Biopharmaceutics & drug disposition · 1995
Selective adherence of a sucralfate-tetracycline complex to gastric ulcers: implications for the treatment of Helicobacter pylori.
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Yokel R A, Dickey K M, Goldberg A H
Аннотация
The adherence of a sucralfate-tetracycline complex to gastric ulcers and to nearby non-ulcer sites was determined in the rabbit antrum. Persistent gastric ulcers were produced by a previously described method. The presence of the complex was assessed 1 and 4 h after dosing. Drug adherence was determined by quantitation of aluminum in stomach wall biopsies. Significantly more aluminum adhered to ulcer sites than to nearby non-ulcer sites. Adherence of the complex did not significantly decrease from 1 to 4 h. The complexation of tetracycline to sucralfate did not alter the selective adherence of sucralfate to gastric ulcers, providing a mechanism of ulcer site-selective drug delivery in the treatment of Helicobacter pylori gastric ulcer disease.