Hemodynamic changes by drug interaction of adrenaline with chlorpromazine

Hitoshi Higuchi, Akiko Kawase, Minako Ishii-Maruhama, Yumiko Tomoyasu, Shigeru Maeda, Takuya Miyawaki

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Adrenaline (epinephrine) is included in dental local anesthesia for the purpose of vasoconstriction. In Japan, adrenaline is contraindicated for use in patients receiving antipsychotic therapy, because the combination of adrenaline and an antipsychotic is considered to cause severe hypotension; however, there is insufficient evidence supporting this claim. The purpose of the present study was to clarify the changes in hemodynamics caused by drug interaction between adrenaline and an antipsychotic and to evaluate the safety of the combined use of adrenaline and an antipsychotic in an animal study. Male Sprague-Dawley rats were anesthetized with sodium pentobarbital. A catheter was inserted into the femoral artery to measure blood pressure and pulse rate. Rats were pretreated by intraperitoneal injection of chlorpromazine or chlorpromazine and propranolol, and after 20 minutes, saline or 1 of 3 different doses of adrenaline was administered by intraperitoneal injection. Changes in the ratio of mean arterial blood pressure and pulse rate were measured after the injection of adrenaline. Significant hypotension and tachycardia were observed after the injection of adrenaline in the chlorpromazine-pretreated rats. These effects were in a dose-dependent manner, and 100 μg/kg adrenaline induced significant hemodynamic changes. Furthermore, in the chlorpromazine and propranolol-pretreated rats, modest hypertension was induced by adrenaline, but hypotension and tachycardia were not significantly shown. Hypotension was caused by a drug interaction between adrenaline and chlorpromazine through the activation of the β-adrenergic receptor and showed a dose-dependent effect. Low-dose adrenaline similar to what might be used in human dental treatment did not result in a significant homodynamic change.

Original languageEnglish
Pages (from-to)150-154
Number of pages5
JournalAnesthesia Progress
Volume61
Issue number4
Publication statusPublished - Dec 1 2014

Fingerprint

Chlorpromazine
Drug Interactions
Epinephrine
Hemodynamics
Antipsychotic Agents
Hypotension
Intraperitoneal Injections
Tachycardia
Propranolol
Arterial Pressure
Heart Rate
Dental Anesthesia
Controlled Hypotension
Injections
Pentobarbital
Local Anesthesia
Femoral Artery
Vasoconstriction
Adrenergic Receptors
Sprague Dawley Rats

Keywords

  • Adrenaline
  • Antipsychotics
  • Drug interaction
  • Epinephrine
  • Local anesthesia

ASJC Scopus subject areas

  • Anesthesiology and Pain Medicine

Cite this

Hemodynamic changes by drug interaction of adrenaline with chlorpromazine. / Higuchi, Hitoshi; Kawase, Akiko; Ishii-Maruhama, Minako; Tomoyasu, Yumiko; Maeda, Shigeru; Miyawaki, Takuya.

In: Anesthesia Progress, Vol. 61, No. 4, 01.12.2014, p. 150-154.

Research output: Contribution to journalArticle

Higuchi, H, Kawase, A, Ishii-Maruhama, M, Tomoyasu, Y, Maeda, S & Miyawaki, T 2014, 'Hemodynamic changes by drug interaction of adrenaline with chlorpromazine', Anesthesia Progress, vol. 61, no. 4, pp. 150-154.
Higuchi, Hitoshi ; Kawase, Akiko ; Ishii-Maruhama, Minako ; Tomoyasu, Yumiko ; Maeda, Shigeru ; Miyawaki, Takuya. / Hemodynamic changes by drug interaction of adrenaline with chlorpromazine. In: Anesthesia Progress. 2014 ; Vol. 61, No. 4. pp. 150-154.
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