Izometadon

Isomethadone is a synthetic opioid analgesic structurally related to methadone. It was formerly available as a pharmaceutical product but has since been withdrawn from the market and is seldom encountered today. It is reported to possess approximately twice the analgesic potency of methadone and is said to produce euphoric effects. As with other opioids, it carries a risk of habit formation and respiratory depression.

Classification

Chemical: Opioid
Psychoactive: Depressant
Tag: Diphenylpropylamine
Tag: Habit-Forming
Tag: Tentative

Effects

Pain Relief
Pupil Constriction
Muscle Relaxation
Itchiness
Dry Mouth
Relaxant
Euphoria
Mood Enhancement
Mood Lift
Reduced Anxiety
Anxiety Suppression
Confusion
Dulled Perception
Decreased Libido
Visual Acuity Suppression

Routes of Administration

Oral

Dosage

Heavy: 15 mg
Light: 1.5 – 2.5 mg
Common: 2.5 – 7.5 mg
Strong: 7.5 – 15 mg
Threshold: 1.5 mg

Duration

Onset: 0.5-1.5 h
After Effects: 1-24 h

Harm Reduction

Check interactions before mixing substances, pay attention to dose spacing and hydration, and treat all dosage guidance as approximate rather than guaranteed safe.

Sources

Substance data is aggregated from the following public harm-reduction and reference sources.

Links

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