DE

Isomethadone

Opioid Tentative Depressant Addictive
💊
Typical Dose 2.5-7.5 mg
⏱️
Duration 30h - 40h
⚠️
Interaction Risk Unknown
🔬
Detection Methods 1
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Community · single experiences

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

Once a pharmaceutical drug also known as isoamidone, this opioid analgesic and methadone analogue was withdrawn from the market and is seldom seen today. Rarely abused, though reports state it is around twice as potent as methadone, and more euphoric.

Effects & Dosing

Dosage

Oral

Light Common Strong
1.5-2.5 mg 2.5-7.5 mg 7.5-15 mg

Duration

Oral

Onset 30 min - 1h 30m
Total Duration 30h - 40h
After Effects 1h - 24h
Safety & Risks

Safer Use

  1. All other CNS depressants

Detection Times

Method Detection Window
Urine 2–7 days

Note: Synthetic opioid structurally related to methadone. May cross-react with methadone immunoassays.

Community Experiences

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