Sucralfate

CAS No:
54182-58-0 Category:
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Product Details:

  • CAS No: 54182-58-0
  • AHFC code: 56:28.3
  • Synonyms:
  • ATC Code: A02BX02
  • Chemical Formula: C14H21N3O2S
  • Molecular Weight: 1448.682
  • Assay/Purity: Typically NLT 98%
  • DrugBank: DB00364 (APRD01238)
  • SMILES: O[Al](O)OS(=O)(=O)OC[C,H]1O[C,,H](O[C,]2(COS(=O)(=O)O[Al](O)O)O[C,H](OS(=O)(=O)O[Al](O)O)[C,,H](OS(=O)(=O)O[Al](O)O)[C,,H]2OS(=O)(=O)O[Al](O)O)[C,H](OS(=O)(=O)O[Al](O)O)[C,,H](OS(=O)(=O)O[Al](O)O)[C,,H]1OS(=O)(=O)O[Al](O)O
  • InChl: MNQYNQBOVCBZIQ-JQOFMKNESA-A
  • PubChem: 6398525
  • IUPAC:

Additional Details

Indication:
For the short-term treatment (up to 8 weeks) of active duodenal ulcer, as well as maintenance therapy for duodenal ulcer patients at reduced dosage (1 gram twice a day) after healing of acute ulcers. Also used for the short-term treatment of gastric ulcer.
Pharmacodynamics:
Sucralfate is a prescription medication used to treat peptic ulcers. The current clinical uses of sucralfate are limited. It is effective for the healing of duodenal ulcers, but it is not frequently used for this since more effective drugs (e.g. proton pump inhibitors) have been developed. Although the mechanism of sucralfate's ability to accelerate healing of duodenal ulcers remains to be fully defined, it is known that it exerts its effect through a local, rather than systemic, action. Chemically, sucralfate is a complex of the disaccharide sugar, sucrose, combined with sulfate and aluminum. In acidic solutions (e.g. gastric acid) it forms a thick paste that has a strong negative charge.
Mode of Action:
Although sucralfate's mechanism is not entirely understood, there are several factors that most likely contribute to its action. Sucralfate, with its strong negative charge, binds to exposed positively-charged proteins at the base of ulcers. In this way, it coats the ulcer and forms a physical barrier that protects the ulcer surface from further injury by acid and pepsin. It directly inhibits pepsin (an enzyme that breaks apart proteins) in the presence of stomach acid and binds bile salts coming from the liver via the bile thus protecting the stomach lining from injury caused by the bile acids. Sucralfate may increase prostaglandin production. Prostaglandins are known to protect the lining of the stomach and may also bind epithelial growth factor and fibroblast growth factor, both of which enhance the growth and repair mechanism of the stomach lining.
Metabolism:
Toxicity:
Acute oral toxicity (LD50) in mice is >8000 mg/kg. There is limited experience in humans with overdosage of sucralfate. Sucralfate is only minimally absorbed from the gastrointestinal tract and thus risks associated with acute overdosage should be minimal. In rare reports describing sucralfate overdose, most patients remained asymptomatic.
General Reference:
Rees WD: Mechanisms of gastroduodenal protection by sucralfate. Am J Med. 1991 Aug 8;91(2A):58S-63S. Pubmed
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