Drug General Information (ID: DDI428LCE6)
  Drug Name Droperidol Drug Info Epinephrine Drug Info
  Drug Type Small molecule Small molecule
  Therapeutic Class Antipsychotic Agents Vasoconstrictor Agents
  Structure

 Mechanism of Droperidol-Epinephrine Interaction (Severity Level: Moderate)
     Antagonize the effect of antihypertensive agents Click to Show/Hide Mechanism Graph
Could Not Find 2D Structure
      Drug Name Droperidol Epinephrine
      Mechanism Hypotensive effects
Alpha-1 adrenergic receptor  Antagonist
Hypertensive effects
Alpha-1 adrenergic receptor  Agonist
      Key Mechanism Factor 1
Factor Name Adrenergic receptor alpha-1 Structure Sequence
Protein Family G-protein coupled receptor 1 family
Protein Function
This alpha-adrenergic receptor mediates its action by association with G proteins that activate a phosphatidylinositol-calcium second messenger system. Its effect is mediated by G(q) and G(11) proteins. Nuclear ADRA1A-ADRA1B heterooligomers regulate phenylephrine(PE)-stimulated ERK signaling in cardiac myocytes.
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      Mechanism Description
  • Antagonize the effect of Droperidol when combined with Epinephrine 

Recommended Action
      Management Epinephrine is not recommended for the treatment of droperidol-induced hypotension. Other vasopressors should be considered.

References
1 Hardman JG, Gilman AG, Limbird LE eds. "Goodman and Gilman's the Pharmacological Basis of Therapeutics. 9th ed." New York, NY: McGraw-Hill (1995):.
2 Product Information. Inapsine (droperidol). Janssen Pharmaceutica, Titusville, NJ.