Roidipedia.Compound reference & reporting
05 AUG 2026
CompoundsResearch chemical 5-EAPDB
Research chemicalEntactogenSerotonin releaserBenzofuran

5-EAPDB

Also known as N-ethyl-5-APDB · 1-(2,3-dihydrobenzofuran-5-yl)-N-ethylpropan-2-amine

5-EAPDB is the N-ethyl homolog of 5-APDB, a benzofuran entactogen with almost no human characterisation. By analogy to the MDA-to-MDEA relationship, N-ethylation likely yields a milder, more sedating, serotonergic profile. It carries the serotonergic neurotoxicity, hyperthermia, and serotonin-syndrome concerns of the MDMA class.

01 Overview

5-EAPDB sits in the benzofuran entactogen family alongside 5-APB, 5-APDB, and 5-MAPDB. The N-ethyl group typically softens euphoria and increases sedation relative to the primary amine, as seen when comparing MDA and MDEA.

No formal human pharmacology or safety data exist. Its serotonin-releasing action implies neurotoxicity and serotonin-syndrome risk, and benzofurans raise specific 5-HT2B cardiovascular concerns. Likely controlled under benzofuran, analog, or psychoactive-substances provisions.

02 Mechanism

N-ethylated benzofuran serotonin-preferring releaser at monoamine transporters, predicted to give MDMA-like entactogenic effects with a sedating, serotonergic bias.

03 Dosing

TierDoseRouteNotes
Light60–100 mgOralEstimated; potency poorly defined
Common100–170 mgOralEstimated common range, high uncertainty

04 Effects

EffectMagnitudeEvidence
Sedating entactogenesisExpected softer, more sedating MDMA-like effects than 5-APDB by analogy to MDEA.Presumed moderateUnconfirmed
Low stimulationN-ethylation predicts reduced stimulation.MildUnconfirmed

05 Side effects

EffectSeverityFrequencyEvidenceCountermeasures
Serotonin syndromeTheoretical serious risk from serotonin release, especially in combination.Life-threateningRare, elevated with serotonergic drugsUnconfirmed
Cardiovascular strainBenzofurans carry 5-HT2B agonism and cardiovascular load concerns.ModerateCommon (predicted)Unconfirmed
HyperthermiaOverheating risk shared with the MDMA class.SevereUncommonUnconfirmed

07 References

Benzofuran APB/APDB entactogens: pharmacology overviewBritish Journal of Pharmacology

08 Discussion0 comments

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