Molecule

Drug Groups

approved; investigational

Description

A basic aluminum complex of sulfated sucrose. [PubChem]

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.

Pharmacology

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.

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.

Affected Organisms

Absorption

Minimally absorbed from the gastrointestinal tract (up to 5% of the disaccharide component and less than 0.02% of aluminum).

Half Life

Not known.

Elimination

The small amounts of the sulfated disaccharide that are absorbed are excreted primarily in the urine.

References

External Links