PREPARATIONS: Tablets: 1 g; Suspension: 1g/10 ml.
DRUG INTERACTIONS: When administered with other drugs sucralfate may bind to the drugs in the stomach and reduce absorption of the drugs. Sucralfate reduces the absorption of:
- dolutegravir (Tivicay),
- cimetidine (Tagamet),
- digoxin (Lanoxin),
- ketoconazole (Nizoral),
- levothyroxine (Synthroid),
- phenytoin (Dilantin),
- quinidine (Quinidex, Quinaglute),
- ranitidine (Zantac),
- theophylline (Theo-Dur, Uniphyl, others), and
- all of the fluoroquinolone antibiotics, including ciprofloxacin (Cipro), norfloxacin (Noroxin), ofloxacin (Floxin), and lomefloxacin (Maxaquin).
All of the these medications should be taken at least two hours prior to sucralfate.
It is possible, if not likely, that many other drugs will interact similarly with sucralfate. Therefore, it probably is prudent to take all medications at least 2 hours prior to sucralfate.
PREGNANCY BREASTFEEDING SAFETY: Sucralfate itself is not teratogenic (causing congenital deformities) in animals, even in doses considerably higher than those used in humans. Although some animal data demonstrate concern for the effects of aluminum during pregnancy, all human data show no ill-effect on the fetus. Sucralfate is considered safe during pregnancy.
STORAGE: Tablets and suspension should be kept at room temperature, between 15 C - 30 C (59 F - 86 F). The suspension should not be frozen and should be shaken prior to each use.
- The recommended dose for treatment of active ulcers is 1 gram four times daily for 4-8 weeks.
- Sucralfate is administered on an empty stomach, at least one hour prior to meals, for best results.
- The dose for maintenance (preventing recurrent ulcers) is 1 gram twice daily.
DRUG CLASS AND MECHANISM: Sucralfate is a unique oral drug that is used for treating ulcers of the upper gastrointestinal tract. Chemically, it is a complex of the disaccharide sugar, sucrose, combined with sulfate and aluminum. It is minimally absorbed into the body, and its actions are entirely on the lining of the stomach and duodenum. Although its mechanism of action is not entirely understood, the following actions are thought to be important for its beneficial effects:
- sucralfate binds to the surface of ulcers (attaching to exposed proteins) and coats the ulcer, thus protecting the ulcer surface to some extent from further injury by acid and pepsin;
- sucralfate directly inhibits pepsin (an enzyme that breaks apart proteins) in the presence of stomach acid;
- sucralfate 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.
Sucralfate was approved by the FDA in 1981.
Medically reviewed by Eni Williams, PharmD
Reference: FDA Prescribing Information
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