💊
Typical Dose 150-250 mg
⏱️
Duration 2h - 4h
⚠️
Interaction Risk Unknown
🔬
Detection Methods 1
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Effect Profile

Describes the acute effect. This profile does not influence the OpenMind Score.

No effect profiles yet. Describe the acute effect without changing the long-term score.

Description

βk-MDMA is a cathinone stimulant and empathogen, similar in structure to MDMA, though more stimulating and less empathogenic in comparison. Was very commonly mis-sold as MDMA on the street until it was banned in 2013. The Marquis reagent can differentiate βk-MDMA from MDMA. Less potent than MDMA with a slightly shorter duration.

Effects & Dosing

Dosage

Oral

Light Common Strong
100-150 mg 150-250 mg 200-300 mg

Duration

Oral

Onset 15 min - 1h
Total Duration 2h - 4h
After Effects 6h - 24h
Safety & Risks

Detection Times

Method Detection Window
Urine 1–3 days

Note: Synthetic cathinone (bk-MDMA). Can trigger false positives for MDMA/amphetamines on some immunoassays. Requires specific testing for confirmation.

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