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Updated: Aug 9, 2026

Disrupting Reconsolidation of Fear Memory in Humans by a Noradrenergic β-Blocker
Published on: December 18, 2014
[Terbutaline-induced metabolic responses after propranolol and metoprolol]
Abstract:
Subcutaneously administered terbutaline (7 micrograms/kg Bricanyl) induced typical changes in carbohydrate and fat metabolism and cardiovascular effects in ten healthy volunteers. A significant inhibition of changes in systolic and diastolic blood pressure, heart rate and plasma glycerol, FFA, lactate and potassium levels was seen after pretreatment with 0.1 mg/kg propranolol (Dociton) or 0.2 mg/kg metoprolol (Beloc). Intravenous metoprolol showed weaker beta-blocking activity than propranolol, but proved to be more effective in its action on systolic blood pressure.
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