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In: Nursing

Amoprazole Drug to Drug-lifestyle interaction and evolution of medication effectiveness on paraplegic patient due to trauma...

Amoprazole Drug to Drug-lifestyle interaction and evolution of medication effectiveness on paraplegic patient due to trauma and no current ulcers or medical problems.

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Expert Solution

Name

Omeprazole

Accession Number

DB00338

Description

Originally approved by the FDA in 1989, omeprazole is a proton-pump inhibitor, used to treat gastric acid-related disorders. These disorders may include gastroesophageal reflux disease (GERD), peptic ulcer disease, and other diseases characterized by the oversecretion of gastric acid

Weight

Average: 345.416
Monoisotopic: 345.114712179

Chemical Formula

C17H19N3O3S

Patients with acute paraplegia from trauma have an increased frequency of developing gastric stress ulceration and subsequent hemorrhage. Current treatment of gastric stress ulcer is by antacids or H2 antagonists, but despite such therapy stress ulceration still occurs, probably because these agents are unable to maintain gastric pH above 4. Omeprazole, which blocks the terminal step of acid secretion--the proton pump, can produce long-lasting achlorhydria. This study examined the efficacy of omeprazole in preventing stress ulcer in rats with acute cervical cord transection. Omeprazole was administered intraduodenally at 1.725, 2.625, 3.5, and 17.5 mg/kg, and the ulcer incidence and gastric acid output were measured. Omeprazole produced a dose-dependent inhibition of gastric acid output in the cervical cord transected rat. At the highest dose, complete achlorhydria was achieved. The quantity of gastric ulceration was inversely proportional to the omeprazole dosage with nearly complete prevention of ulceration at the highest dose. In conclusion, omeprazole is very effective in preventing gastric stress ulcers in the spinal cord transected rat. This appears to be related to its potent long-lasting inhibitory effect on gastric acidity.


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