Comparison of activated charcoal and sodium polystyrene sulfonate resin efficiency on reduction of amitriptyline oral absorption in rat as treatments for overdose and toxicities
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چکیده
OBJECTIVES Comparative in vivo studies were carried out to determine the adsorption characteristics of amitriptyline (AMT) on activated charcoal (AC) and sodium polystyrene sulfonate (SPS). AC has been long used as gastric decontamination agent for tricyclic antidepressants and SPS has showed to be highly effective on in-vitro drugs adsorption. MATERIALS AND METHODS Sprague-Dawley male rats were divided into six groups. Group I: control, group II: AMT 200 mg/kg as single dose orally, group III and IV: AC 1g/kg as single dose orally 5 and 30 min after AMT administration respectively, and group 5 and 6: SPS 1 g/kg as single dose orally 5 and 30 min after AMT administration, respectively. 60 min after oral administration of AMT (Tmax of AMT determined in rats), Cmax plasma levels were determined by a validated GC-Mass method. RESULTS The Cmax values for groups II to IV were determined as 1.1, 0.5, 0.6, 0.1 and 0.3 µg/ml, respectively. CONCLUSION AC and SPS could significantly reduce Cmax of AMT when administrated either 5 or 30 min after AMT overdose (P<0.05). However, SPS showed to be more effective than AC in reducing Cmax when was administrated immediately (5 min) after AMT overdose. The results suggest a more efficient alternative to AC for AMT and probably other TCA overdoses.
منابع مشابه
Commentary: Comparison of activated charcoal and sodium polystyrene sulfonate resin efficiency on reduction of amitriptyline oral absorption in rat as treatments for overdose and toxicities
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Comparison of activated charcoal and sodium polystyrene sulfonate resin efficiency on reduction of amitriptyline oral absorption in rat as treatments for overdose and toxicities
Objective(s): Comparative in vivo studies were carried out to determine the adsorption characteristics of amitriptyline (AMT) on activated charcoal (AC) and sodium polystyrene sulfonate (SPS). AC has been long used as gastric decontamination agent for tricyclic antidepressants and SPS has showed to be highly effective on in-vitro drugs adsorption. Materials and Methods: Sprague-Dawley male rats...
متن کاملCommentary: Comparison of activated charcoal and sodium polystyrene sulfonate resin efficiency on reduction of amitriptyline oral absorption in rat as treatments for overdose and toxicities
Dear editor We read with interest the recent article by Yousefi et al “Comparison of activated charcoal (AC) and sodium polystyrene sulfonate (SPS) resin efficiency on reduction of amitriptyline oral absorption in rat as treatments for overdose and toxicities” (1). While we commend the authors for studying the important issue of gastrointestinal decontamination, we have a few concerns with this...
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Tricyclic antidepressant (TCA) overdose is a relatively common cause of poisoning. According to the American Association of Poison Control Centers, 7961 patients with amitriptyline poisoning were reported in 2000. Of these, 958 were under 6 years old, 6388 needed treatment in a health care facility and 68 patients died [1]. The current therapy of TCA overdose includes preventive measures such a...
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