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Interference of psychotropic drugs with the injuring action of ethanol on gastric mucosal barrier

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Mroczka J., Bilski R., Dziadus-Sokolowska A., Szlachcic A., Sieppel-Maciejewska K., Michalski J.
Polish Journal of Pharmacology
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1993
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vol. 45
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issue 1
67-74
EN
The aim of this study was to establish whether some psychotropic drugs applied to patients under influence of alcohol, may potentiate its damaging action on gastric mucosal barrier. A sensitive index of such damage is a decline of the potential difference (PD) across the stomach wall. The experiments were carried out on Wistar rats of either sex, anesthetized with urethane-chloralose. The PD values were assayed with an apolarization method. The investigated solutions were administered intragastrically by gavage. Ethanol at a concentration of 40% v/v depressed PD by 39%. The investigated psychotropic drugs did not change PD by themselves but given in combination with ethanol caused significant decline of PD: diazepam (0,4 mg/kg) by 58%, chlorpromazine (6,7 mg/kg) by 59%, imipramine (2 mg/kg) by 48%, amitryptyline (4mg/kg) by 49%, phenytoin (4 mg/kg) by 53%, pridinol (0,3 mg/kg) by 58%. Intragastric administration of water did not change PD. The results indicate that while psychotropic drugs given alone do not affect significantly the gastric mucosal barrier, they may potentiate the damaging action of ethanol on this barrier.
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