Library

Fenelzin

Phenelzine is a non-selective, irreversible MAOI used for treatment-resistant depression, atypical depression, panic disorder, and social anxiety disorder. It requires strict dietary restrictions to avoid hypertensive crisis from tyramine-containing foods (aged cheeses, cured meats, fermented foods, certain alcoholic beverages). Numerous drug interactions can be life-threatening - a 14-day washout period is required when switching to or from other antidepressants. Not recommended for use with other serotonergic or adrenergic drugs. Vitamin B6 supplementation (pyridoxine form) may be needed due to enzyme interactions.

Fenelzin molecular structure
Fenelzin molecular structure diagram from the DrugsPRO substance library.

Also known as: Nardil, Kalgan, Monofen, Fenelzin, Stinerval, Β-phenylethylhydrazine, Phenelzinum, W-1544a

Classification

  • Chemical: Medicine
  • Tag: Antidepressant
  • Tag: Hydrazine derivative
  • Tag: MAOI

Effects

  • Sedation
  • Insomnia
  • Orthostatic Hypotension
  • Weight Gain
  • Dry Mouth
  • Fatigue
  • Mood Lift
  • Anxiety Suppression
  • Cognitive Enhancement
  • Dizziness
  • Euphoria
  • Anxiety
  • Appetite Suppression
  • Sexual Dysfunction
  • Light Sensitivity
  • Dulled Perception
  • Disinhibition
  • Tactile Suppression

Routes of Administration

Oral

Dosage

  • Light: 15 mg/day
  • Common: 30-60 mg/day (divided doses)
  • Strong: 90 mg/day (maximum recommended)
  • Heavy: Above 90 mg/day (not recommended)

Duration

  • Onset: 1-2 h
  • Comeup: 2-4 h
  • Peak: 2-4 h
  • Offset: 2 h
  • After Effects: 1-2 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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Phenelzine - DrugsPRO vodič po substancah

Phenelzine: Phenelzine is a non-selective, irreversible MAOI used for treatment-resistant depression, atypical depression, panic disorder, and social anxiety disorder. It requires strict dietary restrictions to avoid hypertensive crisis from tyramine-containing foods (aged cheeses, cured meats, ferm

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