Drug General Information (ID: DDIVO50AIX)
  Drug Name Procarbazine Drug Info Isocarboxazid Drug Info
  Drug Type Small molecule Small molecule
  Therapeutic Class Antineoplastics Antidepressants
  Structure

 Mechanism of Procarbazine-Isocarboxazid Interaction (Severity Level: Major)
     Additive hypertensive effects Click to Show/Hide Mechanism Graph
Could Not Find 2D Structure
      Drug Name Procarbazine Isocarboxazid
      Mechanism Hypertensive effects
Monoamine oxidase non-selective  Inhibitor
Hypertensive effects
Monoamine oxidase non-selective  Inhibitor
      Key Mechanism Factor 1
Factor Name Monoamine oxidase Structure Sequence
Protein Family Flavin monoamine oxidase family
Protein Function
Catalyzes the oxidative deamination of primary and some secondary amine such as neurotransmitters, with concomitant reduction of oxygen to hydrogen peroxide and has important functions in the metabolism of neuroactive and vasoactive amines in the central nervous system and peripheral tissues (PubMed:20493079, PubMed:8316221, PubMed:18391214, PubMed:24169519). Preferentially oxidizes serotonin (PubMed:20493079, PubMed:24169519). Also catalyzes the oxidative deamination of kynuramine to 3-(2-aminophenyl)-3-oxopropanal that can spontaneously condense to 4-hydroxyquinoline (By similarity).
    Click to Show/Hide
      Mechanism Description
  • Additive hypertensive effects by the combination of Procarbazine and Isocarboxazid 

Recommended Action
      Management Administration of MAOIs with other MAOIs concurrently or in rapid succession is considered contraindicated. A washout period of at least 7 to 10 days is recommended when switching from one MAOI to another.

References
1 Bazire SR "Sudden death associated with switching monoamine oxidase inhibitors." Drug Intell Clin Pharm 20 (1986): 954-6. [PMID: 3816543]
2 Cerner Multum, Inc. "UK Summary of Product Characteristics.".
3 Multum Information Services, Inc. Expert Review Panel.