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The Effect of a Non-Selective Lipophilic Beta-Blocker on the Blood Pressure and Noradrenaline, Vasopressin, Cortisol and Renin Release During Alcohol Withdrawal

The Effect of a Non-Selective Lipophilic Beta-Blocker on the Blood Pressure and Noradrenaline, Vasopressin, Cortisol and Renin Release During Alcohol Withdrawal

J F Potter, L T Bannan, D G Beevers

Clin Exp Hypertens A. 1984;6(6):1147-60.

PMID: 6378439

Abstract:

Alcoholics during detoxification have elevated blood pressures which are related to the severity of their withdrawal symptoms. We studied the effect of a non-selective beta-blocker, timolol on symptoms, blood pressure and plasma levels of cortisol (PC), noradrenaline (NA), vasopressin (AVP) and renin activity (PRA) during alcohol withdrawal. Eighteen alcoholics, admitted for detoxification, were randomly allocated to timolol or placebo in a double blind trial. Alcohol withdrawal symptoms did not differ either before or after timolol or placebo but patients receiving timolol required less sedation with chlormethiazole. Systolic blood pressures (SBP) and pulse both fell significantly during detoxification in both groups, the change being greater with timolol. Plasma levels of cortisol, NA, AVP and PRA fell significantly, though only NA and PC correlated with initial SBP. Timolol had no effect on any of the biochemical parameters observed. The pressor response to alcohol withdrawal is reduced by beta-blockade and the height of the blood pressure is related to plasma NA and PC levels. Alcohol withdrawal hypertension is probably due to increased sympathetic activity.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP30165969	Timolol Related Compound F		30165-96-9	Price

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