants like DMAA in dietary supplements, and DMPEA's legitimate use in supplements is debated. WADA bans this and related stimulants in competition.

Is DMPEA safer than DMAA?⌄

It is often marketed as a 'milder' alternative, but there is essentially no published safety or efficacy data. Treat it with the same caution as other unstudied stimulants.

References

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

Research on Dimethyl phenethylamine (PubMed search) — PubMed link

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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.