Sucralfate¿¡ ´ëÇÑ Mechanism_Of_Action Á¤º¸ 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, and 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.
Pharmacology
Sucralfate¿¡ ´ëÇÑ Pharmacology Á¤º¸ 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.
Metabolism
Sucralfate¿¡ ´ëÇÑ Metabolism Á¤º¸ # Phase_1_Metabolizing_Enzyme:Not Available
Protein Binding
Sucralfate¿¡ ´ëÇÑ ´Ü¹é°áÇÕ Á¤º¸ Not Available
Half-life
Sucralfate¿¡ ´ëÇÑ ¹Ý°¨±â Á¤º¸ Not known.
Absorption
Sucralfate¿¡ ´ëÇÑ Absorption Á¤º¸ Minimally absorbed from the gastrointestinal tract (up to 5% of the disaccharide component and less than 0.02% of aluminum).
Sucralfate¿¡ ´ëÇÑ Biotransformation Á¤º¸ Not Available
Toxicity
Sucralfate¿¡ ´ëÇÑ Toxicity Á¤º¸ 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.
Drug Interactions
Sucralfate¿¡ ´ëÇÑ Drug_Interactions Á¤º¸ Not Available
Sucralfate¿¡ ´ëÇÑ Food Interaction Á¤º¸ Avoid alcohol.Take on empty stomach: 1 hour before or 2 hours after meals.Take with a full glass of water.Do not take calcium, aluminum, magnesium or Iron supplements within 2 hours of taking this medication.