Distribution and Feeding of the Sea Cucumber Isostichopus badionotus in Relation to Shelter and Sediment Criteria of the Bermuda Platform

  • Sloan N
  • von Bodungen B
  • 56


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The adsorption of diphenoxylate hydrochloride, a potent antidiarrheal agent, on activated charcoal powder was studied in vitro. Langmuir adsorption isotherms were established at pH 4 and 7, and the maximum adsorption capacity of charcoal for this drug was estimated using these values. Activated charcoal modified the bioavailability of diphenoxylate hydrochloride in vivo. The antipropulsive action of diphenoxylate in the mouse was strongly inhibited in the presence of activated charcoal. A comparative evaluation of charcoal and chromium oxide used as inert, nonabsorbable markers revealed that chromium oxide may be the marker of choic in GI transit studies in laboratory animals since it does not influence the bioavailability of diphenoxylate hydrochloride.

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  • NA Sloan

  • B von Bodungen

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